{"id":1180512,"date":"2025-01-15T18:37:38","date_gmt":"2025-01-15T10:37:38","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1180512.html"},"modified":"2025-01-15T18:37:41","modified_gmt":"2025-01-15T10:37:41","slug":"%e5%a6%82%e4%bd%95%e7%94%a8python%e7%bb%99%e6%95%b0%e5%80%bc%e6%8e%92%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1180512.html","title":{"rendered":"\u5982\u4f55\u7528python\u7ed9\u6570\u503c\u6392\u5e8f"},"content":{"rendered":"

\"\u5982\u4f55\u7528python\u7ed9\u6570\u503c\u6392\u5e8f\"<\/p>\n

\u4f7f\u7528Python\u7ed9\u6570\u503c\u6392\u5e8f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u4e3b\u8981\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684sort()\u65b9\u6cd5\u3001\u4f7f\u7528sorted()\u51fd\u6570\u3001\u5b9e\u73b0\u81ea\u5b9a\u4e49\u6392\u5e8f\u51fd\u6570<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u4f7f\u7528\u8fd9\u51e0\u79cd\u65b9\u6cd5\u6765\u7ed9\u6570\u503c\u6392\u5e8f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528\u5185\u7f6e\u7684sort()\u65b9\u6cd5<\/h3>\n<\/p>\n

Python\u7684list\u5bf9\u8c61\u6709\u4e00\u4e2a\u5185\u7f6e\u7684sort()\u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u5bf9\u5217\u8868\u8fdb\u884c\u539f\u5730\u6392\u5e8f\uff0c\u8fd9\u610f\u5473\u7740\u6392\u5e8f\u64cd\u4f5c\u4f1a\u76f4\u63a5\u4fee\u6539\u539f\u59cb\u5217\u8868\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u7684\u6b65\u9aa4\u548c\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n

    \n
  1. \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6570\u503c\u7684\u5217\u8868\u3002<\/li>\n
  2. \u8c03\u7528\u5217\u8868\u7684sort()\u65b9\u6cd5\u3002<\/li>\n<\/ol>\n

    numbers = [5, 2, 9, 1, 5, 6]<\/p>\n
    numbers.sort()<\/p>\n
    print(numbers)  # \u8f93\u51fa: [1, 2, 5, 5, 6, 9]<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    sort()\u65b9\u6cd5\u7684\u5173\u952e\u53c2\u6570<\/strong><\/p>\n<\/p>\n
      \n
    • reverse<\/code>: \u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u9ed8\u8ba4\u4e3aFalse\u3002\u5f53\u8bbe\u7f6e\u4e3aTrue\u65f6\uff0c\u5217\u8868\u5c06\u6309\u964d\u5e8f\u6392\u5e8f\u3002<\/li>\n<\/ul>\n
      numbers.sort(reverse=True)<\/p>\n
      print(numbers)  # \u8f93\u51fa: [9, 6, 5, 5, 2, 1]<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      sort()\u65b9\u6cd5\u7684\u4f18\u70b9<\/strong><\/p>\n<\/p>\n
        \n
      • \u539f\u5730\u6392\u5e8f<\/strong>\uff1a\u4e0d\u9700\u8981\u989d\u5916\u7684\u5185\u5b58\u6765\u5b58\u50a8\u6392\u5e8f\u540e\u7684\u5217\u8868\u3002<\/li>\n
      • \u9ad8\u6548<\/strong>\uff1a\u4f7f\u7528\u4e86Timsort\u7b97\u6cd5\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(n log n)\u3002<\/li>\n<\/ul>\n
        \u4e8c\u3001\u4f7f\u7528sorted()\u51fd\u6570<\/h3>\n<\/p>\n
        sorted()\u51fd\u6570\u4e0esort()\u65b9\u6cd5\u7c7b\u4f3c\uff0c\u4f46\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5217\u8868\uff0c\u800c\u4e0d\u4f1a\u4fee\u6539\u539f\u59cb\u5217\u8868\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u7684\u6b65\u9aa4\u548c\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
          \n
        1. \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6570\u503c\u7684\u5217\u8868\u3002<\/li>\n
        2. \u8c03\u7528sorted()\u51fd\u6570\uff0c\u5e76\u4f20\u5165\u9700\u8981\u6392\u5e8f\u7684\u5217\u8868\u3002<\/li>\n<\/ol>\n
          numbers = [5, 2, 9, 1, 5, 6]<\/p>\n
          sorted_numbers = sorted(numbers)<\/p>\n
          print(sorted_numbers)  # \u8f93\u51fa: [1, 2, 5, 5, 6, 9]<\/p>\n
