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3 Commits	https://github.com/leunnldun/interview_internal_reference/commits/master/
	https://github.com/leunnldun/interview_internal_reference/commits/master/
01.阿里篇	https://github.com/leunnldun/interview_internal_reference/tree/master/01.%E9%98%BF%E9%87%8C%E7%AF%87
01.阿里篇	https://github.com/leunnldun/interview_internal_reference/tree/master/01.%E9%98%BF%E9%87%8C%E7%AF%87
02.华为篇	https://github.com/leunnldun/interview_internal_reference/tree/master/02.%E5%8D%8E%E4%B8%BA%E7%AF%87
02.华为篇	https://github.com/leunnldun/interview_internal_reference/tree/master/02.%E5%8D%8E%E4%B8%BA%E7%AF%87
08.京东篇	https://github.com/leunnldun/interview_internal_reference/tree/master/08.%E4%BA%AC%E4%B8%9C%E7%AF%87
08.京东篇	https://github.com/leunnldun/interview_internal_reference/tree/master/08.%E4%BA%AC%E4%B8%9C%E7%AF%87
09.MySQL篇	https://github.com/leunnldun/interview_internal_reference/tree/master/09.MySQL%E7%AF%87
09.MySQL篇	https://github.com/leunnldun/interview_internal_reference/tree/master/09.MySQL%E7%AF%87
10.Redis篇	https://github.com/leunnldun/interview_internal_reference/tree/master/10.Redis%E7%AF%87
10.Redis篇	https://github.com/leunnldun/interview_internal_reference/tree/master/10.Redis%E7%AF%87
11.MongoDB篇	https://github.com/leunnldun/interview_internal_reference/tree/master/11.MongoDB%E7%AF%87
11.MongoDB篇	https://github.com/leunnldun/interview_internal_reference/tree/master/11.MongoDB%E7%AF%87
12.Zookeeper篇	https://github.com/leunnldun/interview_internal_reference/tree/master/12.Zookeeper%E7%AF%87
12.Zookeeper篇	https://github.com/leunnldun/interview_internal_reference/tree/master/12.Zookeeper%E7%AF%87
README.md	https://github.com/leunnldun/interview_internal_reference/blob/master/README.md
README.md	https://github.com/leunnldun/interview_internal_reference/blob/master/README.md
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README	https://github.com/leunnldun/interview_internal_reference
	https://github.com/leunnldun/interview_internal_reference#2019年最新总结阿里腾讯百度美团头条等技术面试题目以及答案专家出题人分析汇总持续更新中
阿里篇	https://github.com/leunnldun/interview_internal_reference#1
华为篇	https://github.com/leunnldun/interview_internal_reference#2
百度篇	https://github.com/leunnldun/interview_internal_reference#3
腾讯篇	https://github.com/leunnldun/interview_internal_reference#4
美团篇	https://github.com/leunnldun/interview_internal_reference#5
头条篇	https://github.com/leunnldun/interview_internal_reference#6
滴滴篇	https://github.com/leunnldun/interview_internal_reference#7
京东篇	https://github.com/leunnldun/interview_internal_reference#8
MySQL篇	https://github.com/leunnldun/interview_internal_reference#9
Redis篇	https://github.com/leunnldun/interview_internal_reference#10
MongoDB篇	https://github.com/leunnldun/interview_internal_reference#11
Zookeeper篇	https://github.com/leunnldun/interview_internal_reference#12
Nginx篇	https://github.com/leunnldun/interview_internal_reference#13
算法篇	https://github.com/leunnldun/interview_internal_reference#14
内存篇	https://github.com/leunnldun/interview_internal_reference#15
cpu篇	https://github.com/leunnldun/interview_internal_reference#16
磁盘篇	https://github.com/leunnldun/interview_internal_reference#17
网络通信篇	https://github.com/leunnldun/interview_internal_reference#18
安全篇	https://github.com/leunnldun/interview_internal_reference#19
并发篇	https://github.com/leunnldun/interview_internal_reference#20
	https://github.com/leunnldun/interview_internal_reference#阿里篇
1.1.1 如何实现一个高效的单向链表逆序输出？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.1%20%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E4%B8%80%E4%B8%AA%E9%AB%98%E6%95%88%E7%9A%84%E5%8D%95%E5%90%91%E9%93%BE%E8%A1%A8%E9%80%86%E5%BA%8F%E8%BE%93%E5%87%BA%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#111-如何实现一个高效的单向链表逆序输出
1.1.2 已知sqrt(2)约等于1.414，要求不用数学库，求sqrt(2)精确到小数点后10位	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.2%20%E5%B7%B2%E7%9F%A5sqrt%282%29%E7%BA%A6%E7%AD%89%E4%BA%8E1.414%EF%BC%8C%E8%A6%81%E6%B1%82%E4%B8%8D%E7%94%A8%E6%95%B0%E5%AD%A6%E5%BA%93%EF%BC%8C%E6%B1%82sqrt%282%29%E7%B2%BE%E7%A1%AE%E5%88%B0%E5%B0%8F%E6%95%B0%E7%82%B9%E5%90%8E10%E4%BD%8D.md
	https://github.com/leunnldun/interview_internal_reference#112-已知sqrt2约等于1414要求不用数学库求sqrt2精确到小数点后10位
1.1.3 给定一个二叉搜索树(BST)，找到树中第 K 小的节点	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.3%20%E7%BB%99%E5%AE%9A%E4%B8%80%E4%B8%AA%E4%BA%8C%E5%8F%89%E6%90%9C%E7%B4%A2%E6%A0%91%28BST%29%EF%BC%8C%E6%89%BE%E5%88%B0%E6%A0%91%E4%B8%AD%E7%AC%AC%20K%20%E5%B0%8F%E7%9A%84%E8%8A%82%E7%82%B9.md
	https://github.com/leunnldun/interview_internal_reference#113-给定一个二叉搜索树bst找到树中第-k-小的节点
1.1.4 LRU缓存机制	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.4%20LRU%E7%BC%93%E5%AD%98%E6%9C%BA%E5%88%B6.md
	https://github.com/leunnldun/interview_internal_reference#114-lru缓存机制
1.1.5 关于epoll和select的区别，以下哪些说法是正确的	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.5%20%E5%85%B3%E4%BA%8Eepoll%E5%92%8Cselect%E7%9A%84%E5%8C%BA%E5%88%AB%EF%BC%8C%E4%BB%A5%E4%B8%8B%E5%93%AA%E4%BA%9B%E8%AF%B4%E6%B3%95%E6%98%AF%E6%AD%A3%E7%A1%AE%E7%9A%84.md
	https://github.com/leunnldun/interview_internal_reference#115-关于epoll和select的区别以下哪些说法是正确的
1.1.6 从innodb的索引结构分析，为什么索引的 key 长度不能太长	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.6%20%E4%BB%8Einnodb%E7%9A%84%E7%B4%A2%E5%BC%95%E7%BB%93%E6%9E%84%E5%88%86%E6%9E%90%EF%BC%8C%E4%B8%BA%E4%BB%80%E4%B9%88%E7%B4%A2%E5%BC%95%E7%9A%84%20key%20%E9%95%BF%E5%BA%A6%E4%B8%8D%E8%83%BD%E5%A4%AA%E9%95%BF.md
	https://github.com/leunnldun/interview_internal_reference#116-从innodb的索引结构分析为什么索引的-key-长度不能太长
1.1.7 MySQL的数据如何恢复到任意时间点？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.7%20MySQL%E7%9A%84%E6%95%B0%E6%8D%AE%E5%A6%82%E4%BD%95%E6%81%A2%E5%A4%8D%E5%88%B0%E4%BB%BB%E6%84%8F%E6%97%B6%E9%97%B4%E7%82%B9%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#117-mysql的数据如何恢复到任意时间点
	https://github.com/leunnldun/interview_internal_reference#118-nfs-和-smb-是最常见的两种-nasnetwork-attached-storage协议当把一个文件系统同时通过-nfs-和-smb-协议共享给多个主机访问时以下哪些说法是错误的
1.1.9 输入 ping IP 后敲回车，发包前会发生什么？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.1.9%20%E8%BE%93%E5%85%A5%20ping%20IP%20%E5%90%8E%E6%95%B2%E5%9B%9E%E8%BD%A6%EF%BC%8C%E5%8F%91%E5%8C%85%E5%89%8D%E4%BC%9A%E5%8F%91%E7%94%9F%E4%BB%80%E4%B9%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#119-输入-ping-ip-后敲回车发包前会发生什么
1.2.0 请解释下为什么鹿晗发布恋情的时候，微博系统会崩溃，如何解决？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.0%20%E8%AF%B7%E8%A7%A3%E9%87%8A%E4%B8%8B%E4%B8%BA%E4%BB%80%E4%B9%88%E9%B9%BF%E6%99%97%E5%8F%91%E5%B8%83%E6%81%8B%E6%83%85%E7%9A%84%E6%97%B6%E5%80%99%EF%BC%8C%E5%BE%AE%E5%8D%9A%E7%B3%BB%E7%BB%9F%E4%BC%9A%E5%B4%A9%E6%BA%83%EF%BC%8C%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#120-请解释下为什么鹿晗发布恋情的时候微博系统会崩溃如何解决
1.2.1 现有一批邮件需要发送给订阅顾客，且有一个集群（集群的节点数不定，会动态扩容缩容）来负责具体的邮件发送任务，如何让系统尽快地完成发送？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.1%20%E7%8E%B0%E6%9C%89%E4%B8%80%E6%89%B9%E9%82%AE%E4%BB%B6%E9%9C%80%E8%A6%81%E5%8F%91%E9%80%81%E7%BB%99%E8%AE%A2%E9%98%85%E9%A1%BE%E5%AE%A2%EF%BC%8C%E4%B8%94%E6%9C%89%E4%B8%80%E4%B8%AA%E9%9B%86%E7%BE%A4%EF%BC%88%E9%9B%86%E7%BE%A4%E7%9A%84%E8%8A%82%E7%82%B9%E6%95%B0%E4%B8%8D%E5%AE%9A%EF%BC%8C%E4%BC%9A%E5%8A%A8%E6%80%81%E6%89%A9%E5%AE%B9%E7%BC%A9%E5%AE%B9%EF%BC%89%E6%9D%A5%E8%B4%9F%E8%B4%A3%E5%85%B7%E4%BD%93%E7%9A%84%E9%82%AE%E4%BB%B6%E5%8F%91%E9%80%81%E4%BB%BB%E5%8A%A1%EF%BC%8C%E5%A6%82%E4%BD%95%E8%AE%A9%E7%B3%BB%E7%BB%9F%E5%B0%BD%E5%BF%AB%E5%9C%B0%E5%AE%8C%E6%88%90%E5%8F%91%E9%80%81%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#121-现有一批邮件需要发送给订阅顾客且有一个集群集群的节点数不定会动态扩容缩容来负责具体的邮件发送任务如何让系统尽快地完成发送
