{"id":74,"date":"2025-06-29T19:39:07","date_gmt":"2025-06-29T11:39:07","guid":{"rendered":"https:\/\/www.rbfwq.com\/blog\/?p=74"},"modified":"2025-06-29T19:39:07","modified_gmt":"2025-06-29T11:39:07","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8python%e4%b8%ad%e5%88%a4%e6%96%ad%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e8%80%8c%e5%bf%bd%e7%95%a5%e5%a4%a7%e5%b0%8f%e5%86%99","status":"publish","type":"post","link":"https:\/\/www.idc61.com\/blog\/74.html","title":{"rendered":"\u5982\u4f55\u5728Python\u4e2d\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u5b58\u5728\u800c\u5ffd\u7565\u5927\u5c0f\u5199"},"content":{"rendered":"

Python \u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u5b58\u5728\u5ffd\u7565\u5927\u5c0f\u5199<\/h2>\n<\/p>\n

\"\u5982\u4f55\u5728Python\u4e2d\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u5b58\u5728\u800c\u5ffd\u7565\u5927\u5c0f\u5199\"<\/p>\n

\u5728Python\u7f16\u7a0b\u4e2d\uff0c\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u5305\u542b\u53e6\u4e00\u4e2a\u5b50\u5b57\u7b26\u4e32\u662f\u975e\u5e38\u5e38\u89c1\u7684\u64cd\u4f5c\u3002\u7136\u800c\uff0c\u5f88\u591a\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5e0c\u671b\u5728\u8fdb\u884c\u8fd9\u79cd\u5224\u65ad\u65f6\u5ffd\u7565\u5927\u5c0f\u5199\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u6709\u6548\u5730\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0c\u63d0\u4f9b\u8be6\u7ec6\u7684\u64cd\u4f5c\u6b65\u9aa4\u3001\u547d\u4ee4\u793a\u4f8b\u53ca\u76f8\u5173\u7684\u6ce8\u610f\u4e8b\u9879\u4e0e\u5b9e\u7528\u6280\u5de7\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u57fa\u672c\u64cd\u4f5c\u6b65\u9aa4<\/h3>\n<\/p>\n

\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u5305\u542b\u53e6\u4e00\u4e2a\u5b57\u7b26\u4e32\u5ffd\u7565\u5927\u5c0f\u5199\u7684\u57fa\u672c\u601d\u8def\u662f\uff1a\u5c06\u4e24\u4e2a\u5b57\u7b26\u4e32\u90fd\u8f6c\u6362\u4e3a\u76f8\u540c\u7684\u5927\u5c0f\u5199\u5f62\u5f0f\uff0c\u7136\u540e\u4f7f\u7528\u5305\u542b\u64cd\u4f5c\u6765\u8fdb\u884c\u5224\u65ad\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u7684\u64cd\u4f5c\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n

    \n
  1. \u9009\u62e9\u4e24\u4e2a\u8981\u6bd4\u8f83\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n
  2. \u4f7f\u7528 lower()<\/strong> \u6216 upper()<\/strong> \u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u7edf\u4e00\u8f6c\u4e3a\u5c0f\u5199\u6216\u5927\u5199\u3002<\/li>\n
  3. \u4f7f\u7528 in<\/strong> \u5173\u952e\u5b57\u8fdb\u884c\u5224\u65ad\u3002<\/li>\n<\/ol>\n

    \u4e8c\u3001\u547d\u4ee4\u793a\u4f8b<\/h3>\n<\/p>\n

    \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e24\u4e2a\u5b57\u7b26\u4e32\uff0cmain_string<\/strong> \u548c substring<\/strong>\uff0c\u6211\u4eec\u5e0c\u671b\u68c0\u67e5substring<\/strong> \u662f\u5426\u5b58\u5728\u4e8emain_string<\/strong> \u4e2d\uff1a<\/p>\n<\/p>\n

