{"id":995296,"date":"2024-12-27T09:03:42","date_gmt":"2024-12-27T01:03:42","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/995296.html"},"modified":"2024-12-27T09:03:47","modified_gmt":"2024-12-27T01:03:47","slug":"%e5%a6%82%e4%bd%95%e8%8e%b7%e5%8f%96python%e6%89%a7%e8%a1%8c%e7%bb%93%e6%9e%9c","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/995296.html","title":{"rendered":"\u5982\u4f55\u83b7\u53d6python\u6267\u884c\u7ed3\u679c"},"content":{"rendered":"

\"\u5982\u4f55\u83b7\u53d6python\u6267\u884c\u7ed3\u679c\"<\/p>\n

\u83b7\u53d6Python\u6267\u884c\u7ed3\u679c\u7684\u65b9\u6cd5\u4e3b\u8981\u5305\u62ec\u4f7f\u7528print\u51fd\u6570\u8f93\u51fa\u3001\u4f7f\u7528return\u8bed\u53e5\u8fd4\u56de\u3001\u4f7f\u7528\u65e5\u5fd7\u8bb0\u5f55\u3001\u4f7f\u7528\u6587\u4ef6\u6216\u6570\u636e\u5e93\u5b58\u50a8<\/strong>\u3002\u5176\u4e2d\uff0c\u4f7f\u7528print\u51fd\u6570\u8f93\u51fa\u662f\u6700\u5e38\u7528\u7684\u65b9\u5f0f\u4e4b\u4e00\u3002\u5b83\u53ef\u4ee5\u5728\u63a7\u5236\u53f0\u4e2d\u5373\u65f6\u663e\u793a\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c\uff0c\u7279\u522b\u9002\u5408\u7528\u4e8e\u8c03\u8bd5\u548c\u9a8c\u8bc1\u7b80\u5355\u7684\u4ee3\u7801\u6bb5\u3002\u4f7f\u7528return\u8bed\u53e5\u8fd4\u56de\u7ed3\u679c<\/strong>\u662f\u4e00\u79cd\u66f4\u52a0\u7ed3\u6784\u5316\u7684\u65b9\u5f0f\uff0c\u9002\u7528\u4e8e\u51fd\u6570\u8c03\u7528\uff0c\u53ef\u4ee5\u5c06\u7ed3\u679c\u8fdb\u4e00\u6b65\u4f20\u9012\u7ed9\u5176\u4ed6\u51fd\u6570\u6216\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\u3002\u4ee5\u4e0b\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4e00\u3001PRINT\u51fd\u6570\u8f93\u51fa<\/p>\n<\/p>\n

\u4f7f\u7528print\u51fd\u6570\u662fPython\u4e2d\u6700\u57fa\u672c\u7684\u8f93\u51fa\u65b9\u5f0f\u4e4b\u4e00\u3002\u5b83\u9002\u7528\u4e8e\u5feb\u901f\u67e5\u770b\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c\uff0c\u7279\u522b\u662f\u5f53\u4f60\u9700\u8981\u5728\u5f00\u53d1\u6216\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u68c0\u67e5\u53d8\u91cf\u7684\u503c\u6216\u7a0b\u5e8f\u7684\u8fd0\u884c\u72b6\u6001\u65f6\u3002<\/p>\n<\/p>\n

    \n
  1. \n

    \u57fa\u672c\u4f7f\u7528<\/strong><\/p>\n<\/p>\n

    \u4f7f\u7528print\u51fd\u6570\u53ef\u4ee5\u7b80\u5355\u5730\u8f93\u51fa\u6587\u672c\u6216\u53d8\u91cf\u7684\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