1.2.2 有一批气象观测站，现需要获取这些站点的观测数据，并存储到 Hive 中。但是气象局只提供了 api 查询，每次只能查询单个观测点。那么如果能够方便快速地获取到所有的观测点的数据？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.2%20%E6%9C%89%E4%B8%80%E6%89%B9%E6%B0%94%E8%B1%A1%E8%A7%82%E6%B5%8B%E7%AB%99%EF%BC%8C%E7%8E%B0%E9%9C%80%E8%A6%81%E8%8E%B7%E5%8F%96%E8%BF%99%E4%BA%9B%E7%AB%99%E7%82%B9%E7%9A%84%E8%A7%82%E6%B5%8B%E6%95%B0%E6%8D%AE%EF%BC%8C%E5%B9%B6%E5%AD%98%E5%82%A8%E5%88%B0%20Hive%20%E4%B8%AD%E3%80%82%E4%BD%86%E6%98%AF%E6%B0%94%E8%B1%A1%E5%B1%80%E5%8F%AA%E6%8F%90%E4%BE%9B%E4%BA%86%20api%20%E6%9F%A5%E8%AF%A2%EF%BC%8C%E6%AF%8F%E6%AC%A1%E5%8F%AA%E8%83%BD%E6%9F%A5%E8%AF%A2%E5%8D%95%E4%B8%AA%E8%A7%82%E6%B5%8B%E7%82%B9%E3%80%82%E9%82%A3%E4%B9%88%E5%A6%82%E6%9E%9C%E8%83%BD%E5%A4%9F%E6%96%B9%E4%BE%BF%E5%BF%AB%E9%80%9F%E5%9C%B0%E8%8E%B7%E5%8F%96%E5%88%B0%E6%89%80%E6%9C%89%E7%9A%84%E8%A7%82%E6%B5%8B%E7%82%B9%E7%9A%84%E6%95%B0%E6%8D%AE%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#122-有一批气象观测站现需要获取这些站点的观测数据并存储到-hive-中但是气象局只提供了-api-查询每次只能查询单个观测点那么如果能够方便快速地获取到所有的观测点的数据
1.2.3 如何实现两金额数据相加（最多小数点两位）	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.3%20%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E4%B8%A4%E9%87%91%E9%A2%9D%E6%95%B0%E6%8D%AE%E7%9B%B8%E5%8A%A0%EF%BC%88%E6%9C%80%E5%A4%9A%E5%B0%8F%E6%95%B0%E7%82%B9%E4%B8%A4%E4%BD%8D%EF%BC%89.md
	https://github.com/leunnldun/interview_internal_reference#123-如何实现两金额数据相加最多小数点两位
1.2.4 关于并行计算的一些基础开放问题	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.4%20%E5%85%B3%E4%BA%8E%E5%B9%B6%E8%A1%8C%E8%AE%A1%E7%AE%97%E7%9A%84%E4%B8%80%E4%BA%9B%E5%9F%BA%E7%A1%80%E5%BC%80%E6%94%BE%E9%97%AE%E9%A2%98.md
	https://github.com/leunnldun/interview_internal_reference#124-关于并行计算的一些基础开放问题
1.2.5 请计算XILINX公司VU9P芯片的算力相当于多少TOPS，给出计算过程与公式	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.5%20%E8%AF%B7%E8%AE%A1%E7%AE%97XILINX%E5%85%AC%E5%8F%B8VU9P%E8%8A%AF%E7%89%87%E7%9A%84%E7%AE%97%E5%8A%9B%E7%9B%B8%E5%BD%93%E4%BA%8E%E5%A4%9A%E5%B0%91TOPS%EF%BC%8C%E7%BB%99%E5%87%BA%E8%AE%A1%E7%AE%97%E8%BF%87%E7%A8%8B%E4%B8%8E%E5%85%AC%E5%BC%8F.md
	https://github.com/leunnldun/interview_internal_reference#125-请计算xilinx公司vu9p芯片的算力相当于多少tops给出计算过程与公式
1.2.6 一颗现代处理器，每秒大概可以执行多少条简单的MOV指令，有哪些主要的影响因素	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.6%20%E4%B8%80%E9%A2%97%E7%8E%B0%E4%BB%A3%E5%A4%84%E7%90%86%E5%99%A8%EF%BC%8C%E6%AF%8F%E7%A7%92%E5%A4%A7%E6%A6%82%E5%8F%AF%E4%BB%A5%E6%89%A7%E8%A1%8C%E5%A4%9A%E5%B0%91%E6%9D%A1%E7%AE%80%E5%8D%95%E7%9A%84MOV%E6%8C%87%E4%BB%A4%EF%BC%8C%E6%9C%89%E5%93%AA%E4%BA%9B%E4%B8%BB%E8%A6%81%E7%9A%84%E5%BD%B1%E5%93%8D%E5%9B%A0%E7%B4%A0.md
	https://github.com/leunnldun/interview_internal_reference#126-一颗现代处理器每秒大概可以执行多少条简单的mov指令有哪些主要的影响因素
1.2.7 请分析 MaxCompute 产品与分布式技术的关系、当前大数据计算平台类产品的市场现状和发展趋势	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.7%20%E8%AF%B7%E5%88%86%E6%9E%90%20MaxCompute%20%E4%BA%A7%E5%93%81%E4%B8%8E%E5%88%86%E5%B8%83%E5%BC%8F%E6%8A%80%E6%9C%AF%E7%9A%84%E5%85%B3%E7%B3%BB%E3%80%81%E5%BD%93%E5%89%8D%E5%A4%A7%E6%95%B0%E6%8D%AE%E8%AE%A1%E7%AE%97%E5%B9%B3%E5%8F%B0%E7%B1%BB%E4%BA%A7%E5%93%81%E7%9A%84%E5%B8%82%E5%9C%BA%E7%8E%B0%E7%8A%B6%E5%92%8C%E5%8F%91%E5%B1%95%E8%B6%8B%E5%8A%BF.md
	https://github.com/leunnldun/interview_internal_reference#127-请分析-maxcompute-产品与分布式技术的关系当前大数据计算平台类产品的市场现状和发展趋势
1.2.8 对大数据平台中的元数据管理是怎么理解的，元数据收集管理体系是怎么样的，会对大数据应用有什么样的影响	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.8%20%E5%AF%B9%E5%A4%A7%E6%95%B0%E6%8D%AE%E5%B9%B3%E5%8F%B0%E4%B8%AD%E7%9A%84%E5%85%83%E6%95%B0%E6%8D%AE%E7%AE%A1%E7%90%86%E6%98%AF%E6%80%8E%E4%B9%88%E7%90%86%E8%A7%A3%E7%9A%84%EF%BC%8C%E5%85%83%E6%95%B0%E6%8D%AE%E6%94%B6%E9%9B%86%E7%AE%A1%E7%90%86%E4%BD%93%E7%B3%BB%E6%98%AF%E6%80%8E%E4%B9%88%E6%A0%B7%E7%9A%84%EF%BC%8C%E4%BC%9A%E5%AF%B9%E5%A4%A7%E6%95%B0%E6%8D%AE%E5%BA%94%E7%94%A8%E6%9C%89%E4%BB%80%E4%B9%88%E6%A0%B7%E7%9A%84%E5%BD%B1%E5%93%8D.md
	https://github.com/leunnldun/interview_internal_reference#128-对大数据平台中的元数据管理是怎么理解的元数据收集管理体系是怎么样的会对大数据应用有什么样的影响
1.2.9 你理解常见如阿里，和友商大数据平台的技术体系差异以及发展趋势和技术瓶颈，在存储和计算两个方面进行概述	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.2.9%20%E4%BD%A0%E7%90%86%E8%A7%A3%E5%B8%B8%E8%A7%81%E5%A6%82%E9%98%BF%E9%87%8C%EF%BC%8C%E5%92%8C%E5%8F%8B%E5%95%86%E5%A4%A7%E6%95%B0%E6%8D%AE%E5%B9%B3%E5%8F%B0%E7%9A%84%E6%8A%80%E6%9C%AF%E4%BD%93%E7%B3%BB%E5%B7%AE%E5%BC%82%E4%BB%A5%E5%8F%8A%E5%8F%91%E5%B1%95%E8%B6%8B%E5%8A%BF%E5%92%8C%E6%8A%80%E6%9C%AF%E7%93%B6%E9%A2%88%EF%BC%8C%E5%9C%A8%E5%AD%98%E5%82%A8%E5%92%8C%E8%AE%A1%E7%AE%97%E4%B8%A4%E4%B8%AA%E6%96%B9%E9%9D%A2%E8%BF%9B%E8%A1%8C%E6%A6%82%E8%BF%B0.md
	https://github.com/leunnldun/interview_internal_reference#129-你理解常见如阿里和友商大数据平台的技术体系差异以及发展趋势和技术瓶颈在存储和计算两个方面进行概述
	https://github.com/leunnldun/interview_internal_reference#130-在云计算大数据处理场景中每天运行着成千上万的任务每个任务都要进行-io-读写存储系统为了更好的服务经常会保证高优先级的任务优先执行当多个作业或用户访问存储系统时如何保证优先级和公平性
1.3.1 最大频率栈	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.3.1%20%E6%9C%80%E5%A4%A7%E9%A2%91%E7%8E%87%E6%A0%88.md
	https://github.com/leunnldun/interview_internal_reference#131-最大频率栈
1.3.2 给定一个链表，删除链表的倒数第N个节点，并且返回链表的头结点	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.3.2%20%E7%BB%99%E5%AE%9A%E4%B8%80%E4%B8%AA%E9%93%BE%E8%A1%A8%EF%BC%8C%E5%88%A0%E9%99%A4%E9%93%BE%E8%A1%A8%E7%9A%84%E5%80%92%E6%95%B0%E7%AC%ACN%E4%B8%AA%E8%8A%82%E7%82%B9%EF%BC%8C%E5%B9%B6%E4%B8%94%E8%BF%94%E5%9B%9E%E9%93%BE%E8%A1%A8%E7%9A%84%E5%A4%B4%E7%BB%93%E7%82%B9.md
	https://github.com/leunnldun/interview_internal_reference#132-给定一个链表删除链表的倒数第n个节点并且返回链表的头结点
1.3.3 如果让你设计一个通用的、支持各种数据库秒级备份和恢复的系统，你会如何设计	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.3.3%20%E5%A6%82%E6%9E%9C%E8%AE%A9%E4%BD%A0%E8%AE%BE%E8%AE%A1%E4%B8%80%E4%B8%AA%E9%80%9A%E7%94%A8%E7%9A%84%E3%80%81%E6%94%AF%E6%8C%81%E5%90%84%E7%A7%8D%E6%95%B0%E6%8D%AE%E5%BA%93%E7%A7%92%E7%BA%A7%E5%A4%87%E4%BB%BD%E5%92%8C%E6%81%A2%E5%A4%8D%E7%9A%84%E7%B3%BB%E7%BB%9F%EF%BC%8C%E4%BD%A0%E4%BC%9A%E5%A6%82%E4%BD%95%E8%AE%BE%E8%AE%A1.md
	https://github.com/leunnldun/interview_internal_reference#133-如果让你设计一个通用的支持各种数据库秒级备份和恢复的系统你会如何设计
1.3.4 如果让你来设计一个支持数据库、NOSQL 和大数据之间数据实时流动的数据流及处理的系统，你会考虑哪些问题？如何设计？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.3.4%20%E5%A6%82%E6%9E%9C%E8%AE%A9%E4%BD%A0%E6%9D%A5%E8%AE%BE%E8%AE%A1%E4%B8%80%E4%B8%AA%E6%94%AF%E6%8C%81%E6%95%B0%E6%8D%AE%E5%BA%93%E3%80%81NOSQL%20%E5%92%8C%E5%A4%A7%E6%95%B0%E6%8D%AE%E4%B9%8B%E9%97%B4%E6%95%B0%E6%8D%AE%E5%AE%9E%E6%97%B6%E6%B5%81%E5%8A%A8%E7%9A%84%E6%95%B0%E6%8D%AE%E6%B5%81%E5%8F%8A%E5%A4%84%E7%90%86%E7%9A%84%E7%B3%BB%E7%BB%9F%EF%BC%8C%E4%BD%A0%E4%BC%9A%E8%80%83%E8%99%91%E5%93%AA%E4%BA%9B%E9%97%AE%E9%A2%98%EF%BC%9F%E5%A6%82%E4%BD%95%E8%AE%BE%E8%AE%A1%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#134-如果让你来设计一个支持数据库nosql-和大数据之间数据实时流动的数据流及处理的系统你会考虑哪些问题如何设计
1.3.5 给定一个整数数组和一个整数，返回两个数组的索引，这两个索引指向的数字的加和等于指定的整数。需要最优的算法，分析算法的空间和时间复杂度	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.3.5%20%E7%BB%99%E5%AE%9A%E4%B8%80%E4%B8%AA%E6%95%B4%E6%95%B0%E6%95%B0%E7%BB%84%E5%92%8C%E4%B8%80%E4%B8%AA%E6%95%B4%E6%95%B0%EF%BC%8C%E8%BF%94%E5%9B%9E%E4%B8%A4%E4%B8%AA%E6%95%B0%E7%BB%84%E7%9A%84%E7%B4%A2%E5%BC%95%EF%BC%8C%E8%BF%99%E4%B8%A4%E4%B8%AA%E7%B4%A2%E5%BC%95%E6%8C%87%E5%90%91%E7%9A%84%E6%95%B0%E5%AD%97%E7%9A%84%E5%8A%A0%E5%92%8C%E7%AD%89%E4%BA%8E%E6%8C%87%E5%AE%9A%E7%9A%84%E6%95%B4%E6%95%B0%E3%80%82%E9%9C%80%E8%A6%81%E6%9C%80%E4%BC%98%E7%9A%84%E7%AE%97%E6%B3%95%EF%BC%8C%E5%88%86%E6%9E%90%E7%AE%97%E6%B3%95%E7%9A%84%E7%A9%BA%E9%97%B4%E5%92%8C%E6%97%B6%E9%97%B4%E5%A4%8D%E6%9D%82%E5%BA%A6.md
	https://github.com/leunnldun/interview_internal_reference#135-给定一个整数数组和一个整数返回两个数组的索引这两个索引指向的数字的加和等于指定的整数需要最优的算法分析算法的空间和时间复杂度
1.3.6 假如给你一个新产品，你将从哪些方面来保障它的质量？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.3.6%20%E5%81%87%E5%A6%82%E7%BB%99%E4%BD%A0%E4%B8%80%E4%B8%AA%E6%96%B0%E4%BA%A7%E5%93%81%EF%BC%8C%E4%BD%A0%E5%B0%86%E4%BB%8E%E5%93%AA%E4%BA%9B%E6%96%B9%E9%9D%A2%E6%9D%A5%E4%BF%9D%E9%9A%9C%E5%AE%83%E7%9A%84%E8%B4%A8%E9%87%8F%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#136-假如给你一个新产品你将从哪些方面来保障它的质量
