{"id":1146302,"date":"2025-01-08T23:15:48","date_gmt":"2025-01-08T15:15:48","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1146302.html"},"modified":"2025-01-08T23:15:50","modified_gmt":"2025-01-08T15:15:50","slug":"python%e5%a6%82%e4%bd%95%e6%b1%82%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84%e9%95%bf%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1146302.html","title":{"rendered":"Python\u5982\u4f55\u6c42\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6"},"content":{"rendered":"

\"Python\u5982\u4f55\u6c42\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\"<\/p>\n

Python\u4e2d\u6c42\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684len()<\/code>\u51fd\u6570\u3001\u5229\u7528\u81ea\u5b9a\u4e49\u51fd\u6570\u904d\u5386\u5b57\u7b26\u4e32\u8ba1\u7b97\u957f\u5ea6\u3001\u6216\u8005\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u7b49\u65b9\u6cd5\u3002<\/strong>\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u4e14\u6700\u7b80\u5355\u7684\u662f\u4f7f\u7528\u5185\u7f6e\u7684len()<\/code>\u51fd\u6570\u3002\u5b83\u4e0d\u4ec5\u9002\u7528\u4e8e\u5b57\u7b26\u4e32\uff0c\u8fd8\u80fd\u7528\u4e8e\u5217\u8868\u3001\u5143\u7ec4\u3001\u5b57\u5178\u7b49\u6570\u636e\u7ed3\u6784\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u65b9\u6cd5\uff0c\u5e76\u8ba8\u8bba\u5b83\u4eec\u7684\u4f18\u52a3\u548c\u9002\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n

\n

\u4e00\u3001\u4f7f\u7528\u5185\u7f6e\u7684len()<\/code>\u51fd\u6570<\/strong><\/h2>\n

Python\u63d0\u4f9b\u7684len()<\/code>\u51fd\u6570\u662f\u6700\u7b80\u5355\u3001\u6700\u76f4\u63a5\u7684\u65b9\u5f0f\u6765\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002\u5b83\u7684\u4f7f\u7528\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5c06\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9len()<\/code>\u51fd\u6570\u5373\u53ef\u3002<\/p>\n<\/p>\n

my_string = "Hello, World!"<\/p>\n
length = len(my_string)<\/p>\n
print(length)  # \u8f93\u51fa: 13<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
    \n
  • \u7b80\u5355\u76f4\u89c2<\/strong>\uff1a\u4f7f\u7528\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u65e0\u9700\u989d\u5916\u5b66\u4e60\u3002<\/li>\n
  • \u9ad8\u6548<\/strong>\uff1alen()<\/code>\u51fd\u6570\u662fPython\u5185\u7f6e\u51fd\u6570\uff0c\u5e95\u5c42\u8fdb\u884c\u4e86\u4f18\u5316\uff0c\u6027\u80fd\u975e\u5e38\u597d\u3002<\/li>\n<\/ul>\n
    \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
      \n
    • \u4ec5\u9002\u7528\u4e8e\u83b7\u53d6\u957f\u5ea6\uff0c\u65e0\u5176\u4ed6\u529f\u80fd\u3002<\/li>\n<\/ul>\n
      \u8be6\u7ec6\u63cf\u8ff0<\/strong>\uff1alen()<\/code>\u51fd\u6570\u7684\u5185\u90e8\u5b9e\u73b0\u662f\u901a\u8fc7C\u8bed\u8a00\u5b9e\u73b0\u7684\uff0c\u6548\u7387\u6781\u9ad8\u3002\u5f53\u4f60\u8c03\u7528len()<\/code>\u51fd\u6570\u65f6\uff0cPython\u89e3\u91ca\u5668\u4f1a\u76f4\u63a5\u8bbf\u95ee\u5bf9\u8c61\u7684\u957f\u5ea6\u5c5e\u6027\uff0c\u56e0\u6b64\u83b7\u53d6\u957f\u5ea6\u7684\u64cd\u4f5c\u51e0\u4e4e\u662f\u77ac\u65f6\u5b8c\u6210\u7684\u3002\u8fd9\u4f7f\u5f97len()<\/code>\u51fd\u6570\u6210\u4e3a\u5904\u7406\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u9996\u9009\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
      \u4e8c\u3001\u81ea\u5b9a\u4e49\u51fd\u6570\u904d\u5386\u5b57\u7b26\u4e32\u8ba1\u7b97\u957f\u5ea6<\/strong><\/h2>\n
