René's URL Explorer Experiment

{
  "@context": "https://schema.org",
  "@type": "BlogPosting",
  "headline": "Python 零基础入门（4/6）：模块、面向对象与异常处理",
  "description": "学习 Python 模块导入、类与对象、继承多态、try/except 异常处理，从脚本思维升级到结构化编程。",
  "author": {
    "@type": "Person",
    "name": "wistbean"
  },
  "publisher": {
    "@type": "Organization",
    "name": "wistbean"
  },
  "datePublished": "2026-03-26T11:15:00+08:00",
  "dateModified": "2026-03-26T12:00:00+08:00",
  "mainEntityOfPage": "https://wistbean.org/python-oop-exceptions.html",
  "inLanguage": "zh-CN"
}

{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "mainEntity": [
    {
      "@type": "Question",
      "name": "新手有必要一开始就学面向对象吗？",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "需要，但不必过深。先理解类是模板、对象是实例，再通过小例子逐步加深。"
      }
    },
    {
      "@type": "Question",
      "name": "try/except 会不会掩盖真实错误？",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "会，所以要捕获具体异常（如 ValueError），避免直接写裸 except。"
      }
    },
    {
      "@type": "Question",
      "name": "什么时候该用自定义异常？",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "当业务规则需要被明确区分时（如余额不足、参数非法），建议定义业务异常提高可读性。"
      }
    }
  ]
}