1.3.7 请评估一下程序的执行结果？	https://github.com/leunnldun/interview_internal_reference/blob/master/01.%E9%98%BF%E9%87%8C%E7%AF%87/1.3.7%20%E8%AF%B7%E8%AF%84%E4%BC%B0%E4%B8%80%E4%B8%8B%E7%A8%8B%E5%BA%8F%E7%9A%84%E6%89%A7%E8%A1%8C%E7%BB%93%E6%9E%9C%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#137-请评估一下程序的执行结果
	https://github.com/leunnldun/interview_internal_reference#华为篇
	https://github.com/leunnldun/interview_internal_reference#210-static有什么用途请至少说明两种
	https://github.com/leunnldun/interview_internal_reference#211-引用与指针有什么区别
	https://github.com/leunnldun/interview_internal_reference#212-描述实时系统的基本特性
	https://github.com/leunnldun/interview_internal_reference#213-全局变量和局部变量在内存中是否有区别如果有是什么区别
	https://github.com/leunnldun/interview_internal_reference#214-什么是平衡二叉树
	https://github.com/leunnldun/interview_internal_reference#215-堆栈溢出一般是由什么原因导致的
	https://github.com/leunnldun/interview_internal_reference#216-什么函数不能声明为虚函数
	https://github.com/leunnldun/interview_internal_reference#217-冒泡排序算法的时间复杂度是什么
	https://github.com/leunnldun/interview_internal_reference#218-写出float-x-与零值比较的if语句
	https://github.com/leunnldun/interview_internal_reference#219-internet采用哪种网络协议该协议的主要层次结构
	https://github.com/leunnldun/interview_internal_reference#220-internet物理地址和ip地址转换采用什么协议
	https://github.com/leunnldun/interview_internal_reference#221-ip地址的编码分为哪俩部分
	https://github.com/leunnldun/interview_internal_reference#222-用户输入mn值从1至n开始顺序循环数数每数到m输出该数值直至全部输出写出c程序
	https://github.com/leunnldun/interview_internal_reference#223-不能做switch的参数类型是
	https://github.com/leunnldun/interview_internal_reference#224-int-ansize其中隐藏着若干0其余非0整数写一个函数int-funcint-a-int-nsize使a把0移至后面非0整数移至数组前面并保持有序返回值为原数据中第一个元素为0的下标
	https://github.com/leunnldun/interview_internal_reference#225-写一个程序-要求功能求出用125这三个数不同个数组合的和为100的组合个数
	https://github.com/leunnldun/interview_internal_reference#226-实现一个函数把一个字符串中的字符从小写转为大写
	https://github.com/leunnldun/interview_internal_reference#227-随机输入一个数判断它是不是对称数回文数如31211232145254不能用字符串库函数
	https://github.com/leunnldun/interview_internal_reference#228-求22000的所有素数有足够的内存要求尽量快
	https://github.com/leunnldun/interview_internal_reference#229-abcd四个进程a向buf里面写数据bcd向buf里面读数据当a写完且bcd都读一次后a才能再写用pv操作实现
	https://github.com/leunnldun/interview_internal_reference#230-将单向链表reverse如abcd变成dcba只能搜索链表一次
	https://github.com/leunnldun/interview_internal_reference#231-将二叉树的两个孩子换位置即左变右右变左不能用递规
	https://github.com/leunnldun/interview_internal_reference#232-以下属于物理层的设备是
	https://github.com/leunnldun/interview_internal_reference#233-在以太网中是根据地址来区分不同的设备的
	https://github.com/leunnldun/interview_internal_reference#234-以下为传输层协议的是
	https://github.com/leunnldun/interview_internal_reference#235-以下对mac地址描述正确的是
	https://github.com/leunnldun/interview_internal_reference#236-以下属于数据链路层功能的是
	https://github.com/leunnldun/interview_internal_reference#237-ieee8023u标准是指
	https://github.com/leunnldun/interview_internal_reference#238-如果要将两计算机通过双绞线直接连接正确的线序是
	https://github.com/leunnldun/interview_internal_reference#239-在v35和v24规程中控制信号rts表示
	https://github.com/leunnldun/interview_internal_reference#240-路由器作为网络互连设备必须具备以下哪些特点
	https://github.com/leunnldun/interview_internal_reference#241-路由器的作用有
	https://github.com/leunnldun/interview_internal_reference#242-调用上一条历史命令的快捷键是
	https://github.com/leunnldun/interview_internal_reference#243-交换机工作在osi七层的哪一层
	https://github.com/leunnldun/interview_internal_reference#244-以下对csmacd描述正确的是
	https://github.com/leunnldun/interview_internal_reference#245-以下对store-andforward描述正确的是
	https://github.com/leunnldun/interview_internal_reference#246-以下对交换机工作方式描述正确的是
	https://github.com/leunnldun/interview_internal_reference#247-vlan的主要作用有
	https://github.com/leunnldun/interview_internal_reference#248-在交换机中用户权限分为几个级别
	https://github.com/leunnldun/interview_internal_reference#249-在路由器的配置过程中查询以s开头所有命令的方法是
	https://github.com/leunnldun/interview_internal_reference#250-第一次配置路由器时可以使用的方法为
	https://github.com/leunnldun/interview_internal_reference#251-在何种状态下可以为路由器改名
	https://github.com/leunnldun/interview_internal_reference#252-某公司申请到一个c类ip地址但要连接6个的子公司最大的一个子公司有-26台计算机每个子公司在一个网段中则子网掩码应设为
	https://github.com/leunnldun/interview_internal_reference#253-与101101229mask-255255255224属于同一网段的主机ip地址是
	https://github.com/leunnldun/interview_internal_reference#254-arp协议的作用是
	https://github.com/leunnldun/interview_internal_reference#255-当路由器接收的ip报文的ttl值等于1时采取的策略是
	https://github.com/leunnldun/interview_internal_reference#256-在netware-网络中客户需要访问某个类型的服务器时首先要发送一个-广播报文来寻找服务器
	https://github.com/leunnldun/interview_internal_reference#257-ipx地址网络地址有-个字节
	https://github.com/leunnldun/interview_internal_reference#258-对于帧中继描述正确的是
	https://github.com/leunnldun/interview_internal_reference#259-对于inverse-arp的描述正确的是
	https://github.com/leunnldun/interview_internal_reference#百度篇
	https://github.com/leunnldun/interview_internal_reference#310-在函数内定义一个字符数组用gets函数输入字符串的时候如果输入越界为什么程序会崩溃
	https://github.com/leunnldun/interview_internal_reference#311-c中引用与指针的区别
	https://github.com/leunnldun/interview_internal_reference#312-cc程序的内存分区
	https://github.com/leunnldun/interview_internal_reference#313-快速排序的思想时间复杂度实现以及优化方法
	https://github.com/leunnldun/interview_internal_reference#314-io模型io多路复用机制
	https://github.com/leunnldun/interview_internal_reference#315-常用的linux命令
	https://github.com/leunnldun/interview_internal_reference#316-c中变量的存储类型有哪些
	https://github.com/leunnldun/interview_internal_reference#317-动态规划的本质
	https://github.com/leunnldun/interview_internal_reference#318-实践中如何优化mysql
	https://github.com/leunnldun/interview_internal_reference#319-什么情况下设置了索引但无法使用
	https://github.com/leunnldun/interview_internal_reference#320-sql语句的优化
	https://github.com/leunnldun/interview_internal_reference#321-数据库索引的底层实现原理和优化
	https://github.com/leunnldun/interview_internal_reference#322-http和https的主要区别
	https://github.com/leunnldun/interview_internal_reference#323-如何设计一个高并发的系统
	https://github.com/leunnldun/interview_internal_reference#324-两条相交的单向链表如何求他们的第一个公共节点
	https://github.com/leunnldun/interview_internal_reference#325-求单向局部循环链表的环入口
	https://github.com/leunnldun/interview_internal_reference#326-ip地址如何在数据库中存储
	https://github.com/leunnldun/interview_internal_reference#327-newdelete和mallocfree的底层实现
	https://github.com/leunnldun/interview_internal_reference#328-overloadoverrideoverwrite的介绍
	https://github.com/leunnldun/interview_internal_reference#329-小端大端机器
	https://github.com/leunnldun/interview_internal_reference#330-守护进程
	https://github.com/leunnldun/interview_internal_reference#331-多线程的优缺点
	https://github.com/leunnldun/interview_internal_reference#332-长连接与短连接
	https://github.com/leunnldun/interview_internal_reference#333-二分图应用于最佳匹配问题游客对房间的满意度之和最大问题
	https://github.com/leunnldun/interview_internal_reference#334-class与struct的区别
	https://github.com/leunnldun/interview_internal_reference#335-虚函数和纯虚函数
	https://github.com/leunnldun/interview_internal_reference#336-menset函数
	https://github.com/leunnldun/interview_internal_reference#337-实现一个函数对一个正整数n算得到1需要的最少操作次数操作规则为如果n为偶数将其除以2如果n为奇数可以加1或减1一直处理下去
	https://github.com/leunnldun/interview_internal_reference#338-找到满足条件的数组
	https://github.com/leunnldun/interview_internal_reference#339-一个大的含有50m个url的记录一个小的含有500个url的记录找出两个记录里相同的url
	https://github.com/leunnldun/interview_internal_reference#340-海量日志数据提取出某日访问百度次数最多的那个ip
	https://github.com/leunnldun/interview_internal_reference#341-有10个文件每个文件1g每个文件的每一行都存放的是用户的query每个文件的query都可能重复如何按照query的频度排序
	https://github.com/leunnldun/interview_internal_reference#342-蚂蚁爬杆问题
	https://github.com/leunnldun/interview_internal_reference#343-当在浏览器中输入一个url后回车后台发生了什么比如输入url后你看到了百度的首页那么这一切是如何发生的呢
	https://github.com/leunnldun/interview_internal_reference#344-判断两棵树是否相等请实现两棵树是否相等的比较相等返回1否则返回其他值并说明算法复杂度
	https://github.com/leunnldun/interview_internal_reference#345-三个警察和三个囚徒的过河问题
	https://github.com/leunnldun/interview_internal_reference#346-从300万字符串中找到最热门的10条