    result = 10 + 5<\/p>\n
    print("The result is:", result)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8fd9\u6bb5\u4ee3\u7801\u4f1a\u5728\u63a7\u5236\u53f0\u8f93\u51fa\uff1a\u201cThe result is: 15\u201d\u3002<\/p>\n<\/p>\n<\/li>\n
  2. \n
    \u683c\u5f0f\u5316\u8f93\u51fa<\/strong><\/p>\n<\/p>\n
    Python\u63d0\u4f9b\u4e86\u591a\u79cd\u683c\u5f0f\u5316\u8f93\u51fa\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u65e7\u5f0f\u7684\u767e\u5206\u53f7\u683c\u5f0f\u5316\u3001\u65b0\u5f0f\u7684str.format()\u65b9\u6cd5\u4ee5\u53ca\u6700\u65b0\u7684f-strings\uff08\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u5b57\u9762\u503c\uff09\u3002<\/p>\n<\/p>\n
      \n
    • \n
      \u767e\u5206\u53f7\u683c\u5f0f\u5316<\/strong><\/p>\n<\/p>\n
      name = "Alice"<\/p>\n
      age = 30<\/p>\n
      print("Name: %s, Age: %d" % (name, age))<\/p>\n
      <\/code><\/pre>\n<\/p>\n<\/li>\n
    • \n
      str.format()\u65b9\u6cd5<\/strong><\/p>\n<\/p>\n
      print("Name: {}, Age: {}".format(name, age))<\/p>\n
      <\/code><\/pre>\n<\/p>\n<\/li>\n
    • \n
      f-strings<\/strong><\/p>\n<\/p>\n
      print(f"Name: {name}, Age: {age}")<\/p>\n
      <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n
      \u5176\u4e2df-strings\u662fPython 3.6\u53ca\u4ee5\u4e0a\u7248\u672c\u63d0\u4f9b\u7684\u529f\u80fd\uff0c\u4f7f\u7528\u8d77\u6765\u66f4\u52a0\u7b80\u6d01\u76f4\u89c2\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
      \u4e8c\u3001RETURN\u8bed\u53e5\u8fd4\u56de<\/p>\n<\/p>\n
      \u5728\u51fd\u6570\u4e2d\uff0c\u4f7f\u7528return\u8bed\u53e5\u53ef\u4ee5\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u8c03\u7528\u8005\uff0c\u8fd9\u79cd\u65b9\u5f0f\u9002\u7528\u4e8e\u66f4\u590d\u6742\u7684\u7a0b\u5e8f\u7ed3\u6784\u3002<\/p>\n<\/p>\n
        \n
      1. \n
        \u57fa\u672c\u4f7f\u7528<\/strong><\/p>\n<\/p>\n
        \u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u5e76\u4f7f\u7528return\u8bed\u53e5\u8fd4\u56de\u7ed3\u679c\uff1a<\/p>\n<\/p>\n
        def add_numbers(a, b):<\/p>\n
            return a + b<\/p>\n
        result = add_numbers(10, 5)<\/p>\n
        print("The sum is:", result)<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      2. \n
        \u8fd4\u56de\u591a\u4e2a\u503c<\/strong><\/p>\n<\/p>\n
        Python\u5141\u8bb8\u51fd\u6570\u8fd4\u56de\u591a\u4e2a\u503c\uff0c\u8fd4\u56de\u7684\u591a\u4e2a\u503c\u5b9e\u9645\u4e0a\u662f\u4ee5\u5143\u7ec4\u7684\u5f62\u5f0f\u8fd4\u56de\u7684\uff1a<\/p>\n<\/p>\n
        def get_name_and_age():<\/p>\n
            name = "Alice"<\/p>\n
            age = 30<\/p>\n
            return name, age<\/p>\n
        name, age = get_name_and_age()<\/p>\n
        print(f"Name: {name}, Age: {age}")<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u8fd9\u79cd\u65b9\u5f0f\u5728\u9700\u8981\u540c\u65f6\u8fd4\u56de\u591a\u4e2a\u76f8\u5173\u503c\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
        \u4e09\u3001\u4f7f\u7528\u65e5\u5fd7\u8bb0\u5f55<\/p>\n<\/p>\n
        \u65e5\u5fd7\u8bb0\u5f55\u662f\u4e00\u79cd\u66f4\u4e3a\u4e13\u4e1a\u7684\u65b9\u5f0f\uff0c\u9002\u7528\u4e8e\u9700\u8981\u957f\u671f\u76d1\u63a7\u6216\u8bb0\u5f55\u7a0b\u5e8f\u8fd0\u884c\u72b6\u6001\u7684\u573a\u666f\u3002Python\u63d0\u4f9b\u4e86logging\u6a21\u5757\u6765\u652f\u6301\u65e5\u5fd7\u8bb0\u5f55\u3002<\/p>\n<\/p>\n
          \n
        1. \n
          \u57fa\u672c\u4f7f\u7528<\/strong><\/p>\n<\/p>\n
          \u4f7f\u7528logging\u6a21\u5757\u8bb0\u5f55\u4fe1\u606f\uff1a<\/p>\n<\/p>\n
          import logging<\/p>\n
          logging.basicConfig(level=logging.INFO)<\/p>\n
          logging.info("This is an info message")<\/p>\n