          print(numbers)  # \u8f93\u51fa: [5, 2, 9, 1, 5, 6]\uff0c\u539f\u59cb\u5217\u8868\u4e0d\u53d8<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          sorted()\u51fd\u6570\u7684\u5173\u952e\u53c2\u6570<\/strong><\/p>\n<\/p>\n
            \n
          • reverse<\/code>: \u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u9ed8\u8ba4\u4e3aFalse\u3002\u5f53\u8bbe\u7f6e\u4e3aTrue\u65f6\uff0c\u5217\u8868\u5c06\u6309\u964d\u5e8f\u6392\u5e8f\u3002<\/li>\n
          • key<\/code>: \u4e00\u4e2a\u51fd\u6570\uff0c\u7528\u4e8e\u6307\u5b9a\u6392\u5e8f\u7684\u4f9d\u636e\u3002<\/li>\n<\/ul>\n
            sorted_numbers = sorted(numbers, reverse=True)<\/p>\n
            print(sorted_numbers)  # \u8f93\u51fa: [9, 6, 5, 5, 2, 1]<\/p>\n
            <\/code><\/pre>\n<\/p>\n
            \u4f7f\u7528key\u53c2\u6570\u8fdb\u884c\u81ea\u5b9a\u4e49\u6392\u5e8f<\/strong><\/p>\n<\/p>\n
            # \u6309\u6570\u503c\u7684\u7edd\u5bf9\u503c\u8fdb\u884c\u6392\u5e8f<\/p>\n
            numbers = [-5, 2, -9, 1, -5, 6]<\/p>\n
            sorted_numbers = sorted(numbers, key=abs)<\/p>\n
            print(sorted_numbers)  # \u8f93\u51fa: [1, 2, -5, -5, 6, -9]<\/p>\n
            <\/code><\/pre>\n<\/p>\n
            sorted()\u51fd\u6570\u7684\u4f18\u70b9<\/strong><\/p>\n<\/p>\n
              \n
            • \u4e0d\u4f1a\u4fee\u6539\u539f\u59cb\u5217\u8868<\/strong>\uff1a\u66f4\u5b89\u5168\uff0c\u5c24\u5176\u5728\u9700\u8981\u4fdd\u7559\u539f\u59cb\u6570\u636e\u7684\u573a\u666f\u4e2d\u3002<\/li>\n
            • \u7075\u6d3b\u6027<\/strong>\uff1a\u53ef\u4ee5\u901a\u8fc7key\u53c2\u6570\u5b9e\u73b0\u590d\u6742\u7684\u81ea\u5b9a\u4e49\u6392\u5e8f\u3002<\/li>\n<\/ul>\n
              \u4e09\u3001\u5b9e\u73b0\u81ea\u5b9a\u4e49\u6392\u5e8f\u51fd\u6570<\/h3>\n<\/p>\n
              \u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u6839\u636e\u7279\u5b9a\u7684\u89c4\u5219\u8fdb\u884c\u6392\u5e8f\uff0c\u8fd9\u65f6\u53ef\u4ee5\u5b9e\u73b0\u81ea\u5b9a\u4e49\u6392\u5e8f\u51fd\u6570\uff0c\u5e76\u5c06\u5176\u4f20\u9012\u7ed9sort()\u65b9\u6cd5\u6216sorted()\u51fd\u6570\u7684key\u53c2\u6570\u3002<\/p>\n<\/p>\n
              \u793a\u4f8b\uff1a\u6309\u5143\u7ec4\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20\u6392\u5e8f<\/strong><\/p>\n<\/p>\n
              # \u6309\u5143\u7ec4\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20\u8fdb\u884c\u6392\u5e8f<\/p>\n
              data = [(1, 2), (3, 3), (2, 1)]<\/p>\n
              \u5b9a\u4e49\u4e00\u4e2a\u81ea\u5b9a\u4e49\u6392\u5e8f\u51fd\u6570<\/strong><\/h2>\n
              def custom_sort(t):<\/p>\n
                  return t[1]<\/p>\n
              sorted_data = sorted(data, key=custom_sort)<\/p>\n
              print(sorted_data)  # \u8f93\u51fa: [(2, 1), (1, 2), (3, 3)]<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u793a\u4f8b\uff1a\u6309\u5b57\u7b26\u4e32\u957f\u5ea6\u8fdb\u884c\u6392\u5e8f<\/strong><\/p>\n<\/p>\n
              words = ["apple", "banana", "cherry", "date"]<\/p>\n
              \u4f7f\u7528lambda\u51fd\u6570\u4f5c\u4e3a\u81ea\u5b9a\u4e49\u6392\u5e8f\u51fd\u6570<\/strong><\/h2>\n
              sorted_words = sorted(words, key=lambda w: len(w))<\/p>\n
              print(sorted_words)  # \u8f93\u51fa: ['date', 'apple', 'banana', 'cherry']<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u56db\u3001\u4f7f\u7528\u5916\u90e8\u5e93\u8fdb\u884c\u6392\u5e8f<\/h3>\n<\/p>\n
              \u9664\u4e86Python\u5185\u7f6e\u7684\u6392\u5e8f\u65b9\u6cd5\u5916\uff0c\u67d0\u4e9b\u5916\u90e8\u5e93\u5982NumPy\u548cPandas\u4e5f\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6392\u5e8f\u529f\u80fd\uff0c\u7279\u522b\u9002\u7528\u4e8e\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u3002<\/p>\n<\/p>\n
