{"id":2240,"date":"2026-04-29T16:16:33","date_gmt":"2026-04-29T08:16:33","guid":{"rendered":"http:\/\/www.preluna.xyz\/?p=2240"},"modified":"2026-04-29T17:31:14","modified_gmt":"2026-04-29T09:31:14","slug":"%e5%88%97%e8%a1%a8%e5%b5%8c%e5%a5%97%e5%88%97%e8%a1%a8%e8%a3%85%e9%a5%b0%e5%99%a8-decorator","status":"publish","type":"post","link":"http:\/\/www.preluna.xyz\/index.php\/2026\/04\/29\/%e5%88%97%e8%a1%a8%e5%b5%8c%e5%a5%97%e5%88%97%e8%a1%a8%e8%a3%85%e9%a5%b0%e5%99%a8-decorator\/preluna\/text\/","title":{"rendered":"\u5217\u8868\u5d4c\u5957\u5217\u8868+\u88c5\u9970\u5668 decorator"},"content":{"rendered":"\n
\"\"<\/div><\/figure>\n\n\n\n

1. \u9898\u76ee\u8003\u70b9<\/h2>\n\n\n\n

\u8fd9\u9053\u9898\u4e3b\u8981\u8003 4 \u4e2a\u70b9\uff1a<\/p>\n\n\n\n

    \n
  1. \u5217\u8868\u5d4c\u5957\u5217\u8868<\/strong>
    \u6bcf\u4e2a\u4eba\u7684\u4fe1\u606f\u4f1a\u88ab\u8bfb\u6210\u4e00\u4e2a\u5c0f\u5217\u8868\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n
    [\"Mike\", \"Thomson\", \"20\", \"M\"]\n<\/code><\/pre>\n\n\n\n
    \u591a\u4eba\u4fe1\u606f\u5c31\u662f\uff1a<\/p>\n\n\n\n
    [\n    [\"Mike\", \"Thomson\", \"20\", \"M\"],\n    [\"Robert\", \"Bustle\", \"32\", \"M\"],\n    [\"Andria\", \"Bustle\", \"30\", \"F\"]\n]\n<\/code><\/pre>\n\n\n\n
      \n
    1. \u6392\u5e8f<\/strong>
      \u8981\u6309\u7167\u5e74\u9f84\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\u3002<\/li>\n\n\n\n
    2. \u5b57\u7b26\u4e32\u683c\u5f0f\u5316<\/strong>
      \u7537\u6027\u524d\u9762\u52a0 Mr.<\/code>\uff0c\u5973\u6027\u524d\u9762\u52a0 Ms.<\/code>\u3002<\/li>\n\n\n\n
    3. \u88c5\u9970\u5668 decorator<\/strong>
      \u9898\u76ee\u8981\u6c42\u4f60\u7528\u88c5\u9970\u5668\u628a\u201c\u6392\u5e8f\u903b\u8f91\u201d\u5305\u5728\u5916\u5c42\uff0c\u628a\u201c\u5355\u4e2a\u4eba\u540d\u683c\u5f0f\u5316\u903b\u8f91\u201d\u7559\u7ed9\u539f\u51fd\u6570\u3002<\/li>\n<\/ol>\n\n\n\n
      \n\n\n\n
      2. \u5ba1\u9898<\/h2>\n\n\n\n
      \u9898\u76ee\u7ed9\u4f60 N<\/code> \u4e2a\u4eba\u7684\u4fe1\u606f\u3002\u6bcf\u4e2a\u4eba\u4e00\u884c\uff0c\u5305\u542b\uff1a<\/p>\n\n\n\n
      first_name last_name age sex\n<\/code><\/pre>\n\n\n\n
      \u4f8b\u5982\uff1a<\/p>\n\n\n\n
      Mike Thomson 20 M\n<\/code><\/pre>\n\n\n\n
      \u542b\u4e49\u662f\uff1a<\/p>\n\n\n\n
      \u4f4d\u7f6e<\/th>\u542b\u4e49<\/th><\/tr><\/thead>
      person[0]<\/code><\/td>\u540d\u5b57 first name<\/td><\/tr>
      person[1]<\/code><\/td>\u59d3\u6c0f last name<\/td><\/tr>
      person[2]<\/code><\/td>\u5e74\u9f84 age<\/td><\/tr>
      person[3]<\/code><\/td>\u6027\u522b sex<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \u8f93\u51fa\u65f6\u8981\u53d8\u6210\uff1a<\/p>\n\n\n\n
      Mr. Mike Thomson\n<\/code><\/pre>\n\n\n\n
      \u6216\u8005\uff1a<\/p>\n\n\n\n
      Ms. Andria Bustle\n<\/code><\/pre>\n\n\n\n
      \u6392\u5e8f\u89c4\u5219\u662f\uff1a<\/p>\n\n\n\n
        \n
      1. \u6309\u5e74\u9f84\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\uff1b<\/li>\n\n\n\n
      2. \u5982\u679c\u4e24\u4e2a\u4eba\u5e74\u9f84\u4e00\u6837\uff0c\u4fdd\u6301\u539f\u6765\u7684\u8f93\u5165\u987a\u5e8f\u3002<\/li>\n<\/ol>\n\n\n\n
        Python \u7684 sorted()<\/code> \u672c\u8eab\u662f\u7a33\u5b9a\u6392\u5e8f\uff0c\u6240\u4ee5\u5e74\u9f84\u76f8\u540c\u7684\u4eba\u4f1a\u81ea\u52a8\u4fdd\u6301\u539f\u8f93\u5165\u987a\u5e8f\u3002<\/p>\n\n\n\n
        \n\n\n\n
        3. \u601d\u8def\u63d0\u793a<\/h2>\n\n\n\n
        \u5148\u4e0d\u8981\u6025\u7740\u5199\u4ee3\u7801\u3002\u4f60\u53ef\u4ee5\u628a\u8fd9\u9053\u9898\u62c6\u6210\u4e24\u4e2a\u4efb\u52a1\u3002<\/p>\n\n\n\n