	https://github.com/leunnldun/interview_internal_reference#347-如何找出字典中的兄弟单词给定一个单词a如果通过交换单词中字母的顺序可以得到另外的单词b那么定义b是a的兄弟单词现在给定一个字典用户输入一个单词如何根据字典找出这个单词有多少个兄弟单词
	https://github.com/leunnldun/interview_internal_reference#348-找出数组中出现次数超过一半的数现在有一个数组已知一个数出现的次数超过了一半请用on的复杂度的算法找出这个数
	https://github.com/leunnldun/interview_internal_reference#349-找出被修改过的数字
	https://github.com/leunnldun/interview_internal_reference#350-设计dns服务器中cache的数据结构要求设计一个dns的cache结构要求能够满足每秒5000以上的查询满足ip数据的快速插入查询的速度要快题目还给出了一系列的数据比如站点数总共为5000万ip地址有1000万等等
	https://github.com/leunnldun/interview_internal_reference#351-找出给定字符串对应的序号
	https://github.com/leunnldun/interview_internal_reference#352-找出第k大的数字所在的位置写一段程序找出数组中第k大小的数输出数所在的位置例如24347中第一大的数是7位置在4第二大第三大的数都是4位置在13随便输出哪一个均可
	https://github.com/leunnldun/interview_internal_reference#353-给40亿个不重复的unsigned-int的整数没排过序的然后再给几个数如何快速判断这几个数是否在那40亿个数当中
	https://github.com/leunnldun/interview_internal_reference#354-在一个文件中有10g个整数乱序排列要求找出中位数内存限制为2g
	https://github.com/leunnldun/interview_internal_reference#355-时分秒针在一天之类重合多少次24小时
	https://github.com/leunnldun/interview_internal_reference#356-将多个集合合并成没有交集的集合
	https://github.com/leunnldun/interview_internal_reference#357-平面内有11个点由它们连成48条不同的直线由这些点可连成多少个三角形
	https://github.com/leunnldun/interview_internal_reference#腾讯篇
	https://github.com/leunnldun/interview_internal_reference#java基础
	https://github.com/leunnldun/interview_internal_reference#410-java中的几种基本数据类型是什么各自占用多少字节
	https://github.com/leunnldun/interview_internal_reference#411-string类能被继承吗为什么
	https://github.com/leunnldun/interview_internal_reference#412-stringstringbufferstringbuilder的区别
	https://github.com/leunnldun/interview_internal_reference#413-arraylist和linkedlist有什么区别
	https://github.com/leunnldun/interview_internal_reference#414-讲讲类的实例化顺序比如父类静态数据构造函数字段子类静态数据构造函数字段当new的时候他们的执行顺序
	https://github.com/leunnldun/interview_internal_reference#415-用过哪些map类都有什么区别hashmap是线程安全的吗并发下使用的map是什么他们内部原理分别是什么比如存储方式hashcode扩容默认容量等
	https://github.com/leunnldun/interview_internal_reference#416-java8的concurrenthashmap为什么放弃了分段锁有什么问题吗如果你来设计你如何设计
	https://github.com/leunnldun/interview_internal_reference#417-有没有有顺序的map实现类如果有他们是怎么保证有序的
	https://github.com/leunnldun/interview_internal_reference#418-抽象类和接口的区别类可以继承多个类么接口可以继承多个接口么类可以实现多个接口么
	https://github.com/leunnldun/interview_internal_reference#419-继承和聚合的区别在哪
	https://github.com/leunnldun/interview_internal_reference#420-io模型有哪些讲讲你理解的nio-他和bioaio的区别是啥谈谈reactor模型
	https://github.com/leunnldun/interview_internal_reference#421-反射的原理反射创建类实例的三种方式是什么
	https://github.com/leunnldun/interview_internal_reference#422-反射中classforname和classloader区别-
	https://github.com/leunnldun/interview_internal_reference#423-描述动态代理的几种实现方式分别说出相应的优缺点
	https://github.com/leunnldun/interview_internal_reference#424-动态代理与cglib实现的区别
	https://github.com/leunnldun/interview_internal_reference#425-为什么cglib方式可以对接口实现代理
	https://github.com/leunnldun/interview_internal_reference#426-final的用途
	https://github.com/leunnldun/interview_internal_reference#427-写出三种单例模式实现-
	https://github.com/leunnldun/interview_internal_reference#428-如何在父类中为子类自动完成所有的hashcode和equals实现这么做有何优劣
	https://github.com/leunnldun/interview_internal_reference#429-请结合oo设计理念谈谈访问修饰符publicprivateprotecteddefault在应用设计中的作用
	https://github.com/leunnldun/interview_internal_reference#430-深拷贝和浅拷贝区别
	https://github.com/leunnldun/interview_internal_reference#431-数组和链表数据结构描述各自的时间复杂度
	https://github.com/leunnldun/interview_internal_reference#432-error和exception的区别checkedexceptionruntimeexception的区别
	https://github.com/leunnldun/interview_internal_reference#433-请列出5个运行时异常
	https://github.com/leunnldun/interview_internal_reference#434-在自己的代码中如果创建一个javalangstring类这个类是否可以被类加载器加载为什么
	https://github.com/leunnldun/interview_internal_reference#435-说一说你对javalangobject对象中hashcode和equals方法的理解在什么场景下需要重新实现这两个方法
	https://github.com/leunnldun/interview_internal_reference#436-在jdk15中引入了泛型泛型的存在是用来解决什么问题
	https://github.com/leunnldun/interview_internal_reference#437-这样的ahashcode-有什么用与aequalsb有什么关系
	https://github.com/leunnldun/interview_internal_reference#438-有没有可能2个不相等的对象有相同的hashcode
	https://github.com/leunnldun/interview_internal_reference#439-java中的hashset内部是如何工作的
	https://github.com/leunnldun/interview_internal_reference#440-什么是序列化怎么序列化为什么序列化反序列化会遇到什么问题如何解决
	https://github.com/leunnldun/interview_internal_reference#441-java8的新特性
	https://github.com/leunnldun/interview_internal_reference#jvm
	https://github.com/leunnldun/interview_internal_reference#442-什么情况下会发生栈内存溢出
	https://github.com/leunnldun/interview_internal_reference#443-jvm的内存结构eden和survivor比例
	https://github.com/leunnldun/interview_internal_reference#444-jvm内存为什么要分成新生代老年代持久代新生代中为什么要分为eden和survivor
	https://github.com/leunnldun/interview_internal_reference#445-jvm中一次完整的gc流程是怎样的对象如何晋升到老年代说说你知道的几种主要的jvm参数
	https://github.com/leunnldun/interview_internal_reference#446-你知道哪几种垃圾收集器各自的优缺点重点讲下cms和g1包括原理流程优缺点
	https://github.com/leunnldun/interview_internal_reference#447-垃圾回收算法的实现原理
	https://github.com/leunnldun/interview_internal_reference#448-当出现了内存溢出你怎么排错
	https://github.com/leunnldun/interview_internal_reference#449-jvm内存模型的相关知识了解多少比如重排序内存屏障happen-before主内存工作内存等
	https://github.com/leunnldun/interview_internal_reference#450-简单说说你了解的类加载器可以打破双亲委派么怎么打破
	https://github.com/leunnldun/interview_internal_reference#451-讲讲java的反射机制
	https://github.com/leunnldun/interview_internal_reference#452-你们线上应用的jvm参数有哪些
	https://github.com/leunnldun/interview_internal_reference#453-g1和cms区别吞吐量优先和响应优先的垃圾收集器选择
	https://github.com/leunnldun/interview_internal_reference#454-怎么打出线程栈信息
	https://github.com/leunnldun/interview_internal_reference#开源框架
	https://github.com/leunnldun/interview_internal_reference#455-简单讲讲tomcat结构以及其类加载器流程线程模型等
	https://github.com/leunnldun/interview_internal_reference#456-tomcat如何调优涉及哪些参数-
	https://github.com/leunnldun/interview_internal_reference#457-讲讲spring加载流程
	https://github.com/leunnldun/interview_internal_reference#458-spring-aop的实现原理
	https://github.com/leunnldun/interview_internal_reference#459-讲讲spring事务的传播属性
	https://github.com/leunnldun/interview_internal_reference#460-spring如何管理事务的
	https://github.com/leunnldun/interview_internal_reference#461-spring怎么配置事务具体说出一些关键的xml-元素
	https://github.com/leunnldun/interview_internal_reference#462-说说你对spring的理解非单例注入的原理它的生命周期循环注入的原理aop的实现原理说说aop中的几个术语它们是怎么相互工作的
	https://github.com/leunnldun/interview_internal_reference#463-springmvc-中dispatcherservlet初始化过程
	https://github.com/leunnldun/interview_internal_reference#464-netty的线程模型netty如何基于reactor模型上实现的
	https://github.com/leunnldun/interview_internal_reference#465-为什么选择netty
	https://github.com/leunnldun/interview_internal_reference#466-什么是tcp粘包拆包解决方式是什么
	https://github.com/leunnldun/interview_internal_reference#467-netty的fashwheeltimer的用法实现原理是否出现过调用不够准时怎么解决
	https://github.com/leunnldun/interview_internal_reference#468-netty的心跳处理在弱网下怎么办
	https://github.com/leunnldun/interview_internal_reference#469-netty的通讯协议是什么样的
	https://github.com/leunnldun/interview_internal_reference#470-springmvc用到的注解作用是什么原理
	https://github.com/leunnldun/interview_internal_reference#471-springboot启动机制
	https://github.com/leunnldun/interview_internal_reference#操作系统
	https://github.com/leunnldun/interview_internal_reference#472-linux系统下你关注过哪些内核参数说说你知道的
	https://github.com/leunnldun/interview_internal_reference#473-linux下io模型有几种各自的含义是什么
	https://github.com/leunnldun/interview_internal_reference#474-epoll和poll有什么区别
	https://github.com/leunnldun/interview_internal_reference#475-平时用到哪些linux命令
	https://github.com/leunnldun/interview_internal_reference#476-用一行命令查看文件的最后五行
	https://github.com/leunnldun/interview_internal_reference#477-用一行命令输出正在运行的java进程
	https://github.com/leunnldun/interview_internal_reference#478-介绍下你理解的操作系统中线程切换过程