      \u5982\u679c\u4f60\u5e0c\u671b\u6df1\u5165\u7406\u89e3\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u8ba1\u7b97\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u901a\u8fc7\u81ea\u5b9a\u4e49\u51fd\u6570\u6765\u5b9e\u73b0\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u57fa\u672c\u601d\u8def\u662f\u904d\u5386\u5b57\u7b26\u4e32\u7684\u6bcf\u4e00\u4e2a\u5b57\u7b26\uff0c\u5e76\u5bf9\u8ba1\u6570\u5668\u8fdb\u884c\u7d2f\u52a0\u3002<\/p>\n<\/p>\n
      def custom_len(s):<\/p>\n
          count = 0<\/p>\n
          for char in s:<\/p>\n
              count += 1<\/p>\n
          return count<\/p>\n
      my_string = "Hello, World!"<\/p>\n
      length = custom_len(my_string)<\/p>\n
      print(length)  # \u8f93\u51fa: 13<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
        \n
      • \u53ef\u5b9a\u5236<\/strong>\uff1a\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u5bf9\u51fd\u6570\u8fdb\u884c\u6269\u5c55\uff0c\u589e\u52a0\u66f4\u591a\u529f\u80fd\u3002<\/li>\n
      • \u5b66\u4e60\u4ef7\u503c<\/strong>\uff1a\u6df1\u5165\u4e86\u89e3\u5b57\u7b26\u4e32\u64cd\u4f5c\u7684\u57fa\u672c\u539f\u7406\u3002<\/li>\n<\/ul>\n
        \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
          \n
        • \u6548\u7387\u8f83\u4f4e<\/strong>\uff1a\u76f8\u6bd4\u4e8e\u5185\u7f6e\u7684len()<\/code>\u51fd\u6570\uff0c\u81ea\u5b9a\u4e49\u51fd\u6570\u6548\u7387\u8f83\u4f4e\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u957f\u5b57\u7b26\u4e32\u65f6\u3002<\/li>\n<\/ul>\n
          \u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u5b57\u7b26\u4e32\u7684\u7ed3\u6784\u548c\u904d\u5386\u8fc7\u7a0b\u3002\u867d\u7136\u6548\u7387\u4e0d\u5982len()<\/code>\u51fd\u6570\uff0c\u4f46\u5b83\u63d0\u4f9b\u4e86\u7075\u6d3b\u6027\uff0c\u53ef\u4ee5\u5728\u6b64\u57fa\u7840\u4e0a\u8fdb\u884c\u66f4\u591a\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
          \u4e09\u3001\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93<\/strong><\/h2>\n
          \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\uff08\u5982numpy<\/code>\u3001pandas<\/code>\uff09\u5904\u7406\u5b57\u7b26\u4e32\u53ef\u80fd\u4f1a\u66f4\u65b9\u4fbf\u3002\u867d\u7136\u8fd9\u4e9b\u5e93\u4e3b\u8981\u7528\u4e8e\u79d1\u5b66\u8ba1\u7b97\u548c\u6570\u636e\u5206\u6790\uff0c\u4f46\u5b83\u4eec\u4e5f\u63d0\u4f9b\u4e86\u4e00\u4e9b\u57fa\u672c\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u529f\u80fd\u3002<\/p>\n<\/p>\n
          import numpy as np<\/p>\n
          my_string = "Hello, World!"<\/p>\n
          length = np.char.str_len(my_string)<\/p>\n
          print(length)  # \u8f93\u51fa: 13<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
            \n
          • \u529f\u80fd\u4e30\u5bcc<\/strong>\uff1a\u7b2c\u4e09\u65b9\u5e93\u901a\u5e38\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u51fd\u6570\uff0c\u9002\u7528\u4e8e\u590d\u6742\u6570\u636e\u5904\u7406\u3002<\/li>\n
          • \u9ad8\u6548<\/strong>\uff1a\u8fd9\u4e9b\u5e93\u5728\u5904\u7406\u5927\u6570\u636e\u65f6\u8868\u73b0\u4f18\u5f02\u3002<\/li>\n<\/ul>\n
            \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
              \n
            • \u4f9d\u8d56\u6027<\/strong>\uff1a\u9700\u8981\u5b89\u88c5\u989d\u5916\u7684\u5e93\uff0c\u589e\u52a0\u4e86\u9879\u76ee\u7684\u4f9d\u8d56\u6027\u3002<\/li>\n
            • \u590d\u6742\u5ea6<\/strong>\uff1a\u5bf9\u4e8e\u7b80\u5355\u4efb\u52a1\uff0c\u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u663e\u5f97\u8fc7\u4e8e\u590d\u6742\u3002<\/li>\n<\/ul>\n
              \u56db\u3001\u5904\u7406\u591a\u5b57\u8282\u5b57\u7b26<\/strong><\/h2>\n