        \u7b2c\u4e00\u4e2a\u4efb\u52a1\uff1a\u600e\u4e48\u628a\u4e00\u4e2a\u4eba\u683c\u5f0f\u5316\u6210\u540d\u5b57\uff1f<\/strong><\/p>\n\n\n\n
        \u4f8b\u5982\uff1a<\/p>\n\n\n\n
        [\"Mike\", \"Thomson\", \"20\", \"M\"]\n<\/code><\/pre>\n\n\n\n
        \u5982\u679c\u6027\u522b\u662f M<\/code>\uff0c\u8f93\u51fa\uff1a<\/p>\n\n\n\n
        Mr. Mike Thomson\n<\/code><\/pre>\n\n\n\n
        \u5982\u679c\u6027\u522b\u662f F<\/code>\uff0c\u8f93\u51fa\uff1a<\/p>\n\n\n\n
        Ms. Mary George\n<\/code><\/pre>\n\n\n\n
        \u7b2c\u4e8c\u4e2a\u4efb\u52a1\uff1a\u600e\u4e48\u5148\u6309\u5e74\u9f84\u6392\u5e8f\uff0c\u518d\u9010\u4e2a\u683c\u5f0f\u5316\uff1f<\/strong><\/p>\n\n\n\n
        \u4e5f\u5c31\u662f\u5148\u628a\uff1a<\/p>\n\n\n\n
        [\n    [\"Mike\", \"Thomson\", \"20\", \"M\"],\n    [\"Robert\", \"Bustle\", \"32\", \"M\"],\n    [\"Andria\", \"Bustle\", \"30\", \"F\"]\n]\n<\/code><\/pre>\n\n\n\n
        \u6309\u7167 person[2]<\/code> \u5e74\u9f84\u6392\u5e8f\u3002<\/p>\n\n\n\n
        \u6ce8\u610f\uff1aperson[2]<\/code> \u662f\u5b57\u7b26\u4e32\uff0c\u6bd4\u5982 \"20\"<\/code>\uff0c\u6240\u4ee5\u6392\u5e8f\u65f6\u6700\u597d\u8f6c\u6210\u6574\u6570\uff1a<\/p>\n\n\n\n
        int(person[2])\n<\/code><\/pre>\n\n\n\n
        \n\n\n\n
        4. \u5b8c\u6574\u8bbe\u8ba1\u601d\u8def<\/h2>\n\n\n\n
        \u9898\u76ee\u901a\u5e38\u4f1a\u7ed9\u4f60\u8fd9\u6837\u7684\u6a21\u677f\uff1a<\/p>\n\n\n\n
        def person_lister(f):\n    def inner(people):\n        # complete the function\n    return inner\n\n@person_lister\ndef name_format(person):\n    return (\"Mr. \" if person[3] == \"M\" else \"Ms. \") + person[0] + \" \" + person[1]\n<\/code><\/pre>\n\n\n\n
        \u8fd9\u91cc\u6700\u5173\u952e\u7684\u662f\u7406\u89e3\u8fd9\u53e5\uff1a<\/p>\n\n\n\n
        @person_lister\n<\/code><\/pre>\n\n\n\n
        \u5b83\u7684\u610f\u601d\u76f8\u5f53\u4e8e\uff1a<\/p>\n\n\n\n
        name_format = person_lister(name_format)\n<\/code><\/pre>\n\n\n\n
        \u4e5f\u5c31\u662f\u8bf4\uff0c\u539f\u6765\u7684 name_format<\/code> \u51fd\u6570\u4f1a\u88ab\u4f20\u8fdb person_lister(f)<\/code> \u91cc\u9762\uff0c\u53d8\u6210\u53c2\u6570 f<\/code>\u3002<\/p>\n\n\n\n
        \u6240\u4ee5\uff1a<\/p>\n\n\n\n
        f(person)\n<\/code><\/pre>\n\n\n\n
        \u5176\u5b9e\u5c31\u662f\u5728\u8c03\u7528\u539f\u6765\u7684\uff1a<\/p>\n\n\n\n
        name_format(person)\n<\/code><\/pre>\n\n\n\n
        \u56e0\u6b64 inner(people)<\/code> \u91cc\u9762\u5e94\u8be5\u505a\u4e09\u4ef6\u4e8b\uff1a<\/p>\n\n\n\n
        \u7b2c\u4e00\u6b65\uff0c\u63a5\u6536\u6240\u6709\u4eba\u7684\u4fe1\u606f\uff1a<\/p>\n\n\n\n
        people\n<\/code><\/pre>\n\n\n\n
        \u7b2c\u4e8c\u6b65\uff0c\u6309\u7167\u5e74\u9f84\u6392\u5e8f\uff1a<\/p>\n\n\n\n
        sorted_people = sorted(people, key=lambda person: int(person[2]))\n<\/code><\/pre>\n\n\n\n
        \u7b2c\u4e09\u6b65\uff0c\u5bf9\u6392\u5e8f\u540e\u7684\u6bcf\u4e2a\u4eba\u8c03\u7528 f(person)<\/code>\uff0c\u5f97\u5230\u683c\u5f0f\u5316\u7ed3\u679c\uff1a<\/p>\n\n\n\n
        result = []\nfor person in sorted_people:\n    result.append(f(person))\n<\/code><\/pre>\n\n\n\n
        \u6700\u540e\u8fd4\u56de result<\/code>\u3002<\/p>\n\n\n\n
        \n\n\n\n
        5. \u4ee3\u7801\u5b9e\u73b0<\/h2>\n\n\n\n
        \u5b8c\u6574\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