	https://github.com/leunnldun/interview_internal_reference#479-进程和线程的区别
	https://github.com/leunnldun/interview_internal_reference#480-top-命令之后有哪些内容有什么作用
	https://github.com/leunnldun/interview_internal_reference#481-线上cpu爆高请问你如何找到问题所在
	https://github.com/leunnldun/interview_internal_reference#美团篇
	https://github.com/leunnldun/interview_internal_reference#510-java虚拟机内存模型
	https://github.com/leunnldun/interview_internal_reference#511-内存溢出一般发生在哪个区永久代会不会导致内存溢出
	https://github.com/leunnldun/interview_internal_reference#512-动态加载类的框架了解哪些
	https://github.com/leunnldun/interview_internal_reference#513-动态代理一般有哪几种实现方式动态代理的应用场景有哪些
	https://github.com/leunnldun/interview_internal_reference#514-栈会不会溢出栈溢出一般抛什么异常jvm在哪里设置栈的大小设置的参数是什么
	https://github.com/leunnldun/interview_internal_reference#515-用过哪些命令查看jvm的状态堆栈信息
	https://github.com/leunnldun/interview_internal_reference#516-jvm的垃圾回收机制
	https://github.com/leunnldun/interview_internal_reference#517-java类加载机制如何实现自定义类加载器findclass与loadclass的区别
	https://github.com/leunnldun/interview_internal_reference#518-stringstringbufferstringbuilder的区别对应的使用场景
	https://github.com/leunnldun/interview_internal_reference#519-如何实现不可变的类
	https://github.com/leunnldun/interview_internal_reference#520-浅复制和深复制怎样实现深复制
	https://github.com/leunnldun/interview_internal_reference#521-hashmaphashtableconcurrenthashmap的区别
	https://github.com/leunnldun/interview_internal_reference#522-cas是一种什么样的同步机制
	https://github.com/leunnldun/interview_internal_reference#523-nio的原理包括哪几个组件
	https://github.com/leunnldun/interview_internal_reference#524-简单介绍一下java的反射机制反射在哪些地方有应用场景
	https://github.com/leunnldun/interview_internal_reference#525-spring加载bean的流程
	https://github.com/leunnldun/interview_internal_reference#526-java线程池线程池构造函数的几个参数含义keepalivetime解释一下
	https://github.com/leunnldun/interview_internal_reference#527-一个接口要去调用另外5个接口每一个接口都会返回数据给这个调用接口调用接口要对数据进行合并并返回给上层这样一种场景可能用到并发包下的哪些类你会怎么去实现这样的业务场景
	https://github.com/leunnldun/interview_internal_reference#528-countdownlatch和cyclicbarrier的区别
	https://github.com/leunnldun/interview_internal_reference#529-线程加锁有哪些方式synchronized和lock的区别
	https://github.com/leunnldun/interview_internal_reference#530-volatile关键字的作用为什么使用atomiclong而不使用longatomiclong的底层是怎么实现的
	https://github.com/leunnldun/interview_internal_reference#531-mysql的存储引擎有哪几种
	https://github.com/leunnldun/interview_internal_reference#532-sql优化有哪些着手点组合索引的最左前缀原则的含义
	https://github.com/leunnldun/interview_internal_reference#533-springmvc处理请求的流程
	https://github.com/leunnldun/interview_internal_reference#534-spring的事务怎么使用事务回滚自定义异常
	https://github.com/leunnldun/interview_internal_reference#535-脏读幻读
	https://github.com/leunnldun/interview_internal_reference#536-tcp四次挥手的过程time_wait为什么至少设置两倍的msl时间
	https://github.com/leunnldun/interview_internal_reference#537-get和post请求的区别
	https://github.com/leunnldun/interview_internal_reference#538-cookie和session的请求
	https://github.com/leunnldun/interview_internal_reference#539-了解哪些开源的中间件缓存消息分布式框架
	https://github.com/leunnldun/interview_internal_reference#540-用到过哪些设计模式单例模式的实现
	https://github.com/leunnldun/interview_internal_reference#541-数据库的事务实现原理操作过程如何做到事物之间的独立性等问题
	https://github.com/leunnldun/interview_internal_reference#542-数据库的脏读幻读不可重复读出现的原因原理解决办法
	https://github.com/leunnldun/interview_internal_reference#543-数据库的隔离级别mvcc
	https://github.com/leunnldun/interview_internal_reference#544-乐观锁悲观锁互斥锁读写锁的原理实现与区别
	https://github.com/leunnldun/interview_internal_reference#545-线程的生命周期
	https://github.com/leunnldun/interview_internal_reference#546-一致性hash算法原理与应用
	https://github.com/leunnldun/interview_internal_reference#547-cap原则
	https://github.com/leunnldun/interview_internal_reference#548-cas操作
	https://github.com/leunnldun/interview_internal_reference#549-分布式raft算法
	https://github.com/leunnldun/interview_internal_reference#头条篇
	https://github.com/leunnldun/interview_internal_reference#610-5个人去一个海岛寻宝最后一共找到了100枚金币他们约定了一个分配方案
	https://github.com/leunnldun/interview_internal_reference#611-给你一个有序整数数组数组中的数可以是正数负数零请实现一个函数这个函数返回一个整数返回这个数组所有数的平方值中有多少种不同的取值
	https://github.com/leunnldun/interview_internal_reference#612-一个环有10个节点编号0-9从0点出发走n步又能回到0点共有多少种走法
	https://github.com/leunnldun/interview_internal_reference#613-一个乱序数组求第k大的数排序方式使用字典序
	https://github.com/leunnldun/interview_internal_reference#614-一棵二叉树求最大通路长度即最大左右子树高度之和
	https://github.com/leunnldun/interview_internal_reference#615-进程和线程的区别使用线程真的能节省时间
	https://github.com/leunnldun/interview_internal_reference#616-go协程的调度方式使用协程真的能节省时间
	https://github.com/leunnldun/interview_internal_reference#617-水平触发边沿触发的区别在边沿触发下一个socket有500的数据已读取200然后不再处理是不是剩下的300就永远无法读取
	https://github.com/leunnldun/interview_internal_reference#618-有函数如下输入1返回什么
	https://github.com/leunnldun/interview_internal_reference#619-设计http协议a端发送-aaaa至少让b端知道aaaa已发送完成
	https://github.com/leunnldun/interview_internal_reference#620-流量总入口为api_gatewayapi_gateway挂了会导致全部挂挂用什么机制增大可用性
	https://github.com/leunnldun/interview_internal_reference#621-mysql为什么要用b树不用平衡二叉树做索引结构
	https://github.com/leunnldun/interview_internal_reference#622-创建数据库索引应该怎么考虑
	https://github.com/leunnldun/interview_internal_reference#623-使用int-做primary-key和使用string-有什么优劣
	https://github.com/leunnldun/interview_internal_reference#624-数据库分表的方法
	https://github.com/leunnldun/interview_internal_reference#625-表结构订单纪录如下写一个语句求卖的最好的-top-10-product_id
	https://github.com/leunnldun/interview_internal_reference#626-微服务a服务请求b服务b1接口b1接口又请求a服务a2接口会不会有问题
	https://github.com/leunnldun/interview_internal_reference#627-不使用高级工具只使用linux自带的工具你会如何debug
	https://github.com/leunnldun/interview_internal_reference#628-如何预估一个mysql语句的性能
	https://github.com/leunnldun/interview_internal_reference#629-go函数中返回值未命名发生了panic但是在函数内recover了函数返回什么值
	https://github.com/leunnldun/interview_internal_reference#630-socket中在tcp协议层面数据分为10个报文发放1-7次很顺利第8次丢失这次通信一定失败吗如果第8次数据会重发那在接收端是不是先读取到1-7次的数据然后读取到8-10次的数据还是9-10次的数据会先到达
	https://github.com/leunnldun/interview_internal_reference#631-free--hbuffers-和cached有什么不同
	https://github.com/leunnldun/interview_internal_reference#632-后台进程有什么特点如果要你设计一个进程是后台进程你会考虑什么
	https://github.com/leunnldun/interview_internal_reference#633-僵尸进程是什么如果产生一个僵尸进程如何查找僵尸进程
	https://github.com/leunnldun/interview_internal_reference#634-孤儿进程是什么
	https://github.com/leunnldun/interview_internal_reference#635-一个进程有20个线程在某个线程中调用fork新的进程会有20个线程吗
	https://github.com/leunnldun/interview_internal_reference#636-tcpip-流量控制和拥塞控制
	https://github.com/leunnldun/interview_internal_reference#637-301302有什么区别应用上有什么异同
	https://github.com/leunnldun/interview_internal_reference#638-50x相关错误码的内涵是什么
	https://github.com/leunnldun/interview_internal_reference#639-close-wait和time-wait是什么如何排查有什么意义
	https://github.com/leunnldun/interview_internal_reference#640-http-req和resp的中数据有哪些
	https://github.com/leunnldun/interview_internal_reference#641-什么是连接的半打开半关闭状态
	https://github.com/leunnldun/interview_internal_reference#642-假如一个业务依赖单点redis此redis故障将导致业务不可用如何改进
	https://github.com/leunnldun/interview_internal_reference#643-redis-sharding有哪些做法
	https://github.com/leunnldun/interview_internal_reference#644-当大量数据要求用redis保存单机单点难以满足需要设计换寻找一个负载均衡的方案
	https://github.com/leunnldun/interview_internal_reference#645-当redis-采用hash做sharding现在有8个节点负载方案是-pos--hashkey--8然后保存在pos节点上这样做有什么好处坏处当8个节点要扩充到10个节点应该怎么办有什么更方便扩充的方案吗一致性hash-presharding
	https://github.com/leunnldun/interview_internal_reference#646-如何保证redis和数据库数据的一致性比如用户名既保存在数据库又保存在redis做缓存有如下操作-update_dbusername-update_redisusername但是执行update_db后故障update_redis没有执行有什么简单办法解决这个问题
	https://github.com/leunnldun/interview_internal_reference#滴滴篇
	https://github.com/leunnldun/interview_internal_reference#710-b树b-树的区别
	https://github.com/leunnldun/interview_internal_reference#711-数据库隔离级别幻读和不可重复读的区别
	https://github.com/leunnldun/interview_internal_reference#712-有hell-well-hello-world等字符串组现在问能否拼接成helloworld代码实现