              \u5728\u5904\u7406\u5305\u542b\u591a\u5b57\u8282\u5b57\u7b26\u7684\u5b57\u7b26\u4e32\u65f6\uff0c\u5982\u4e2d\u6587\u3001\u65e5\u6587\u3001\u97e9\u6587\u7b49\uff0clen()<\/code>\u51fd\u6570\u4f9d\u7136\u9002\u7528\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u5b57\u7b26\u7f16\u7801\u95ee\u9898\u3002\u5982\u679c\u9700\u8981\u6309\u7167\u5b57\u8282\u957f\u5ea6\u6765\u8ba1\u7b97\u5b57\u7b26\u4e32\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528encode()<\/code>\u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u8282\u6570\u7ec4\uff0c\u7136\u540e\u4f7f\u7528len()<\/code>\u51fd\u6570\u3002<\/p>\n<\/p>\n
              my_string = "\u4f60\u597d\uff0c\u4e16\u754c\uff01"<\/p>\n
              length = len(my_string.encode('utf-8'))<\/p>\n
              print(length)  # \u8f93\u51fa: 18<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u4f18\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                \n
              • \u7cbe\u786e<\/strong>\uff1a\u53ef\u4ee5\u51c6\u786e\u8ba1\u7b97\u5b57\u7b26\u4e32\u7684\u5b57\u8282\u957f\u5ea6\u3002<\/li>\n
              • \u7075\u6d3b<\/strong>\uff1a\u9002\u7528\u4e8e\u591a\u79cd\u5b57\u7b26\u7f16\u7801\u3002<\/li>\n<\/ul>\n
                \u7f3a\u70b9\uff1a<\/strong><\/p>\n<\/p>\n
                  \n
                • \u590d\u6742<\/strong>\uff1a\u9700\u8981\u4e86\u89e3\u5b57\u7b26\u7f16\u7801\u7684\u57fa\u672c\u77e5\u8bc6\u3002<\/li>\n<\/ul>\n
                  \u4e94\u3001\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u5e94\u7528\u573a\u666f<\/strong><\/h2>\n
                  \u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u8ba1\u7b97\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u6709\u5f88\u591a\u5e94\u7528\u573a\u666f\uff0c\u5982\u8f93\u5165\u9a8c\u8bc1\u3001\u6570\u636e\u6e05\u6d17\u3001\u6587\u672c\u5206\u6790\u7b49\u3002\u4e0b\u9762\u5217\u4e3e\u51e0\u4e2a\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n<\/p>\n
                  1\u3001\u8f93\u5165\u9a8c\u8bc1<\/h2>\n<\/p>\n
                  \u5728\u7528\u6237\u8f93\u5165\u6570\u636e\u65f6\uff0c\u901a\u5e38\u9700\u8981\u9a8c\u8bc1\u8f93\u5165\u7684\u957f\u5ea6\u662f\u5426\u5728\u5141\u8bb8\u8303\u56f4\u5185\u3002\u4f7f\u7528len()<\/code>\u51fd\u6570\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n
                  def validate_input(user_input):<\/p>\n
                      if len(user_input) < 5:<\/p>\n
                          return "\u8f93\u5165\u592a\u77ed"<\/p>\n
                      elif len(user_input) > 20:<\/p>\n
                          return "\u8f93\u5165\u592a\u957f"<\/p>\n
                      else:<\/p>\n
                          return "\u8f93\u5165\u6709\u6548"<\/p>\n
                  user_input = input("\u8bf7\u8f93\u5165\u5b57\u7b26\u4e32: ")<\/p>\n
                  print(validate_input(user_input))<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  2\u3001\u6570\u636e\u6e05\u6d17<\/h2>\n<\/p>\n
                  \u5728\u5904\u7406\u6570\u636e\u65f6\uff0c\u901a\u5e38\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u6e05\u6d17\uff0c\u6bd4\u5982\u53bb\u9664\u7a7a\u683c\u3001\u53bb\u9664\u7279\u6b8a\u5b57\u7b26\u7b49\u3002\u5728\u6e05\u6d17\u8fc7\u7a0b\u4e2d\uff0c\u8ba1\u7b97\u5b57\u7b26\u4e32\u957f\u5ea6\u662f\u4e00\u4e2a\u91cd\u8981\u6b65\u9aa4\u3002<\/p>\n<\/p>\n
                  def clean_string(s):<\/p>\n
                      cleaned = s.strip().replace('\\n', '').replace('\\t', '')<\/p>\n
                      return cleaned, len(cleaned)<\/p>\n
                  raw_string = "   Hello, World!   \\n"<\/p>\n
