Python中如何用正则或replace处理带引号的字符串替换？

• 若使用JavaScript，可通过replace()结合全局正则表达式批量替换所有title字段内的目标内容：

  // 原始转义后的JSON字符串
  const originalStr = '[{"title": "something with {\"}", "pub_year": 1988}, {"title": "something with {\"}", "pub_year": 1988}]';
  // 全局替换"something with {"为"something without {"
  const modifiedStr = originalStr.replace(/"title": "something with \{"/g, '"title": "something without \{');
  console.log(modifiedStr);
  

• 若你的字符串是HTML转义格式（含"），直接针对转义内容写正则即可：

  const htmlEscapedStr = '"[{"title": "something with {"}", "pub_year": 1988}, {"title": "something with {"}", "pub_year": 1988}]"';
  const modifiedHtmlStr = htmlEscapedStr.replace(/"title": "something with \{"/g, '"title": "something without \{"');
  console.log(modifiedHtmlStr);
  

• 用Python实现的话，借助re.sub()完成全局替换：

  import re
  original_str = '[{"title": "something with {\"}", "pub_year": 1988}, {"title": "something with {\"}", "pub_year": 1988}]'
  modified_str = re.sub(r'"title": "something with \{', '"title": "something without \{', original_str)
  print(modified_str)
  

内容的提问来源于stack exchange，提问作者Alen