          logging.warning("This is a warning message")<\/p>\n
          logging.error("This is an error message")<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u8fd9\u4e9b\u4fe1\u606f\u53ef\u4ee5\u6839\u636e\u9700\u8981\u88ab\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3001\u6587\u4ef6\u6216\u5176\u4ed6\u65e5\u5fd7\u7ba1\u7406\u7cfb\u7edf\u4e2d\u3002<\/p>\n<\/p>\n<\/li>\n
        2. \n
          \u65e5\u5fd7\u914d\u7f6e<\/strong><\/p>\n<\/p>\n
          \u901a\u8fc7\u914d\u7f6e\u53ef\u4ee5\u63a7\u5236\u65e5\u5fd7\u7684\u8f93\u51fa\u683c\u5f0f\u3001\u7ea7\u522b\u4ee5\u53ca\u8f93\u51fa\u4f4d\u7f6e\uff1a<\/p>\n<\/p>\n
          logging.basicConfig(filename='app.log', filemode='w', format='%(name)s - %(levelname)s - %(message)s')<\/p>\n
          logging.error("This will be written to the file app.log")<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u8fd9\u79cd\u65b9\u5f0f\u975e\u5e38\u9002\u5408\u4e8e\u9700\u8981\u5206\u6790\u7a0b\u5e8f\u5386\u53f2\u8fd0\u884c\u72b6\u6001\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
          \u56db\u3001\u4f7f\u7528\u6587\u4ef6\u6216\u6570\u636e\u5e93\u5b58\u50a8<\/p>\n<\/p>\n
          \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c\u9700\u8981\u88ab\u6301\u4e45\u5316\u4ee5\u4f9b\u540e\u7eed\u5206\u6790\u6216\u4f7f\u7528\uff0c\u8fd9\u65f6\u53ef\u4ee5\u9009\u62e9\u5c06\u7ed3\u679c\u5199\u5165\u6587\u4ef6\u6216\u5b58\u50a8\u5230\u6570\u636e\u5e93\u4e2d\u3002<\/p>\n<\/p>\n
            \n
          1. \n
            \u6587\u4ef6\u5b58\u50a8<\/strong><\/p>\n<\/p>\n
            \u4f7f\u7528Python\u7684\u5185\u7f6e\u6587\u4ef6\u64cd\u4f5c\u51fd\u6570\uff0c\u53ef\u4ee5\u8f7b\u677e\u5c06\u6570\u636e\u5199\u5165\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
            with open('output.txt', 'w') as f:<\/p>\n
                f.write("This is the output result.\\n")<\/p>\n
            <\/code><\/pre>\n<\/p>\n
            \u8fd9\u79cd\u65b9\u5f0f\u9002\u7528\u4e8e\u7b80\u5355\u7684\u6570\u636e\u5b58\u50a8\u9700\u6c42\u3002<\/p>\n<\/p>\n<\/li>\n
          2. \n
            \u6570\u636e\u5e93\u5b58\u50a8<\/strong><\/p>\n<\/p>\n
            \u5bf9\u4e8e\u7ed3\u6784\u5316\u6570\u636e\uff0c\u4f7f\u7528\u6570\u636e\u5e93\u5b58\u50a8\u662f\u4e00\u4e2a\u66f4\u597d\u7684\u9009\u62e9\u3002Python\u652f\u6301\u4e0e\u591a\u79cd\u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92\uff0c\u5982SQLite\u3001MySQL\u3001PostgreSQL\u7b49\u3002<\/p>\n<\/p>\n
              \n
            • \n
              SQLite\u793a\u4f8b<\/strong><\/p>\n<\/p>\n
              import sqlite3<\/p>\n
              conn = sqlite3.connect('example.db')<\/p>\n
              c = conn.cursor()<\/p>\n
              c.execute('''CREATE TABLE IF NOT EXISTS results (id INTEGER PRIMARY KEY, result TEXT)''')<\/p>\n
              c.execute("INSERT INTO results (result) VALUES ('This is a database result')")<\/p>\n
              conn.commit()<\/p>\n
              conn.close()<\/p>\n
              <\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n
              \u8fd9\u79cd\u65b9\u5f0f\u9002\u7528\u4e8e\u9700\u8981\u5b58\u50a8\u548c\u67e5\u8be2\u5927\u91cf\u7ed3\u6784\u5316\u6570\u636e\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
              \u901a\u8fc7\u4ee5\u4e0a\u51e0\u79cd\u65b9\u6cd5\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u9700\u6c42\u83b7\u53d6\u548c\u5904\u7406Python\u7a0b\u5e8f\u7684\u6267\u884c\u7ed3\u679c\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5404\u6709\u4f18\u52a3\uff0c\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\u5c06\u6709\u52a9\u4e8e\u63d0\u9ad8\u7a0b\u5e8f\u7684\u53ef\u8bfb\u6027\u3001\u53ef\u7ef4\u62a4\u6027\u4ee5\u53ca\u6570\u636e\u7684\u7ba1\u7406\u6548\u7387\u3002<\/p>\n<\/p>\n