                  cleaned_string, length = clean_string(raw_string)<\/p>\n
                  print(f"Cleaned String: '{cleaned_string}', Length: {length}")<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  3\u3001\u6587\u672c\u5206\u6790<\/h2>\n<\/p>\n
                  \u5728\u6587\u672c\u5206\u6790\u4e2d\uff0c\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u8ba1\u7b97\u53ef\u4ee5\u7528\u4e8e\u7edf\u8ba1\u6587\u672c\u4fe1\u606f\uff0c\u6bd4\u5982\u5e73\u5747\u957f\u5ea6\u3001\u6700\u957f\u5b57\u7b26\u4e32\u7b49\u3002<\/p>\n<\/p>\n
                  texts = ["Hello", "World", "Python", "Programming"]<\/p>\n
                  lengths = [len(text) for text in texts]<\/p>\n
                  average_length = sum(lengths) \/ len(lengths)<\/p>\n
                  print(f"\u5e73\u5747\u957f\u5ea6: {average_length}")<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u516d\u3001\u6027\u80fd\u5bf9\u6bd4<\/strong><\/h2>\n
                  \u5728\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u65f6\uff0c\u6027\u80fd\u662f\u4e00\u4e2a\u91cd\u8981\u8003\u8651\u56e0\u7d20\u3002\u4e0b\u9762\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u6027\u80fd\u6d4b\u8bd5\u6765\u6bd4\u8f83len()<\/code>\u51fd\u6570\u548c\u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u6548\u7387\u3002<\/p>\n<\/p>\n
                  import time<\/p>\n
                  def custom_len(s):<\/p>\n
                      count = 0<\/p>\n
                      for char in s:<\/p>\n
                          count += 1<\/p>\n
                      return count<\/p>\n
                  large_string = "a" * 1000000<\/p>\n
                  \u6d4b\u8bd5 len() \u51fd\u6570<\/strong><\/h2>\n
                  start_time = time.time()<\/p>\n
                  len_result = len(large_string)<\/p>\n
                  end_time = time.time()<\/p>\n
                  print(f"len() \u51fd\u6570\u8017\u65f6: {end_time - start_time} \u79d2")<\/p>\n
                  \u6d4b\u8bd5\u81ea\u5b9a\u4e49\u51fd\u6570<\/strong><\/h2>\n
                  start_time = time.time()<\/p>\n
                  custom_len_result = custom_len(large_string)<\/p>\n
                  end_time = time.time()<\/p>\n
                  print(f"\u81ea\u5b9a\u4e49\u51fd\u6570\u8017\u65f6: {end_time - start_time} \u79d2")<\/p>\n
                  <\/code><\/pre>\n<\/p>\n
                  \u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u89c2\u5730\u770b\u5230len()<\/code>\u51fd\u6570\u5728\u5904\u7406\u5927\u89c4\u6a21\u5b57\u7b26\u4e32\u65f6\u7684\u6548\u7387\u8fdc\u9ad8\u4e8e\u81ea\u5b9a\u4e49\u51fd\u6570\u3002<\/p>\n<\/p>\n
                  \u4e03\u3001\u603b\u7ed3<\/strong><\/h2>\n
                  Python\u4e2d\u6c42\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528len()<\/code>\u51fd\u6570\u3001\u81ea\u5b9a\u4e49\u51fd\u6570\u3001\u7b2c\u4e09\u65b9\u5e93\u7b49\u65b9\u6cd5\u3002<\/strong>\u6700\u5e38\u7528\u4e14\u6700\u7b80\u5355\u7684\u662f\u5185\u7f6e\u7684len()<\/code>\u51fd\u6570\uff0c\u5176\u6b21\u662f\u81ea\u5b9a\u4e49\u51fd\u6570\u548c\u7b2c\u4e09\u65b9\u5e93\u3002\u4e0d\u540c\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\uff0c\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002\u5728\u5904\u7406\u591a\u5b57\u8282\u5b57\u7b26\u65f6\uff0c\u9700\u8981\u7279\u522b\u6ce8\u610f\u5b57\u7b26\u7f16\u7801\u95ee\u9898\u3002\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u8ba1\u7b97\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u6709\u5e7f\u6cdb\u5e94\u7528\uff0c\u5982\u8f93\u5165\u9a8c\u8bc1\u3001\u6570\u636e\u6e05\u6d17\u3001\u6587\u672c\u5206\u6790\u7b49\u3002\u901a\u8fc7\u6027\u80fd\u5bf9\u6bd4\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230len()<\/code>\u51fd\u6570\u5728\u5904\u7406\u5927\u89c4\u6a21\u5b57\u7b26\u4e32\u65f6\u5177\u6709\u660e\u663e\u7684\u4f18\u52bf\u3002\u56e0\u6b64\uff0c\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u5efa\u8bae\u4f18\u5148\u4f7f\u7528len()<\/code>\u51fd\u6570\u6765\u8ba1\u7b97\u5b57\u7b26\u4e32\u957f\u5ea6\u3002<\/p>\n<\/p>\n