	https://github.com/leunnldun/interview_internal_reference#713-快排算法实现
	https://github.com/leunnldun/interview_internal_reference#714-线程安全的单例模式
	https://github.com/leunnldun/interview_internal_reference#715-25匹马赛跑有一个赛场只有五个赛道没有计时器只能通过目测来记录快慢求出第三3快的马要多少场比赛
	https://github.com/leunnldun/interview_internal_reference#716-kmp算法next数组的求解思路
	https://github.com/leunnldun/interview_internal_reference#717-数组中有三个数字出现超过34求这三个数字
	https://github.com/leunnldun/interview_internal_reference#718-1到n2个数组中缺了两个数如何用on时间o1空间找到这两个数字
	https://github.com/leunnldun/interview_internal_reference#719-一条线段长为1随机选两个点将改线段分为三段三段能成三角形的概率是多少
	https://github.com/leunnldun/interview_internal_reference#720-有一个教授他三个学生脑袋背后分别各写了一个数字其中一个数字是另外两个数字的和经过几轮后有一个学生猜出了自己的数字请问是什么原因
	https://github.com/leunnldun/interview_internal_reference#721-b树做索引时b树通常高度为多少层要参考哪些条件
	https://github.com/leunnldun/interview_internal_reference#京东篇
	https://github.com/leunnldun/interview_internal_reference#810-一般sql注入怎么发现触点的从源码阐述sqlmap如何测试注入点的
	https://github.com/leunnldun/interview_internal_reference#811-masscan扫描端口时靠什么检测为什么这么快-请详述
	https://github.com/leunnldun/interview_internal_reference#812-你写过哪些小工具你为你使用过的工具做过什么修改
	https://github.com/leunnldun/interview_internal_reference#813-如何提高采用python编写的扫描速度谈谈对gil锁的了解
	https://github.com/leunnldun/interview_internal_reference#814-你觉得你发现的那个漏洞影响比较大
	https://github.com/leunnldun/interview_internal_reference#815-常见的web漏洞有哪些
	https://github.com/leunnldun/interview_internal_reference#816-有没有玩过硬件安全研究程度如何
	https://github.com/leunnldun/interview_internal_reference#817-反爬虫如果是你如何进行反爬虫如何绕过反爬措施-使用无头浏览器被检测到了如何绕过
	https://github.com/leunnldun/interview_internal_reference#818-nmap扫描如何进行扫描发包与协议握手和不握手哪些协议握手哪些不握手-如何不直接接触目标服务器探测对方端口是否开放
	https://github.com/leunnldun/interview_internal_reference#819-有没有自己编写过yara扫描模块如果要解决扫描k1v1-k2v2-k3v3-保证同时在k1中的v1里出现特定值k2中出现v2特定值以及k3v3怎么实现
	https://github.com/leunnldun/interview_internal_reference#820-xss什么原理如何自己实现一个beef类似的xss平台-既然这样实现面临的跨域如何解决
	https://github.com/leunnldun/interview_internal_reference#821-ip-频率限制-ip信誉度模型
	https://github.com/leunnldun/interview_internal_reference#822-sctp协议是什么如何使用-sctp-优化网络
	https://github.com/leunnldun/interview_internal_reference#mysql篇
9.1.0 主键超键候选键外键	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.0%20%E4%B8%BB%E9%94%AE%20%E8%B6%85%E9%94%AE%20%E5%80%99%E9%80%89%E9%94%AE%20%E5%A4%96%E9%94%AE.md
	https://github.com/leunnldun/interview_internal_reference#910-主键-超键-候选键-外键
9.1.1 数据库事务的四个特性及含义	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.1%20%E6%95%B0%E6%8D%AE%E5%BA%93%E4%BA%8B%E5%8A%A1%E7%9A%84%E5%9B%9B%E4%B8%AA%E7%89%B9%E6%80%A7%E5%8F%8A%E5%90%AB%E4%B9%89.md
	https://github.com/leunnldun/interview_internal_reference#911-数据库事务的四个特性及含义
9.1.2 视图的作用，视图可以更改么？	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.2%20%E8%A7%86%E5%9B%BE%E7%9A%84%E4%BD%9C%E7%94%A8%EF%BC%8C%E8%A7%86%E5%9B%BE%E5%8F%AF%E4%BB%A5%E6%9B%B4%E6%94%B9%E4%B9%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#912-视图的作用视图可以更改么
9.1.3 drop,delete与truncate的区别	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.3%20drop%2Cdelete%E4%B8%8Etruncate%E7%9A%84%E5%8C%BA%E5%88%AB.md
	https://github.com/leunnldun/interview_internal_reference#913-dropdelete与truncate的区别
9.1.4 索引的工作原理及其种类	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.4%20%E7%B4%A2%E5%BC%95%E7%9A%84%E5%B7%A5%E4%BD%9C%E5%8E%9F%E7%90%86%E5%8F%8A%E5%85%B6%E7%A7%8D%E7%B1%BB.md
	https://github.com/leunnldun/interview_internal_reference#914-索引的工作原理及其种类
9.1.5 连接的种类	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.5%20%E8%BF%9E%E6%8E%A5%E7%9A%84%E7%A7%8D%E7%B1%BB.md
	https://github.com/leunnldun/interview_internal_reference#915-连接的种类
9.1.6 数据库范式	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.6%20%E6%95%B0%E6%8D%AE%E5%BA%93%E8%8C%83%E5%BC%8F.md
	https://github.com/leunnldun/interview_internal_reference#916-数据库范式
9.1.7 数据库优化的思路	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.7%20%E6%95%B0%E6%8D%AE%E5%BA%93%E4%BC%98%E5%8C%96%E7%9A%84%E6%80%9D%E8%B7%AF.md
	https://github.com/leunnldun/interview_internal_reference#917-数据库优化的思路
9.1.8 存储过程与触发器的区别	https://github.com/leunnldun/interview_internal_reference/blob/master/09.MySQL%E7%AF%87/9.1.8%20%E5%AD%98%E5%82%A8%E8%BF%87%E7%A8%8B%E4%B8%8E%E8%A7%A6%E5%8F%91%E5%99%A8%E7%9A%84%E5%8C%BA%E5%88%AB.md
	https://github.com/leunnldun/interview_internal_reference#918-存储过程与触发器的区别
	https://github.com/leunnldun/interview_internal_reference#redis篇
10.1.0 使用Redis有哪些好处？	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.0%20%E4%BD%BF%E7%94%A8Redis%E6%9C%89%E5%93%AA%E4%BA%9B%E5%A5%BD%E5%A4%84%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1010-使用redis有哪些好处
10.1.1 redis相比memcached有哪些优势？	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.1%20redis%E7%9B%B8%E6%AF%94memcached%E6%9C%89%E5%93%AA%E4%BA%9B%E4%BC%98%E5%8A%BF%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1011-redis相比memcached有哪些优势
10.1.2 redis常见性能问题和解决方案	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.2%20redis%E5%B8%B8%E8%A7%81%E6%80%A7%E8%83%BD%E9%97%AE%E9%A2%98%E5%92%8C%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88.md
	https://github.com/leunnldun/interview_internal_reference#1012-redis常见性能问题和解决方案
10.1.3 MySQL里有2000w数据，redis中只存20w的数据，如何保证redis中的数据都是热点数据	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.3%20MySQL%E9%87%8C%E6%9C%892000w%E6%95%B0%E6%8D%AE%EF%BC%8Credis%E4%B8%AD%E5%8F%AA%E5%AD%9820w%E7%9A%84%E6%95%B0%E6%8D%AE%EF%BC%8C%E5%A6%82%E4%BD%95%E4%BF%9D%E8%AF%81redis%E4%B8%AD%E7%9A%84%E6%95%B0%E6%8D%AE%E9%83%BD%E6%98%AF%E7%83%AD%E7%82%B9%E6%95%B0%E6%8D%AE.md
	https://github.com/leunnldun/interview_internal_reference#1013-mysql里有2000w数据redis中只存20w的数据如何保证redis中的数据都是热点数据
10.1.4 Memcache与Redis的区别都有哪些？	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.4%20Memcache%E4%B8%8ERedis%E7%9A%84%E5%8C%BA%E5%88%AB%E9%83%BD%E6%9C%89%E5%93%AA%E4%BA%9B%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1014-memcache与redis的区别都有哪些
10.1.5 Redis 常见的性能问题都有哪些？如何解决？	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.5%20Redis%20%E5%B8%B8%E8%A7%81%E7%9A%84%E6%80%A7%E8%83%BD%E9%97%AE%E9%A2%98%E9%83%BD%E6%9C%89%E5%93%AA%E4%BA%9B%EF%BC%9F%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1015-redis-常见的性能问题都有哪些如何解决
	https://github.com/leunnldun/interview_internal_reference#1016-redis-最适合的场景
10.1.7 Redis的同步机制了解么？	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.7%20Redis%E7%9A%84%E5%90%8C%E6%AD%A5%E6%9C%BA%E5%88%B6%E4%BA%86%E8%A7%A3%E4%B9%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1017-redis的同步机制了解么
10.1.8 是否使用过Redis集群，集群的原理是什么？	https://github.com/leunnldun/interview_internal_reference/blob/master/10.Redis%E7%AF%87/10.1.8%20%E6%98%AF%E5%90%A6%E4%BD%BF%E7%94%A8%E8%BF%87Redis%E9%9B%86%E7%BE%A4%EF%BC%8C%E9%9B%86%E7%BE%A4%E7%9A%84%E5%8E%9F%E7%90%86%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1018-是否使用过redis集群集群的原理是什么
	https://github.com/leunnldun/interview_internal_reference#1019-redis集群如何保证一致性
	https://github.com/leunnldun/interview_internal_reference#mongodb篇
11.1.0 什么是MongoDB？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.0%20%E4%BB%80%E4%B9%88%E6%98%AFMongoDB%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1110-什么是mongodb
11.1.1 MongoDB是由哪种语言写的？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.1%20MongoDB%E6%98%AF%E7%94%B1%E5%93%AA%E7%A7%8D%E8%AF%AD%E8%A8%80%E5%86%99%E7%9A%84%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1111-mongodb是由哪种语言写的
11.1.2 MongoDB的优势有哪些？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.2%20MongoDB%E7%9A%84%E4%BC%98%E5%8A%BF%E6%9C%89%E5%93%AA%E4%BA%9B%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1112-mongodb的优势有哪些