        def person_lister(f):\n    def inner(people):\n        sorted_people = sorted(people, key=lambda person: int(person[2]))\n\n        result = []\n        for person in sorted_people:\n            result.append(f(person))\n\n        return result\n\n    return inner\n\n\n@person_lister\ndef name_format(person):\n    if person[3] == \"M\":\n        title = \"Mr. \"\n    else:\n        title = \"Ms. \"\n\n    return title + person[0] + \" \" + person[1]\n\n\nif __name__ == '__main__':\n    people = [input().split() for i in range(int(input()))]\n    print(*name_format(people), sep='\\n')\n<\/code><\/pre>\n\n\n\n
        \u4e5f\u53ef\u4ee5\u628a inner<\/code> \u5199\u5f97\u66f4\u77ed\u4e00\u4e9b\uff1a<\/p>\n\n\n\n
        def person_lister(f):\n    def inner(people):\n        sorted_people = sorted(people, key=lambda person: int(person[2]))\n        return [f(person) for person in sorted_people]\n\n    return inner\n<\/code><\/pre>\n\n\n\n
        \u5bf9\u4e8e\u521d\u5b66\u9636\u6bb5\uff0c\u524d\u4e00\u79cd\u5199\u6cd5\u66f4\u76f4\u89c2\u3002<\/p>\n\n\n\n
        \n\n\n\n
        6. \u6a21\u677f\u4ee3\u7801\u89e3\u91ca<\/h2>\n\n\n\n
        \u8fd9\u4e00\u884c\uff1a<\/p>\n\n\n\n
        people = [input().split() for i in range(int(input()))]\n<\/code><\/pre>\n\n\n\n
        \u53ef\u4ee5\u62c6\u5f00\u7406\u89e3\u3002<\/p>\n\n\n\n
        \u5047\u8bbe\u8f93\u5165\u662f\uff1a<\/p>\n\n\n\n
        3\nMike Thomson 20 M\nRobert Bustle 32 M\nAndria Bustle 30 F\n<\/code><\/pre>\n\n\n\n
        \u7b2c\u4e00\u884c\uff1a<\/p>\n\n\n\n
        int(input())\n<\/code><\/pre>\n\n\n\n
        \u8bfb\u5165\u4eba\u6570 3<\/code>\u3002<\/p>\n\n\n\n
        \u7136\u540e\u5faa\u73af 3 \u6b21\uff0c\u6bcf\u6b21\u8bfb\u4e00\u884c\uff1a<\/p>\n\n\n\n
        input().split()\n<\/code><\/pre>\n\n\n\n
        \u4f8b\u5982\uff1a<\/p>\n\n\n\n
        \"Mike Thomson 20 M\".split()\n<\/code><\/pre>\n\n\n\n
        \u4f1a\u5f97\u5230\uff1a<\/p>\n\n\n\n
        [\"Mike\", \"Thomson\", \"20\", \"M\"]\n<\/code><\/pre>\n\n\n\n
        \u6700\u7ec8 people<\/code> \u5c31\u662f\uff1a<\/p>\n\n\n\n
        [\n    [\"Mike\", \"Thomson\", \"20\", \"M\"],\n    [\"Robert\", \"Bustle\", \"32\", \"M\"],\n    [\"Andria\", \"Bustle\", \"30\", \"F\"]\n]\n<\/code><\/pre>\n\n\n\n
        \u6700\u540e\u8fd9\u4e00\u53e5\uff1a<\/p>\n\n\n\n
        print(*name_format(people), sep='\\n')\n<\/code><\/pre>\n\n\n\n
        \u610f\u601d\u662f\uff1a<\/p>\n\n\n\n
          \n
        1. \u8c03\u7528 name_format(people)<\/code>\uff1b<\/li>\n\n\n\n
        2. \u7531\u4e8e name_format<\/code> \u88ab\u88c5\u9970\u5668\u6539\u9020\u8fc7\uff0c\u6240\u4ee5\u5b9e\u9645\u8c03\u7528\u7684\u662f inner(people)<\/code>\uff1b<\/li>\n\n\n\n
        3. inner(people)<\/code> \u8fd4\u56de\u4e00\u4e2a\u683c\u5f0f\u5316\u540e\u7684\u540d\u5b57\u5217\u8868\uff1b<\/li>\n\n\n\n
        4. print(*\u5217\u8868, sep='\\n')<\/code> \u628a\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5355\u72ec\u6253\u5370\uff0c\u5e76\u4e14\u6bcf\u4e2a\u5143\u7d20\u4e4b\u95f4\u6362\u884c\u3002<\/li>\n<\/ol>\n\n\n\n
          \n\n\n\n
          7. \u8fd0\u884c\u6f14\u793a<\/h2>\n\n\n\n
          \u8f93\u5165\uff1a<\/p>\n\n\n\n
          3\nMike Thomson 20 M\nRobert Bustle 32 M\nAndria Bustle 30 F\n<\/code><\/pre>\n\n\n\n
          \u8bfb\u5165\u540e\uff1a<\/p>\n\n\n\n
          people = [\n    [\"Mike\", \"Thomson\", \"20\", \"M\"],\n    [\"Robert\", \"Bustle\", \"32\", \"M\"],\n    [\"Andria\", \"Bustle\", \"30\", \"F\"]\n]\n<\/code><\/pre>\n\n\n\n
          \u6309\u7167\u5e74\u9f84\u6392\u5e8f\uff1a<\/p>\n\n\n\n
          [\n    [\"Mike\", \"Thomson\", \"20\", \"M\"],\n    [\"Andria\", \"Bustle\", \"30\", \"F\"],\n    [\"Robert\", \"Bustle\", \"32\", \"M\"]\n]\n<\/code><\/pre>\n\n\n\n