                  \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
                   \u5982\u4f55\u5728Python\u4e2d\u8ba1\u7b97\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff1f<\/strong>
                  \u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684len()<\/code>\u51fd\u6570\u6765\u8ba1\u7b97\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002\u53ea\u9700\u5c06\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u8be5\u51fd\u6570\uff0c\u5b83\u5c06\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u6570\u3002\u4f8b\u5982\uff0clen("Hello, World!")<\/code>\u5c06\u8fd4\u56de13\uff0c\u56e0\u4e3a\u8be5\u5b57\u7b26\u4e32\u5305\u542b13\u4e2a\u5b57\u7b26\uff0c\u5305\u62ec\u7a7a\u683c\u548c\u6807\u70b9\u7b26\u53f7\u3002<\/p>\n
                  \u5728Python\u4e2d\uff0c\u7a7a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u662f\u591a\u5c11\uff1f<\/strong>
                  \u7a7a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u4e3a0\u3002\u8fd9\u610f\u5473\u7740\u5982\u679c\u4f60\u4f7f\u7528len("")<\/code>\uff0c\u7ed3\u679c\u5c06\u4f1a\u662f0\u3002\u8fd9\u5728\u5904\u7406\u5b57\u7b26\u4e32\u65f6\u975e\u5e38\u6709\u7528\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4e3a\u7a7a\uff0c\u4ece\u800c\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u3002<\/p>\n
                  \u5982\u679c\u5b57\u7b26\u4e32\u4e2d\u5305\u542bUnicode\u5b57\u7b26\uff0c\u5982\u4f55\u8ba1\u7b97\u957f\u5ea6\uff1f<\/strong>
                  \u5728Python\u4e2d\uff0clen()<\/code>\u51fd\u6570\u5c06\u8ba1\u7b97\u5b57\u7b26\u4e32\u4e2d\u5b57\u7b26\u7684\u6570\u91cf\uff0c\u800c\u4e0d\u7ba1\u8fd9\u4e9b\u5b57\u7b26\u662fASCII\u5b57\u7b26\u8fd8\u662fUnicode\u5b57\u7b26\u3002\u4f8b\u5982\uff0clen("\u4f60\u597d")<\/code>\u5c06\u8fd4\u56de2\uff0c\u56e0\u4e3a\u201c\u4f60\u201d\u548c\u201c\u597d\u201d\u5404\u5360\u4e00\u4e2a\u5b57\u7b26\u3002\u56e0\u6b64\uff0c\u65e0\u8bba\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u4f55\u79cd\u5b57\u7b26\uff0clen()<\/code>\u51fd\u6570\u90fd\u80fd\u51c6\u786e\u8fd4\u56de\u5176\u957f\u5ea6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u6c42\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684len()\u51fd\u6570\u3001\u5229\u7528\u81ea\u5b9a\u4e49\u51fd\u6570\u904d\u5386\u5b57\u7b26\u4e32\u8ba1\u7b97\u957f\u5ea6\u3001\u6216\u8005\u4f7f\u7528\u7b2c\u4e09 […]","protected":false},"author":3,"featured_media":1146312,"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\/1146302"}],"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=1146302"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1146302\/revisions"}],"predecessor-version":[{"id":1146314,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1146302\/revisions\/1146314"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1146312"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1146302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1146302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1146302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}