11.1.3 什么是数据库？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.3%20%E4%BB%80%E4%B9%88%E6%98%AF%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1113-什么是数据库
11.1.4 什么是集合？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.4%20%E4%BB%80%E4%B9%88%E6%98%AF%E9%9B%86%E5%90%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1114-什么是集合
11.1.5 什么是文档？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.5%20%E4%BB%80%E4%B9%88%E6%98%AF%E6%96%87%E6%A1%A3%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1115-什么是文档
11.1.6 MongoDB和关系型数据库术语对比图	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.6%20MongoDB%E5%92%8C%E5%85%B3%E7%B3%BB%E5%9E%8B%E6%95%B0%E6%8D%AE%E5%BA%93%E6%9C%AF%E8%AF%AD%E5%AF%B9%E6%AF%94%E5%9B%BE.md
	https://github.com/leunnldun/interview_internal_reference#1116-mongodb和关系型数据库术语对比图
11.1.7 什么是“mongod”？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.7%20%E4%BB%80%E4%B9%88%E6%98%AF%E2%80%9Cmongod%E2%80%9D%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1117-什么是mongod
11.1.8 “mongod”参数有什么？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.8%20%E2%80%9Cmongod%E2%80%9D%E5%8F%82%E6%95%B0%E6%9C%89%E4%BB%80%E4%B9%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1118-mongod参数有什么
11.1.9 什么是“mongo”？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.1.9%20%E4%BB%80%E4%B9%88%E6%98%AF%E2%80%9Cmongo%E2%80%9D%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1119-什么是mongo
11.2.0 MongoDB哪个命令可以切换数据库？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.0%20MongoDB%E5%93%AA%E4%B8%AA%E5%91%BD%E4%BB%A4%E5%8F%AF%E4%BB%A5%E5%88%87%E6%8D%A2%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1120-mongodb哪个命令可以切换数据库
11.2.1 什么是非关系型数据库？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.1%20%E4%BB%80%E4%B9%88%E6%98%AF%E9%9D%9E%E5%85%B3%E7%B3%BB%E5%9E%8B%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1121-什么是非关系型数据库
11.2.2 非关系型数据库有哪些类型？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.2%20%E9%9D%9E%E5%85%B3%E7%B3%BB%E5%9E%8B%E6%95%B0%E6%8D%AE%E5%BA%93%E6%9C%89%E5%93%AA%E4%BA%9B%E7%B1%BB%E5%9E%8B%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1122-非关系型数据库有哪些类型
11.2.3 为什么用MOngoDB？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.3%20%E4%B8%BA%E4%BB%80%E4%B9%88%E7%94%A8MOngoDB%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1123-为什么用mongodb
11.2.4 在哪些场景使用MongoDB？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.4%20%E5%9C%A8%E5%93%AA%E4%BA%9B%E5%9C%BA%E6%99%AF%E4%BD%BF%E7%94%A8MongoDB%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1124-在哪些场景使用mongodb
	https://github.com/leunnldun/interview_internal_reference#1125-mongodb中的命名空间是什么意思
	https://github.com/leunnldun/interview_internal_reference#1126-哪些语言支持mongodb
11.2.7 在MongoDB中如何创建一个新的数据库？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.7%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E5%88%9B%E5%BB%BA%E4%B8%80%E4%B8%AA%E6%96%B0%E7%9A%84%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1127-在mongodb中如何创建一个新的数据库
11.2.8 在MongoDB中如何查看数据库列表？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.8%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E6%9F%A5%E7%9C%8B%E6%95%B0%E6%8D%AE%E5%BA%93%E5%88%97%E8%A1%A8%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1128-在mongodb中如何查看数据库列表
11.2.9 MongoDB中的分片是什么意思？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.2.9%20MongoDB%E4%B8%AD%E7%9A%84%E5%88%86%E7%89%87%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1129-mongodb中的分片是什么意思
11.3.0 如何查看使用MongoDB的连接？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.0%20%E5%A6%82%E4%BD%95%E6%9F%A5%E7%9C%8B%E4%BD%BF%E7%94%A8MongoDB%E7%9A%84%E8%BF%9E%E6%8E%A5%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1130-如何查看使用mongodb的连接
11.3.1 什么是复制？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.1%20%E4%BB%80%E4%B9%88%E6%98%AF%E5%A4%8D%E5%88%B6%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1131-什么是复制
11.3.2 在MongoDB中如何在集合中插入一个文档？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.2%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E5%9C%A8%E9%9B%86%E5%90%88%E4%B8%AD%E6%8F%92%E5%85%A5%E4%B8%80%E4%B8%AA%E6%96%87%E6%A1%A3%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1132-在mongodb中如何在集合中插入一个文档
11.3.3 在MongoDB中如何除去一个数据库？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.3%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E9%99%A4%E5%8E%BB%E4%B8%80%E4%B8%AA%E6%95%B0%E6%8D%AE%E5%BA%93%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1133-在mongodb中如何除去一个数据库
11.3.4 在MongoDB中如何创建一个集合？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.4%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E5%88%9B%E5%BB%BA%E4%B8%80%E4%B8%AA%E9%9B%86%E5%90%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1134-在mongodb中如何创建一个集合
11.3.5 在MongoDB中如何查看一个已经创建的集合？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.5%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E6%9F%A5%E7%9C%8B%E4%B8%80%E4%B8%AA%E5%B7%B2%E7%BB%8F%E5%88%9B%E5%BB%BA%E7%9A%84%E9%9B%86%E5%90%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1135-在mongodb中如何查看一个已经创建的集合
11.3.6 在MongoDB中如何删除一个集合？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.6%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E5%88%A0%E9%99%A4%E4%B8%80%E4%B8%AA%E9%9B%86%E5%90%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1136-在mongodb中如何删除一个集合
11.3.7 为什么要在MongoDB中使用分析器？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.7%20%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E5%9C%A8MongoDB%E4%B8%AD%E4%BD%BF%E7%94%A8%E5%88%86%E6%9E%90%E5%99%A8%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1137-为什么要在mongodb中使用分析器
11.3.8 MongoDB支持主键外键关系吗？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.8%20MongoDB%E6%94%AF%E6%8C%81%E4%B8%BB%E9%94%AE%E5%A4%96%E9%94%AE%E5%85%B3%E7%B3%BB%E5%90%97%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1138-mongodb支持主键外键关系吗
11.3.9 MongoDB支持哪些数据类型？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.3.9%20MongoDB%E6%94%AF%E6%8C%81%E5%93%AA%E4%BA%9B%E6%95%B0%E6%8D%AE%E7%B1%BB%E5%9E%8B%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1139-mongodb支持哪些数据类型
	https://github.com/leunnldun/interview_internal_reference#1140-为什么要在mongodb中用code数据类型
	https://github.com/leunnldun/interview_internal_reference#1141-为什么要在mongodb中用regular-expression数据类型
	https://github.com/leunnldun/interview_internal_reference#1142-为什么在mongodb中使用object-id数据类型
11.4.3 如何在集合中插入一个文档？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.4.3%20%E5%A6%82%E4%BD%95%E5%9C%A8%E9%9B%86%E5%90%88%E4%B8%AD%E6%8F%92%E5%85%A5%E4%B8%80%E4%B8%AA%E6%96%87%E6%A1%A3%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1143-如何在集合中插入一个文档
11.4.4 “ObjectID”有哪些部分组成？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.4.4%20%E2%80%9CObjectID%E2%80%9D%E6%9C%89%E5%93%AA%E4%BA%9B%E9%83%A8%E5%88%86%E7%BB%84%E6%88%90%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1144-objectid有哪些部分组成
11.4.5 在MongoDb中什么是索引？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.4.5%20%E5%9C%A8MongoDb%E4%B8%AD%E4%BB%80%E4%B9%88%E6%98%AF%E7%B4%A2%E5%BC%95%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1145-在mongodb中什么是索引
11.4.6 如何添加索引？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.4.6%20%E5%A6%82%E4%BD%95%E6%B7%BB%E5%8A%A0%E7%B4%A2%E5%BC%95%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1146-如何添加索引
11.4.7 MongoDB有哪些可替代产品？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.4.7%20MongoDB%E6%9C%89%E5%93%AA%E4%BA%9B%E5%8F%AF%E6%9B%BF%E4%BB%A3%E4%BA%A7%E5%93%81%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1147-mongodb有哪些可替代产品
11.4.8 如何查询集合中的文档？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.4.8%20%E5%A6%82%E4%BD%95%E6%9F%A5%E8%AF%A2%E9%9B%86%E5%90%88%E4%B8%AD%E7%9A%84%E6%96%87%E6%A1%A3%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1148-如何查询集合中的文档