          \u7136\u540e\u9010\u4e2a\u683c\u5f0f\u5316\u3002<\/p>\n\n\n\n
          \u7b2c\u4e00\u4e2a\u4eba\uff1a<\/p>\n\n\n\n
          [\"Mike\", \"Thomson\", \"20\", \"M\"]\n<\/code><\/pre>\n\n\n\n
          \u6027\u522b\u662f M<\/code>\uff0c\u8f93\u51fa\uff1a<\/p>\n\n\n\n
          Mr. Mike Thomson\n<\/code><\/pre>\n\n\n\n
          \u7b2c\u4e8c\u4e2a\u4eba\uff1a<\/p>\n\n\n\n
          [\"Andria\", \"Bustle\", \"30\", \"F\"]\n<\/code><\/pre>\n\n\n\n
          \u6027\u522b\u662f F<\/code>\uff0c\u8f93\u51fa\uff1a<\/p>\n\n\n\n
          Ms. Andria Bustle\n<\/code><\/pre>\n\n\n\n
          \u7b2c\u4e09\u4e2a\u4eba\uff1a<\/p>\n\n\n\n
          [\"Robert\", \"Bustle\", \"32\", \"M\"]\n<\/code><\/pre>\n\n\n\n
          \u6027\u522b\u662f M<\/code>\uff0c\u8f93\u51fa\uff1a<\/p>\n\n\n\n
          Mr. Robert Bustle\n<\/code><\/pre>\n\n\n\n
          \u6700\u7ec8\u8f93\u51fa\uff1a<\/p>\n\n\n\n
          Mr. Mike Thomson\nMs. Andria Bustle\nMr. Robert Bustle\n<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          8. \u8fd9\u9053\u9898\u6700\u5173\u952e\u7684\u5730\u65b9<\/h2>\n\n\n\n
          \u8fd9\u9053\u9898\u4e0d\u662f\u8ba9\u4f60\u5728 name_format<\/code> \u91cc\u9762\u6392\u5e8f\u3002<\/p>\n\n\n\n
          name_format(person)<\/code> \u53ea\u8d1f\u8d23\u5904\u7406\u4e00\u4e2a\u4eba\uff1a<\/p>\n\n\n\n
          [\"Mike\", \"Thomson\", \"20\", \"M\"]\n<\/code><\/pre>\n\n\n\n
          \u5b83\u4e0d\u8d1f\u8d23\u5904\u7406\u6240\u6709\u4eba\u3002<\/p>\n\n\n\n
          \u771f\u6b63\u5904\u7406\u6240\u6709\u4eba\u7684\u5730\u65b9\u662f\u88c5\u9970\u5668\u91cc\u9762\u7684 inner(people)<\/code>\uff1a<\/p>\n\n\n\n
          def inner(people):\n    sorted_people = sorted(people, key=lambda person: int(person[2]))\n    return [f(person) for person in sorted_people]\n<\/code><\/pre>\n\n\n\n
          \u4f60\u53ef\u4ee5\u8fd9\u6837\u8bb0\uff1a<\/p>\n\n\n\n
          \u539f\u51fd\u6570\uff1a\u5904\u7406\u4e00\u4e2a\u4eba\n\u88c5\u9970\u5668\uff1a\u5904\u7406\u4e00\u7fa4\u4eba\n<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          9. \u65b9\u6cd5\u603b\u7ed3<\/h2>\n\n\n\n
          \u4ee5\u540e\u770b\u5230\u8fd9\u7c7b\u88c5\u9970\u5668\u9898\uff0c\u53ef\u4ee5\u6309\u8fd9\u4e2a\u5957\u8def\u601d\u8003\uff1a<\/p>\n\n\n\n
          \u7b2c\u4e00\uff0c\u770b\u539f\u51fd\u6570\u8981\u5904\u7406\u4ec0\u4e48\u3002<\/p>\n\n\n\n
          \u8fd9\u91cc\u539f\u51fd\u6570\uff1a<\/p>\n\n\n\n
          name_format(person)\n<\/code><\/pre>\n\n\n\n
          \u5904\u7406\u7684\u662f\u201c\u4e00\u4e2a\u4eba\u201d\u3002<\/p>\n\n\n\n
          \u7b2c\u4e8c\uff0c\u770b\u88c5\u9970\u5668\u8981\u989d\u5916\u589e\u52a0\u4ec0\u4e48\u529f\u80fd\u3002<\/p>\n\n\n\n
          \u8fd9\u91cc\u88c5\u9970\u5668\uff1a<\/p>\n\n\n\n
          person_lister(f)\n<\/code><\/pre>\n\n\n\n
          \u8981\u589e\u52a0\u7684\u662f\u201c\u5bf9\u4e00\u7fa4\u4eba\u6392\u5e8f\uff0c\u7136\u540e\u9010\u4e2a\u683c\u5f0f\u5316\u201d\u3002<\/p>\n\n\n\n
          \u7b2c\u4e09\uff0c\u5728\u88c5\u9970\u5668\u5185\u90e8\u8c03\u7528\u539f\u51fd\u6570\u3002<\/p>\n\n\n\n
          \u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n
          f(person)\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u4e00\u6b65\u8868\u793a\uff1a\u6392\u5e8f\u5b8c\u6210\u540e\uff0c\u518d\u628a\u6bcf\u4e2a\u4eba\u4ea4\u7ed9\u539f\u51fd\u6570\u5904\u7406\u3002<\/p>\n\n\n\n
          \n\n\n\n
          10. \u540c\u7c7b\u578b\u7ec3\u4e60<\/h2>\n\n\n\n
          \u7ed9\u4f60\u82e5\u5e72\u5b66\u751f\u4fe1\u606f\uff1a<\/p>\n\n\n\n