    main_string = \"Hello, World!\"<\/p>\r\n
    substring = \"hello\"<\/p>\r\n\r\n
    # \u5c06\u4e24\u4e2a\u5b57\u7b26\u4e32\u90fd\u8f6c\u4e3a\u5c0f\u5199\uff0c\u518d\u8fdb\u884c\u5224\u65ad<\/p>\r\n
    if substring.lower() in main_string.lower():<\/p>\r\n
        print(\"Substring exists in main string, ignoring case.\")<\/p>\r\n
    else:<\/p>\r\n
        print(\"Substring does not exist in main string.\")<\/p>\r\n
    <\/code><\/pre>\n<\/p>\n
    \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cmain_string.lower()<\/strong> \u5c06\u4e3b\u5b57\u7b26\u4e32\u8f6c\u4e3a\u5c0f\u5199\u5f62\u5f0f\uff0c\u800csubstring.lower()<\/strong> \u540c\u6837\u8f6c\u4e3a\u5c0f\u5199\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5ffd\u7565\u5927\u5c0f\u5199\u8fdb\u884c\u5224\u65ad\u3002<\/p>\n<\/p>\n
    \u4e09\u3001\u4f7f\u7528\u5185\u7f6e\u51fd\u6570\u5b9e\u73b0\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684\u5224\u65ad<\/h3>\n<\/p>\n
    \u9664\u4e86\u76f4\u63a5\u4f7f\u7528\u5927\u5c0f\u5199\u8f6c\u6362\u7684\u65b9\u6cd5\u5916\uff0cPython\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5185\u7f6e\u51fd\u6570\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8fdb\u884c\u66f4\u52a0\u7b80\u6d01\u7684\u5b57\u7b26\u4e32\u5224\u65ad\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 str.casefold()<\/strong> \u65b9\u6cd5\u8fdb\u884c\u5224\u65ad\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
    main_string = \"Hello, World!\"<\/p>\r\n
    substring = \"HELLO\"<\/p>\r\n\r\n
    # \u4f7f\u7528 casefold() \u65b9\u6cd5\u8fdb\u884c\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684\u6bd4\u8f83<\/p>\r\n
    if substring.casefold() in main_string.casefold():<\/p>\r\n
        print(\"Substring exists in main string, ignoring case via casefold.\")<\/p>\r\n
    else:<\/p>\r\n
        print(\"Substring does not exist in main string via casefold.\")<\/p>\r\n
    <\/code><\/pre>\n<\/p>\n
    casefold()<\/strong> \u65b9\u6cd5\u88ab\u8bbe\u8ba1\u4e3a\u66f4\u5f3a\u5927\u7684\u5c0f\u5199\u8f6c\u6362\uff0c\u9002\u7528\u4e8e\u66f4\u591a\u8bed\u8a00\u7684\u5b57\u7b26\uff0c\u5728\u67d0\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u6bd4 lower()<\/strong> \u66f4\u52a0\u51c6\u786e\u3002<\/p>\n<\/p>\n
    \u56db\u3001\u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
      \n
    • \u6027\u80fd\u8003\u8651\uff1a<\/strong>\u5728\u5904\u7406\u975e\u5e38\u5927\u7684\u5b57\u7b26\u4e32\u65f6\uff0c\u9891\u7e41\u7684\u5927\u5c0f\u5199\u8f6c\u6362\u53ef\u80fd\u4f1a\u5f71\u54cd\u6027\u80fd\u3002\u5728\u8fdb\u884c\u5927\u91cf\u6bd4\u8f83\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4e00\u6b21\u6027\u8f6c\u6362\u5e76\u5b58\u50a8\u3002<\/li>\n
    • \u5b57\u7b26\u7f16\u7801\u95ee\u9898\uff1a<\/strong>\u67d0\u4e9b\u7279\u6b8a\u5b57\u7b26\u5728\u4e0d\u540c\u8bed\u8a00\u4e2d\u53ef\u80fd\u8868\u73b0\u4e0d\u540c\uff0c\u5c06\u5b57\u7b26\u4e32\u7edf\u4e00\u5904\u7406\u65f6\u8981\u8c28\u614e\u5bf9\u5f85\u3002<\/li>\n
    • \u4f7f\u7528\u66f4\u5148\u8fdb\u7684\u6587\u672c\u6bd4\u8f83\u5e93\uff1a<\/strong>\u5bf9\u4e8e\u590d\u6742\u7684\u5b57\u7b26\u4e32\u6bd4\u8f83\u9700\u6c42\uff0c\u5efa\u8bae\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\uff0c\u5982 fuzzywuzzy<\/strong>\uff0c\u5b83\u80fd\u591f\u63d0\u4f9b\u66f4\u667a\u80fd\u7684\u5b57\u7b26\u4e32\u5339\u914d\u529f\u80fd\u3002<\/li>\n
    • \u9009\u62e9\u9002\u5f53\u7684\u6bd4\u8f83\u65b9\u6cd5\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u7b80\u5355\u7684\u5305\u542b\u5224\u65ad\u53ef\u80fd\u4e0d\u8db3\u4ee5\u6ee1\u8db3\u9700\u6c42\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u66f4\u52a0\u590d\u6742\u7684\u5339\u914d\u3002<\/li>\n<\/ul>\n
      \u4e94\u3001\u5b9e\u7528\u6280\u5de7<\/h3>\n<\/p>\n
        \n
      1. \u5bf9\u4e8e\u591a\u4e2a\u5b50\u5b57\u7b26\u4e32\u7684\u68c0\u67e5\uff1a<\/strong>\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u51fd\u6570\uff0c\u901a\u8fc7\u5faa\u73af\u6bd4\u8f83\u591a\u4e2a\u5b50\u5b57\u7b26\u4e32\uff0c\u6765\u5224\u65ad\u5b83\u4eec\u662f\u5426\u5b58\u5728\u4e8e\u4e3b\u5b57\u7b26\u4e32\u4e2d\u3002<\/li>\n