              \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
               \u5982\u4f55\u5728Python\u4e2d\u83b7\u53d6\u51fd\u6570\u7684\u8fd4\u56de\u503c\uff1f<\/strong>
              \u5728Python\u4e2d\uff0c\u83b7\u53d6\u51fd\u6570\u7684\u8fd4\u56de\u503c\u975e\u5e38\u7b80\u5355\u3002\u60a8\u53ea\u9700\u5728\u51fd\u6570\u4e2d\u4f7f\u7528return<\/code>\u8bed\u53e5\u8fd4\u56de\u60f3\u8981\u7684\u7ed3\u679c\u3002\u8c03\u7528\u8be5\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u5c06\u8fd4\u56de\u503c\u8d4b\u7ed9\u4e00\u4e2a\u53d8\u91cf\u3002\u4f8b\u5982\uff1a  <\/p>\n
              def add(a, b):\n    return a + b\n\nresult = add(5, 3)\nprint(result)  # \u8f93\u51fa8\n<\/code><\/pre>\n
              \u8fd9\u6837\uff0c\u60a8\u5c31\u53ef\u4ee5\u83b7\u5f97\u51fd\u6570\u7684\u6267\u884c\u7ed3\u679c\u5e76\u5728\u540e\u7eed\u4ee3\u7801\u4e2d\u4f7f\u7528\u3002<\/p>\n
              \u5982\u4f55\u5728Python\u4e2d\u6355\u83b7\u5f02\u5e38\u5e76\u83b7\u53d6\u9519\u8bef\u4fe1\u606f\uff1f<\/strong>
              \u5728Python\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528try<\/code>\u548cexcept<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u5f02\u5e38\u5e76\u83b7\u53d6\u9519\u8bef\u4fe1\u606f\u3002\u901a\u8fc7except<\/code>\u5757\uff0c\u60a8\u53ef\u4ee5\u8bbf\u95ee\u5f02\u5e38\u5bf9\u8c61\u5e76\u83b7\u53d6\u76f8\u5173\u7684\u9519\u8bef\u4fe1\u606f\u3002\u4f8b\u5982\uff1a  <\/p>\n
              try:\n    result = 10 \/ 0\nexcept ZeroDivisionError as e:\n    print(f"\u9519\u8bef\u4fe1\u606f: {e}")  # \u8f93\u51fa\u9519\u8bef\u4fe1\u606f\n<\/code><\/pre>\n
              \u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u6355\u83b7\u5e76\u5904\u7406\u6f5c\u5728\u7684\u9519\u8bef\u3002<\/p>\n
              \u5982\u4f55\u5728Python\u4e2d\u6253\u5370\u6267\u884c\u7ed3\u679c\u5230\u63a7\u5236\u53f0\uff1f<\/strong>
              \u5982\u679c\u60a8\u60f3\u67e5\u770bPython\u4ee3\u7801\u7684\u6267\u884c\u7ed3\u679c\uff0cprint()<\/code>\u51fd\u6570\u662f\u6700\u5e38\u7528\u7684\u5de5\u5177\u3002\u5b83\u53ef\u4ee5\u8f93\u51fa\u4efb\u4f55\u7c7b\u578b\u7684\u6570\u636e\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u6570\u5b57\u548c\u590d\u6742\u5bf9\u8c61\u3002\u4f8b\u5982\uff1a  <\/p>\n
              value = 42\nprint("\u6267\u884c\u7ed3\u679c\u662f:", value)\n<\/code><\/pre>\n
              \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u60a8\u53ef\u4ee5\u5728\u63a7\u5236\u53f0\u4e0a\u76f4\u89c2\u5730\u770b\u5230\u4ee3\u7801\u6267\u884c\u540e\u7684\u7ed3\u679c\uff0c\u4fbf\u4e8e\u8c03\u8bd5\u548c\u9a8c\u8bc1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u83b7\u53d6Python\u6267\u884c\u7ed3\u679c\u7684\u65b9\u6cd5\u4e3b\u8981\u5305\u62ec\u4f7f\u7528print\u51fd\u6570\u8f93\u51fa\u3001\u4f7f\u7528return\u8bed\u53e5\u8fd4\u56de\u3001\u4f7f\u7528\u65e5\u5fd7\u8bb0\u5f55\u3001\u4f7f\u7528\u6587\u4ef6 […]","protected":false},"author":3,"featured_media":995314,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/995296"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=995296"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/995296\/revisions"}],"predecessor-version":[{"id":995318,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/995296\/revisions\/995318"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/995314"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=995296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=995296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=995296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}