          name score\n<\/code><\/pre>\n\n\n\n
          \u8981\u6c42\u6309\u7167\u5206\u6570\u4ece\u4f4e\u5230\u9ad8\u6392\u5e8f\uff0c\u7136\u540e\u8f93\u51fa\uff1a<\/p>\n\n\n\n
          Student: name\n<\/code><\/pre>\n\n\n\n
          \u4f8b\u5982\u8f93\u5165\uff1a<\/p>\n\n\n\n
          3\nTom 80\nJack 60\nMary 90\n<\/code><\/pre>\n\n\n\n
          \u8f93\u51fa\uff1a<\/p>\n\n\n\n
          Student: Jack\nStudent: Tom\nStudent: Mary\n<\/code><\/pre>\n\n\n\n
          \u63d0\u793a\uff1a<\/p>\n\n\n\n
          \u4f60\u53ef\u4ee5\u5199\u4e00\u4e2a\u539f\u51fd\u6570\u4e13\u95e8\u683c\u5f0f\u5316\u4e00\u4e2a\u5b66\u751f\uff1a<\/p>\n\n\n\n
          def student_format(student):\n    return \"Student: \" + student[0]\n<\/code><\/pre>\n\n\n\n
          \u7136\u540e\u5199\u4e00\u4e2a\u88c5\u9970\u5668\uff0c\u5728\u88c5\u9970\u5668\u91cc\u9762\u6839\u636e student[1]<\/code> \u6392\u5e8f\u3002<\/p>\n\n\n\n
          \u8865\u5145\u8bf4\u660e<\/h2>\n\n\n\n
          \u90a3\u6309\u7406\u6765\u8bf4\uff0c\u88c5\u9970\u5668\u51fd\u6570\u662f\u4e00\u4e2a\u8fd9\u4e48\u6837\u4e00\u4e2a\u7684\u6a21\u677f<\/p>\n\n\n\n
          def my_decorator(func):\n    def wrapper(*args, **kwargs):\n        # \u539f\u51fd\u6570\u6267\u884c\u524d\n        result = func(*args, **kwargs)\n        # \u539f\u51fd\u6570\u6267\u884c\u540e\n        return result\n\n    return wrapper<\/code><\/pre>\n\n\n\n
          \u90a3\u4e3a\u4ec0\u4e48\u6211\u5e76\u6ca1\u6709\u770b\u5230\u8fd9\u4e00\u6761 result = func(*args, **kwargs)\uff0c\u5c31\u662f\u8bf4\u660e\u786e\u7684result\uff0c\u6240\u4ee5\u8fd9\u4e2a\u88c5\u9970\u5668\u91cc\u9762\u8fd9\u4e2a\u5206\u5272\u5230\u5e95\u662f\u54ea\u4e00\u6761\uff1f<\/p>\n\n\n\n
          \u4f60\u7684\u7406\u89e3\u65b9\u5411\u662f\u5bf9\u7684\uff0c\u4f46\u6709\u4e00\u4e2a\u5173\u952e\u70b9\u8981\u4fee\u6b63\uff1a<\/p>\n\n\n\n
          \u4f60\u770b\u5230\u7684\u8fd9\u4e2a\u6a21\u677f\uff1a<\/p>\n\n\n\n
          def my_decorator(func):\n    def wrapper(*args, **kwargs):\n        # \u539f\u51fd\u6570\u6267\u884c\u524d\n        result = func(*args, **kwargs)\n        # \u539f\u51fd\u6570\u6267\u884c\u540e\n        return result\n\n    return wrapper\n<\/code><\/pre>\n\n\n\n
          \u5b83\u53ea\u662f\u6700\u5e38\u89c1\u7684\u4e00\u79cd\u88c5\u9970\u5668\u5199\u6cd5<\/strong>\uff0c\u4e0d\u662f\u6240\u6709\u88c5\u9970\u5668\u90fd\u5fc5\u987b\u957f\u8fd9\u6837\u3002<\/p>\n\n\n\n
          \u8fd9\u9053\u9898\u91cc\u7684\u88c5\u9970\u5668\u4e0d\u662f\u7b80\u5355\u5730\u201c\u5728\u539f\u51fd\u6570\u524d\u540e\u52a0\u70b9\u4e1c\u897f\u201d\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n
          \u539f\u51fd\u6570 name_format\uff1a\u53ea\u4f1a\u5904\u7406\u4e00\u4e2a\u4eba\n\u88c5\u9970\u5668 person_lister\uff1a\u8ba9\u5b83\u53d8\u6210\u80fd\u5904\u7406\u4e00\u7fa4\u4eba\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u8fd9\u9053\u9898\u7684\u6838\u5fc3\u53d8\u5316\u662f\uff1a\u88c5\u9970\u5668\u6539\u53d8\u4e86\u51fd\u6570\u7684\u4f7f\u7528\u65b9\u5f0f<\/strong>\u3002<\/p>\n\n\n\n
          \n\n\n\n
          1. \u666e\u901a\u88c5\u9970\u5668\u6a21\u677f\u91cc\uff0c\u54ea\u4e00\u53e5\u662f\u8c03\u7528\u539f\u51fd\u6570\uff1f<\/h2>\n\n\n\n
          \u5728\u8fd9\u4e2a\u6a21\u677f\u91cc\uff1a<\/p>\n\n\n\n
          result = func(*args, **kwargs)\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u4e00\u53e5\u5c31\u662f\u5728\u8c03\u7528\u539f\u51fd\u6570\u3002<\/p>\n\n\n\n
          \u5176\u4e2d\uff1a<\/p>\n\n\n\n
          func\n<\/code><\/pre>\n\n\n\n
          \u5c31\u662f\u88ab\u88c5\u9970\u7684\u539f\u51fd\u6570\u3002<\/p>\n\n\n\n