      2. \u5229\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\uff1a<\/strong>\u53ef\u4ee5\u901a\u8fc7\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u5feb\u901f\u67e5\u627e\u591a\u4e2a\u5b50\u5b57\u7b26\u4e32\u662f\u5426\u5b58\u5728\u3002<\/li>\n<\/ol>\n
        \u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u51fd\u6570\u7684\u5b9e\u73b0\u548c\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u68c0\u67e5\u591a\u4e2a\u5b50\u5b57\u7b26\u4e32\u7684\u5b58\u5728\u6027\uff1a<\/p>\n<\/p>\n
        def substring_exists(main_string, substrings):<\/p>\r\n
            # \u7edf\u4e00\u8f6c\u6362\u4e3b\u5b57\u7b26\u4e32\u4e3a\u5c0f\u5199<\/p>\r\n
            main_string_lower = main_string.lower()<\/p>\r\n
            # \u8fd4\u56de\u5305\u542b\u5b58\u5728\u7684\u5b50\u5b57\u7b26\u4e32\u5217\u8868<\/p>\r\n
            return [s for s in substrings if s.lower() in main_string_lower]<\/p>\r\n\r\n
        main_string = \"Hello, World!\"<\/p>\r\n
        substrings = [\"hello\", \"world\", \"python\"]<\/p>\r\n\r\n
        # \u8c03\u7528\u51fd\u6570\u8fdb\u884c\u5224\u65ad<\/p>\r\n
        existing_substrings = substring_exists(main_string, substrings)<\/p>\r\n
        print(\"Existing substrings:\", existing_substrings)<\/p>\r\n
        <\/code><\/pre>\n<\/p>\n
        \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u51fd\u6570 substring_exists<\/strong>\uff0c\u5b83\u63a5\u53d7\u4e3b\u5b57\u7b26\u4e32\u548c\u5b50\u5b57\u7b26\u4e32\u5217\u8868\uff0c\u8fd4\u56de\u4e00\u4e2a\u5b58\u5728\u4e8e\u4e3b\u5b57\u7b26\u4e32\u4e2d\u7684\u5b50\u5b57\u7b26\u4e32\u7684\u65b0\u5217\u8868\u3002<\/p>\n<\/p>\n
        \u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
        \u901a\u8fc7\u4ee5\u4e0a\u7684\u5185\u5bb9\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u5728Python\u4e2d\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u5b58\u5728\u5e76\u5ffd\u7565\u5927\u5c0f\u5199\u7684\u65b9\u6cd5\u6709\u591a\u79cd\u9009\u62e9\u3002\u65e0\u8bba\u662f\u901a\u8fc7\u57fa\u672c\u7684\u5b57\u7b26\u4e32\u5927\u5c0f\u5199\u8f6c\u6362\uff0c\u8fd8\u662f\u5229\u7528\u5185\u7f6e\u51fd\u6570\u6216\u81ea\u5b9a\u4e49\u51fd\u6570\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u7279\u5b9a\u7684\u9002\u7528\u573a\u666f\u3002\u5e0c\u671b\u672c\u7bc7\u6587\u7ae0\u80fd\u591f\u4e3a\u4f60\u5728Python\u7f16\u7a0b\u4e2d\u5904\u7406\u5b57\u7b26\u4e32\u63d0\u4f9b\u5e2e\u52a9\uff0c\u63d0\u5347\u4f60\u7684\u7f16\u7801\u6548\u7387\u548c\u7a0b\u5e8f\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
        Python \u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u5b58\u5728\u5ffd\u7565\u5927\u5c0f\u5199 \u5728Python\u7f16\u7a0b\u4e2d\uff0c\u5224\u65ad\u4e00\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u5305\u542b\u53e6\u4e00\u4e2a\u5b50\u5b57\u7b26\u4e32\u662f\u975e\u5e38\u5e38\u89c1\u7684\u64cd\u4f5c\u3002\u7136\u800c\uff0c\u5f88\u591a\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5e0c\u671b\u5728\u8fdb\u884c\u8fd9\u79cd\u5224\u65ad\u65f6\u5ffd\u7565\u5927\u5c0f\u5199\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u6709\u6548\u5730\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0c\u63d0\u4f9b\u8be6\u7ec6\u7684\u64cd\u4f5c\u6b65\u9aa4\u3001\u547d\u4ee4\u793a\u4f8b…<\/p>\n","protected":false},"author":1,"featured_media":75,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-74","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-jishu"],"_links":{"self":[{"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/posts\/74","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/comments?post=74"}],"version-history":[{"count":1,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/posts\/74\/revisions"}],"predecessor-version":[{"id":77,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/posts\/74\/revisions\/77"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/media\/75"}],"wp:attachment":[{"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/media?parent=74"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/categories?post=74"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/tags?post=74"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.idc61.com\/blog\/wp-json\/wp\/v2\/topic?post=74"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}