11.4.9 用什么方法可以格式化输出结果？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.4.9%20%E7%94%A8%E4%BB%80%E4%B9%88%E6%96%B9%E6%B3%95%E5%8F%AF%E4%BB%A5%E6%A0%BC%E5%BC%8F%E5%8C%96%E8%BE%93%E5%87%BA%E7%BB%93%E6%9E%9C%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1149-用什么方法可以格式化输出结果
	https://github.com/leunnldun/interview_internal_reference#1150-如何使用and或or条件循环查询集合中的文档
11.5.1 在MongoDB中如何更新数据？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.5.1%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E6%9B%B4%E6%96%B0%E6%95%B0%E6%8D%AE%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1151-在mongodb中如何更新数据
11.5.2 如何删除文档？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.5.2%20%E5%A6%82%E4%BD%95%E5%88%A0%E9%99%A4%E6%96%87%E6%A1%A3%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1152-如何删除文档
11.5.3 在MongoDB中如何排序？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.5.3%20%E5%9C%A8MongoDB%E4%B8%AD%E5%A6%82%E4%BD%95%E6%8E%92%E5%BA%8F%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1153-在mongodb中如何排序
11.5.4 什么是聚合？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.5.4%20%E4%BB%80%E4%B9%88%E6%98%AF%E8%81%9A%E5%90%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1154-什么是聚合
11.5.5 在MongoDB中什么是副本集？	https://github.com/leunnldun/interview_internal_reference/blob/master/11.MongoDB%E7%AF%87/11.5.5%20%E5%9C%A8MongoDB%E4%B8%AD%E4%BB%80%E4%B9%88%E6%98%AF%E5%89%AF%E6%9C%AC%E9%9B%86%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1155-在mongodb中什么是副本集
	https://github.com/leunnldun/interview_internal_reference#1156-mongodb存储特性与内部原理
	https://github.com/leunnldun/interview_internal_reference#zookeeper篇
12.1.0 zookeeper是什么？	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.0%20zookeeper%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1210-zookeeper是什么
12.1.1 zookeeper提供了什么？	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.1%20zookeeper%E6%8F%90%E4%BE%9B%E4%BA%86%E4%BB%80%E4%B9%88%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1211-zookeeper提供了什么
12.1.2 zookeeper文件系统	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.2%20zookeeper%E6%96%87%E4%BB%B6%E7%B3%BB%E7%BB%9F.md
	https://github.com/leunnldun/interview_internal_reference#1212-zookeeper文件系统
12.1.3 zookeeper的四种类型的znode	https://github.com/0voice/interview_internal_reference/blob/master/12.1.3%20zookeeper%E7%9A%84%E5%9B%9B%E7%A7%8D%E7%B1%BB%E5%9E%8B%E7%9A%84znode.md
	https://github.com/leunnldun/interview_internal_reference#1213-zookeeper的四种类型的znode
12.1.4 zookeeper通知机制	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.4%20zookeeper%E9%80%9A%E7%9F%A5%E6%9C%BA%E5%88%B6.md
	https://github.com/leunnldun/interview_internal_reference#1214-zookeeper通知机制
12.1.5 zookeeper有哪些应用场景？	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.5%20zookeeper%E6%9C%89%E5%93%AA%E4%BA%9B%E5%BA%94%E7%94%A8%E5%9C%BA%E6%99%AF%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1215-zookeeper有哪些应用场景
12.1.6 zk的命名服务	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.6%20zk%E7%9A%84%E5%91%BD%E5%90%8D%E6%9C%8D%E5%8A%A1.md
	https://github.com/leunnldun/interview_internal_reference#1216-zk的命名服务
12.1.7 zk的配置管理服务	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.7%20zk%E7%9A%84%E9%85%8D%E7%BD%AE%E7%AE%A1%E7%90%86%E6%9C%8D%E5%8A%A1.md
	https://github.com/leunnldun/interview_internal_reference#1217-zk的配置管理服务
12.1.8 zk的集群管理	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.8%20zk%E7%9A%84%E9%9B%86%E7%BE%A4%E7%AE%A1%E7%90%86.md
	https://github.com/leunnldun/interview_internal_reference#1218-zk的集群管理
12.1.9 zk的分布式锁	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.1.9%20zk%E7%9A%84%E5%88%86%E5%B8%83%E5%BC%8F%E9%94%81.md
	https://github.com/leunnldun/interview_internal_reference#1219-zk的分布式锁
12.2.0 zk队列管理	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.0%20zk%E9%98%9F%E5%88%97%E7%AE%A1%E7%90%86.md
	https://github.com/leunnldun/interview_internal_reference#1220-zk队列管理
12.2.1 zk数据复制	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.1%20zk%E6%95%B0%E6%8D%AE%E5%A4%8D%E5%88%B6.md
	https://github.com/leunnldun/interview_internal_reference#1221-zk数据复制
12.2.2 zk的工作原理	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.2%20zk%E7%9A%84%E5%B7%A5%E4%BD%9C%E5%8E%9F%E7%90%86.md
	https://github.com/leunnldun/interview_internal_reference#1222-zk的工作原理
12.2.3 zk是如何保证事物的顺序一致性	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.3%20zk%E6%98%AF%E5%A6%82%E4%BD%95%E4%BF%9D%E8%AF%81%E4%BA%8B%E7%89%A9%E7%9A%84%E9%A1%BA%E5%BA%8F%E4%B8%80%E8%87%B4%E6%80%A7.md
	https://github.com/leunnldun/interview_internal_reference#1223-zk是如何保证事物的顺序一致性
12.2.4 zk集群下server工作状态	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.4%20zk%E9%9B%86%E7%BE%A4%E4%B8%8Bserver%E5%B7%A5%E4%BD%9C%E7%8A%B6%E6%80%81.md
	https://github.com/leunnldun/interview_internal_reference#1224-zk集群下server工作状态
12.2.5 zk是如何选举Leader的？	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.5%20zk%E6%98%AF%E5%A6%82%E4%BD%95%E9%80%89%E4%B8%BELeader%E7%9A%84%EF%BC%9F.md
	https://github.com/leunnldun/interview_internal_reference#1225-zk是如何选举leader的
12.2.6 zk同步流程	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.6%20zk%E5%90%8C%E6%AD%A5%E6%B5%81%E7%A8%8B.md
	https://github.com/leunnldun/interview_internal_reference#1226-zk同步流程
12.2.7 分布式通知和协调	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.7%20%E5%88%86%E5%B8%83%E5%BC%8F%E9%80%9A%E7%9F%A5%E5%92%8C%E5%8D%8F%E8%B0%83.md
	https://github.com/leunnldun/interview_internal_reference#1227-分布式通知和协调
12.2.8 zk的session机制	https://github.com/leunnldun/interview_internal_reference/blob/master/12.Zookeeper%E7%AF%87/12.2.8%20zk%E7%9A%84session%E6%9C%BA%E5%88%B6.md
	https://github.com/leunnldun/interview_internal_reference#1228-zk的session机制
	https://github.com/leunnldun/interview_internal_reference#nginx篇
	https://github.com/leunnldun/interview_internal_reference#1310-请解释一下什么是nginx
	https://github.com/leunnldun/interview_internal_reference#1311-请列举nginx的一些特性
	https://github.com/leunnldun/interview_internal_reference#1312-请列举nginx和apache-之间的不同点
	https://github.com/leunnldun/interview_internal_reference#1313-请解释nginx如何处理http请求
	https://github.com/leunnldun/interview_internal_reference#1314-在nginx中如何使用未定义的服务器名称来阻止处理请求
	https://github.com/leunnldun/interview_internal_reference#1315-使用反向代理服务器的优点是什么
	https://github.com/leunnldun/interview_internal_reference#1316-请列举nginx服务器的最佳用途
	https://github.com/leunnldun/interview_internal_reference#1317-请解释nginx服务器上的master和worker进程分别是什么
	https://github.com/leunnldun/interview_internal_reference#1318-请解释你如何通过不同于80的端口开启nginx
	https://github.com/leunnldun/interview_internal_reference#1319--请解释是否有可能将nginx的错误替换为502错误503
	https://github.com/leunnldun/interview_internal_reference#1320-在nginx中解释如何在url中保留双斜线
	https://github.com/leunnldun/interview_internal_reference#1321-请解释ngx_http_upstream_module的作用是什么
	https://github.com/leunnldun/interview_internal_reference#1322-请解释什么是c10k问题后来是怎么解决的
	https://github.com/leunnldun/interview_internal_reference#1323-请陈述stub_status和sub_filter指令的作用是什么
	https://github.com/leunnldun/interview_internal_reference#1324-解释nginx是否支持将请求压缩到上游
	https://github.com/leunnldun/interview_internal_reference#1325-解释如何在nginx中获得当前的时间
	https://github.com/leunnldun/interview_internal_reference#1326-用nginx服务器解释-s的目的是什么
	https://github.com/leunnldun/interview_internal_reference#1327-解释如何在nginx服务器上添加模块
	https://github.com/leunnldun/interview_internal_reference#1328-nginx中多个work进程是如何监听同一个端口的如何处理客户连接的惊群问题
	https://github.com/leunnldun/interview_internal_reference#1329-nginx程序的热更新是如何做的
	https://github.com/leunnldun/interview_internal_reference/blob/master/arch.jpg
	https://github.com/leunnldun/interview_internal_reference#鸣谢
	https://github.com/leunnldun/interview_internal_reference#感谢各位贡献patch的朋友-还很多在issue里面出谋划策的朋友为此衷心感谢使得该repo能够在github趋势榜持续一周时间问鼎排行榜
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