          \u6bd4\u5982\uff1a<\/p>\n\n\n\n
          @my_decorator\ndef hello():\n    print(\"hello\")\n<\/code><\/pre>\n\n\n\n
          \u7b49\u4ef7\u4e8e\uff1a<\/p>\n\n\n\n
          hello = my_decorator(hello)\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5 func<\/code> \u6307\u5411\u539f\u6765\u7684 hello<\/code>\u3002<\/p>\n\n\n\n
          \n\n\n\n
          2. \u8fd9\u9053\u9898\u91cc\u9762\uff0c\u54ea\u4e00\u53e5\u5bf9\u5e94 func(*args, **kwargs)<\/code>\uff1f<\/h2>\n\n\n\n
          \u8fd9\u9053\u9898\u5e38\u89c1\u4ee3\u7801\u662f\uff1a<\/p>\n\n\n\n
          def person_lister(f):\n    def inner(people):\n        sorted_people = sorted(people, key=lambda person: int(person[2]))\n        return [f(person) for person in sorted_people]\n\n    return inner\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u91cc\u7684\uff1a<\/p>\n\n\n\n
          f(person)\n<\/code><\/pre>\n\n\n\n
          \u5c31\u5bf9\u5e94\u666e\u901a\u6a21\u677f\u91cc\u7684\uff1a<\/p>\n\n\n\n
          func(*args, **kwargs)\n<\/code><\/pre>\n\n\n\n
          \u4e5f\u5c31\u662f\u8bf4\uff1a<\/p>\n\n\n\n
          f(person)\n<\/code><\/pre>\n\n\n\n
          \u5c31\u662f\u5728\u8c03\u7528\u539f\u6765\u7684 name_format(person)<\/code>\u3002<\/p>\n\n\n\n
          \u56e0\u4e3a\u5916\u9762\u6709\uff1a<\/p>\n\n\n\n
          @person_lister\ndef name_format(person):\n    return (\"Mr. \" if person[3] == \"M\" else \"Ms. \") + person[0] + \" \" + person[1]\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u8fd9\u91cc\u7684 f<\/code> \u5b9e\u9645\u4e0a\u5c31\u662f\u539f\u6765\u7684 name_format<\/code> \u51fd\u6570\u3002<\/p>\n\n\n\n
          \u4f60\u53ef\u4ee5\u628a\u5b83\u7406\u89e3\u6210\uff1a<\/p>\n\n\n\n
          return [name_format(person) for person in sorted_people]\n<\/code><\/pre>\n\n\n\n
          \u53ea\u662f\u56e0\u4e3a\u7528\u4e86\u88c5\u9970\u5668\uff0c\u6240\u4ee5\u5728 person_lister(f)<\/code> \u91cc\u9762\u8981\u5199\u6210\uff1a<\/p>\n\n\n\n
          f(person)\n<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          3. \u4e3a\u4ec0\u4e48\u6ca1\u6709\u770b\u5230\u660e\u786e\u7684 result = ...<\/code>\uff1f<\/h2>\n\n\n\n
          \u56e0\u4e3a result<\/code> \u8fd9\u4e2a\u53d8\u91cf\u4e0d\u662f\u5fc5\u987b\u7684\u3002<\/p>\n\n\n\n
          \u8fd9\u4e24\u79cd\u5199\u6cd5\u672c\u8d28\u4e00\u6837\uff1a<\/p>\n\n\n\n
          result = func(x)\nreturn result\n<\/code><\/pre>\n\n\n\n
          \u548c\uff1a<\/p>\n\n\n\n
          return func(x)\n<\/code><\/pre>\n\n\n\n
          \u662f\u7b49\u4ef7\u7684\u3002<\/p>\n\n\n\n
          \u6bd4\u5982\u666e\u901a\u88c5\u9970\u5668\u53ef\u4ee5\u5199\u6210\uff1a<\/p>\n\n\n\n
          def my_decorator(func):\n    def wrapper(*args, **kwargs):\n        return func(*args, **kwargs)\n\n    return wrapper\n<\/code><\/pre>\n\n\n\n
          \u4e0d\u4e00\u5b9a\u975e\u8981\u5199\uff1a<\/p>\n\n\n\n
          result = func(*args, **kwargs)\nreturn result\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u8fd9\u9053\u9898\u91cc\u9762\uff1a<\/p>\n\n\n\n
          return [f(person) for person in sorted_people]\n<\/code><\/pre>\n\n\n\n
          \u5176\u5b9e\u76f8\u5f53\u4e8e\uff1a<\/p>\n\n\n\n
          result = []\n\nfor person in sorted_people:\n    result.append(f(person))\n\nreturn result\n<\/code><\/pre>\n\n\n\n
          \u518d\u5c55\u5f00\u4e00\u70b9\uff0c\u5c31\u662f\uff1a<\/p>\n\n\n\n
          result = []\n\nfor person in sorted_people:\n    formatted_name = f(person)\n    result.append(formatted_name)\n\nreturn result\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u91cc\u7684\uff1a<\/p>\n\n\n\n