              1\u3001\u4f7f\u7528NumPy\u8fdb\u884c\u6392\u5e8f<\/h4>\n<\/p>\n
              NumPy\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u79d1\u5b66\u8ba1\u7b97\u5e93\uff0c\u9002\u7528\u4e8e\u5904\u7406\u5927\u578b\u6570\u7ec4\u548c\u77e9\u9635\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528NumPy\u8fdb\u884c\u6392\u5e8f\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
              import numpy as np<\/p>\n
              numbers = np.array([5, 2, 9, 1, 5, 6])<\/p>\n
              sorted_numbers = np.sort(numbers)<\/p>\n
              print(sorted_numbers)  # \u8f93\u51fa: [1 2 5 5 6 9]<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u6309\u6307\u5b9a\u8f74\u6392\u5e8f<\/strong><\/p>\n<\/p>\n
              matrix = np.array([[3, 7, 2], [5, 1, 9]])<\/p>\n
              sorted_matrix = np.sort(matrix, axis=1)<\/p>\n
              print(sorted_matrix)<\/p>\n
              \u8f93\u51fa:<\/strong><\/h2>\n
              [[2 3 7]<\/strong><\/h2>\n
               [1 5 9]]<\/strong><\/h2>\n
              <\/code><\/pre>\n<\/p>\n
              2\u3001\u4f7f\u7528Pandas\u8fdb\u884c\u6392\u5e8f<\/h4>\n<\/p>\n
              Pandas\u662f\u4e00\u4e2a\u6570\u636e\u5206\u6790\u5e93\uff0c\u5e38\u7528\u4e8e\u5904\u7406\u7ed3\u6784\u5316\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Pandas\u8fdb\u884c\u6392\u5e8f\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
              import pandas as pd<\/p>\n
              data = {'Name': ['Alice', 'Bob', 'Charlie'],<\/p>\n
                      'Age': [25, 30, 35]}<\/p>\n
              df = pd.DataFrame(data)<\/p>\n
              \u6309\u5e74\u9f84\u8fdb\u884c\u6392\u5e8f<\/strong><\/h2>\n
              sorted_df = df.sort_values(by='Age')<\/p>\n
              print(sorted_df)<\/p>\n
              \u8f93\u51fa:<\/strong><\/h2>\n
                    Name  Age<\/strong><\/h2>\n
              0    Alice   25<\/strong><\/h2>\n
              1      Bob   30<\/strong><\/h2>\n
              2  Charlie   35<\/strong><\/h2>\n
              <\/code><\/pre>\n<\/p>\n
              \u6309\u591a\u4e2a\u5217\u8fdb\u884c\u6392\u5e8f<\/strong><\/p>\n<\/p>\n
              data = {'Name': ['Alice', 'Bob', 'Charlie', 'Alice'],<\/p>\n
                      'Age': [25, 30, 35, 25]}<\/p>\n
              df = pd.DataFrame(data)<\/p>\n
              \u6309\u540d\u5b57\u548c\u5e74\u9f84\u8fdb\u884c\u6392\u5e8f<\/strong><\/h2>\n
              sorted_df = df.sort_values(by=['Name', 'Age'])<\/p>\n
              print(sorted_df)<\/p>\n
              \u8f93\u51fa:<\/strong><\/h2>\n
                    Name  Age<\/strong><\/h2>\n
              0    Alice   25<\/strong><\/h2>\n
              3    Alice   25<\/strong><\/h2>\n
              1      Bob   30<\/strong><\/h2>\n
              2  Charlie   35<\/strong><\/h2>\n
              <\/code><\/pre>\n<\/p>\n
              \u4e94\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