          formatted_name = f(person)\n<\/code><\/pre>\n\n\n\n
          \u624d\u662f\u6700\u63a5\u8fd1\uff1a<\/p>\n\n\n\n
          result = func(*args, **kwargs)\n<\/code><\/pre>\n\n\n\n
          \u7684\u5730\u65b9\u3002<\/p>\n\n\n\n
          \n\n\n\n
          4. \u4e3a\u4ec0\u4e48\u8fd9\u91cc\u4e0d\u80fd\u76f4\u63a5\u5199 result = f(*args, **kwargs)<\/code>\uff1f<\/h2>\n\n\n\n
          \u8fd9\u662f\u8fd9\u9053\u9898\u6700\u5bb9\u6613\u5361\u4f4f\u7684\u5730\u65b9\u3002<\/p>\n\n\n\n
          \u539f\u51fd\u6570\u662f\uff1a<\/p>\n\n\n\n
          def name_format(person):\n    ...\n<\/code><\/pre>\n\n\n\n
          \u5b83\u53ea\u4f1a\u5904\u7406\u4e00\u4e2a\u4eba\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n
          [\"Mike\", \"Thomson\", \"20\", \"M\"]\n<\/code><\/pre>\n\n\n\n
          \u4f46\u662f\u88c5\u9970\u4e4b\u540e\uff0c\u6211\u4eec\u5b9e\u9645\u8c03\u7528\u7684\u662f\uff1a<\/p>\n\n\n\n
          name_format(people)\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u91cc\u4f20\u8fdb\u53bb\u7684\u662f\u4e00\u7fa4\u4eba\uff1a<\/p>\n\n\n\n
          [\n    [\"Mike\", \"Thomson\", \"20\", \"M\"],\n    [\"Robert\", \"Bustle\", \"32\", \"M\"],\n    [\"Andria\", \"Bustle\", \"30\", \"F\"]\n]\n<\/code><\/pre>\n\n\n\n
          \u5982\u679c\u76f4\u63a5\u5199\uff1a<\/p>\n\n\n\n
          result = f(people)\n<\/code><\/pre>\n\n\n\n
          \u90a3\u5c31\u7b49\u4e8e\u628a\u201c\u6240\u6709\u4eba\u5217\u8868\u201d\u76f4\u63a5\u4e22\u7ed9\u539f\u51fd\u6570\u3002<\/p>\n\n\n\n
          \u53ef\u662f\u539f\u51fd\u6570 name_format(person)<\/code> \u671f\u5f85\u7684\u662f\uff1a<\/p>\n\n\n\n
          [\"Mike\", \"Thomson\", \"20\", \"M\"]\n<\/code><\/pre>\n\n\n\n
          \u4e0d\u662f\uff1a<\/p>\n\n\n\n
          [\n    [\"Mike\", \"Thomson\", \"20\", \"M\"],\n    [\"Robert\", \"Bustle\", \"32\", \"M\"],\n    [\"Andria\", \"Bustle\", \"30\", \"F\"]\n]\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u8fd9\u9053\u9898\u5fc5\u987b\u5148\u904d\u5386\uff1a<\/p>\n\n\n\n
          for person in sorted_people:\n    f(person)\n<\/code><\/pre>\n\n\n\n
          \u610f\u601d\u662f\uff1a\u628a\u4e00\u7fa4\u4eba\u62c6\u6210\u4e00\u4e2a\u4e00\u4e2a\u4eba\uff0c\u518d\u4ea4\u7ed9\u539f\u51fd\u6570\u5904\u7406\u3002<\/p>\n\n\n\n
          \n\n\n\n
          5. \u8fd9\u9053\u9898\u88c5\u9970\u5668\u91cc\u7684\u201c\u5206\u5272\u7ebf\u201d\u5230\u5e95\u5728\u54ea\u91cc\uff1f<\/h2>\n\n\n\n
          \u4f60\u53ef\u4ee5\u8fd9\u6837\u770b\uff1a<\/p>\n\n\n\n
          def person_lister(f):                 # f \u63a5\u6536\u539f\u6765\u7684 name_format \u51fd\u6570\n    def inner(people):                # inner \u662f\u65b0\u7684 name_format \u51fd\u6570\n\n        sorted_people = sorted(\n            people,\n            key=lambda person: int(person[2])\n        )                             # \u539f\u51fd\u6570\u6267\u884c\u524d\uff1a\u5148\u6392\u5e8f\n\n        return [f(person) for person in sorted_people]\n                                      # \u8c03\u7528\u539f\u51fd\u6570\uff1af(person)\n                                      # \u539f\u51fd\u6570\u6267\u884c\u540e\uff1a\u628a\u7ed3\u679c\u7ec4\u6210\u5217\u8868\u8fd4\u56de\n\n    return inner                      # \u7528 inner \u66ff\u6362\u539f\u6765\u7684 name_format\n<\/code><\/pre>\n\n\n\n
          \u771f\u6b63\u7684\u5206\u754c\u70b9\u662f\uff1a<\/p>\n\n\n\n
          f(person)\n<\/code><\/pre>\n\n\n\n
          \u5b83\u5c31\u662f\u201c\u8c03\u7528\u539f\u51fd\u6570\u201d\u7684\u5730\u65b9\u3002<\/p>\n\n\n\n