              Python\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5bf9\u6570\u503c\u8fdb\u884c\u6392\u5e8f\uff0c\u4e3b\u8981\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684sort()\u65b9\u6cd5\u3001\u4f7f\u7528sorted()\u51fd\u6570\u3001\u5b9e\u73b0\u81ea\u5b9a\u4e49\u6392\u5e8f\u51fd\u6570<\/strong>\uff0c\u4ee5\u53ca\u4f7f\u7528\u5916\u90e8\u5e93\u5982NumPy\u548cPandas<\/strong>\u8fdb\u884c\u6392\u5e8f\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002sort()\u65b9\u6cd5\u548csorted()\u51fd\u6570\u7b80\u5355\u6613\u7528\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u57fa\u672c\u6392\u5e8f\u9700\u6c42\uff1b\u81ea\u5b9a\u4e49\u6392\u5e8f\u51fd\u6570\u5219\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u6392\u5e8f\u89c4\u5219\uff1b\u5916\u90e8\u5e93\u5982NumPy\u548cPandas\u5219\u9002\u7528\u4e8e\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u548c\u7ed3\u6784\u5316\u6570\u636e<\/strong>\u3002\u901a\u8fc7\u5408\u7406\u9009\u62e9\u548c\u7ec4\u5408\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u5b8c\u6210\u5404\u79cd\u6392\u5e8f\u4efb\u52a1\u3002<\/p>\n<\/p>\n
              \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
               \u5982\u4f55\u4f7f\u7528Python\u5bf9\u6570\u503c\u8fdb\u884c\u6392\u5e8f\uff1f<\/strong>
              Python\u63d0\u4f9b\u4e86\u5185\u7f6e\u7684\u6392\u5e8f\u529f\u80fd\uff0c\u53ef\u4ee5\u4f7f\u7528sorted()<\/code>\u51fd\u6570\u6216\u8005\u5217\u8868\u7684sort()<\/code>\u65b9\u6cd5\u3002sorted()<\/code>\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5df2\u6392\u5e8f\u5217\u8868\uff0c\u800csort()<\/code>\u65b9\u6cd5\u5219\u662f\u5bf9\u539f\u5217\u8868\u8fdb\u884c\u6392\u5e8f\u3002\u4e24\u8005\u90fd\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u53c2\u6570\u5982reverse=True<\/code>\u6765\u5b9e\u73b0\u964d\u5e8f\u6392\u5e8f\u3002<\/p>\n
              \u5728\u6392\u5e8f\u65f6\uff0cPython\u652f\u6301\u54ea\u4e9b\u7c7b\u578b\u7684\u6570\u636e\uff1f<\/strong>
              \u9664\u4e86\u57fa\u672c\u7684\u6570\u5b57\u7c7b\u578b\uff0cPython\u8fd8\u53ef\u4ee5\u5bf9\u5b57\u7b26\u4e32\u3001\u5143\u7ec4\u53ca\u5176\u4ed6\u53ef\u8fed\u4ee3\u5bf9\u8c61\u8fdb\u884c\u6392\u5e8f\u3002\u5bf9\u4e8e\u590d\u6742\u6570\u636e\u7ed3\u6784\uff0c\u5982\u5b57\u5178\u6216\u81ea\u5b9a\u4e49\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528key<\/code>\u53c2\u6570\u81ea\u5b9a\u4e49\u6392\u5e8f\u89c4\u5219\uff0c\u4ee5\u5b9e\u73b0\u5bf9\u7279\u5b9a\u5b57\u6bb5\u6216\u5c5e\u6027\u7684\u6392\u5e8f\u3002<\/p>\n
              \u5982\u4f55\u5904\u7406\u5305\u542b\u91cd\u590d\u503c\u7684\u5217\u8868\u6392\u5e8f\uff1f<\/strong>
              Python\u7684\u6392\u5e8f\u529f\u80fd\u4f1a\u81ea\u52a8\u5904\u7406\u91cd\u590d\u503c\uff0c\u6392\u5e8f\u540e\u76f8\u540c\u7684\u6570\u503c\u5c06\u4fdd\u6301\u76f8\u5bf9\u4f4d\u7f6e\u4e0d\u53d8\uff0c\u786e\u4fdd\u7a33\u5b9a\u6027\u3002\u5982\u679c\u9700\u8981\u8fdb\u4e00\u6b65\u5904\u7406\u91cd\u590d\u503c\uff0c\u6bd4\u5982\u53bb\u91cd\uff0c\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528set()<\/code>\u51fd\u6570\u6216\u5217\u8868\u63a8\u5bfc\u5f0f\u6765\u5b9e\u73b0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u4f7f\u7528Python\u7ed9\u6570\u503c\u6392\u5e8f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u4e3b\u8981\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684sort()\u65b9\u6cd5\u3001\u4f7f\u7528sorted()\u51fd\u6570 […]","protected":false},"author":3,"featured_media":1180518,"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\/1180512"}],"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=1180512"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1180512\/revisions"}],"predecessor-version":[{"id":1180522,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1180512\/revisions\/1180522"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1180518"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1180512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1180512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1180512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}