          \u66f4\u6e05\u695a\u5730\u5199\u6210\u666e\u901a\u5faa\u73af\u5c31\u662f\uff1a<\/p>\n\n\n\n
          def person_lister(f):\n    def inner(people):\n        sorted_people = sorted(people, key=lambda person: int(person[2]))\n\n        result = []\n\n        for person in sorted_people:\n            formatted_name = f(person)\n            result.append(formatted_name)\n\n        return result\n\n    return inner\n<\/code><\/pre>\n\n\n\n
          \u5728\u8fd9\u6bb5\u4ee3\u7801\u91cc\uff0c\u7ed3\u6784\u5c31\u975e\u5e38\u660e\u663e\u4e86\uff1a<\/p>\n\n\n\n
          sorted_people = ...\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u662f\u539f\u51fd\u6570\u6267\u884c\u524d\u65b0\u589e\u7684\u529f\u80fd\uff1a\u6392\u5e8f\u3002<\/p>\n\n\n\n
          formatted_name = f(person)\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u662f\u8c03\u7528\u539f\u51fd\u6570\uff1a\u683c\u5f0f\u5316\u4e00\u4e2a\u4eba\u7684\u540d\u5b57\u3002<\/p>\n\n\n\n
          result.append(formatted_name)\nreturn result\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u662f\u539f\u51fd\u6570\u6267\u884c\u540e\u7684\u5904\u7406\uff1a\u6536\u96c6\u6240\u6709\u683c\u5f0f\u5316\u7ed3\u679c\u5e76\u8fd4\u56de\u3002<\/p>\n\n\n\n
          \n\n\n\n
          6. \u7528\u4e00\u53e5\u8bdd\u603b\u7ed3<\/h2>\n\n\n\n
          \u666e\u901a\u88c5\u9970\u5668\u6a21\u677f\u91cc\uff1a<\/p>\n\n\n\n
          result = func(*args, **kwargs)\n<\/code><\/pre>\n\n\n\n
          \u8868\u793a\u201c\u8c03\u7528\u539f\u51fd\u6570\u201d\u3002<\/p>\n\n\n\n
          \u8fd9\u9053\u9898\u91cc\u5bf9\u5e94\u7684\u662f\uff1a<\/p>\n\n\n\n
          f(person)\n<\/code><\/pre>\n\n\n\n
          \u53ea\u662f\u8fd9\u9053\u9898\u4e0d\u662f\u8c03\u7528\u4e00\u6b21\u539f\u51fd\u6570\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n
          \u5148\u628a\u6240\u6709\u4eba\u6309\u5e74\u9f84\u6392\u5e8f\n\u518d\u628a\u6bcf\u4e2a\u4eba\u5206\u522b\u4ea4\u7ed9\u539f\u51fd\u6570\u683c\u5f0f\u5316\n\u6700\u540e\u628a\u6240\u6709\u7ed3\u679c\u7ec4\u6210\u5217\u8868\u8fd4\u56de\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u5b83\u4e0d\u5199\u6210\uff1a<\/p>\n\n\n\n
          result = func(*args, **kwargs)\n<\/code><\/pre>\n\n\n\n
          \u800c\u662f\u5199\u6210\uff1a<\/p>\n\n\n\n
          return [f(person) for person in sorted_people]\n<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          7. \u5c0f\u7ec3\u4e60<\/h2>\n\n\n\n
          \u628a\u4e0b\u9762\u8fd9\u6bb5\u5217\u8868\u63a8\u5bfc\u5f0f\u6539\u5199\u6210\u666e\u901a for<\/code> \u5faa\u73af\uff1a<\/p>\n\n\n\n
          return [f(person) for person in sorted_people]\n<\/code><\/pre>\n\n\n\n
          \u63d0\u793a\uff1a\u4f60\u9700\u8981\u5148\u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868 result = []<\/code>\uff0c\u7136\u540e\u904d\u5386 sorted_people<\/code>\uff0c\u6bcf\u6b21\u8c03\u7528 f(person)<\/code>\uff0c\u518d\u628a\u7ed3\u679c\u52a0\u5165 result<\/code>\u3002<\/p>\n\n\n\n
          \u672c\u8d28\u4e0a\u5c31\u662f\u4e00\u4e2a\u8c03\u7528\u51fd\u6570,\u88c5\u9970\u5668\u51fd\u6570\u91cc\u9762\u6389\u7528\u4e86\u4e00\u4e2a\u88ab\u88c5\u9970\u7684\u51fd\u6570\uff0c\u90a3\u4e3a\u4ec0\u4e48\u4e0d\u7528\u7ec4\u5408\u6216\u8005\u7ee7\u627f\u5462\uff1f<\/h2>\n\n\n\n
          \u5bf9\uff0c\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff0c\u4f46\u8981\u518d\u7cbe\u786e\u4e00\u70b9\uff1a<\/p>\n\n\n\n
          \u88c5\u9970\u5668\u7684\u672c\u8d28\u4e0d\u662f\u201c\u8c03\u7528\u51fd\u6570\u201d\uff0c\u800c\u662f\u201c\u63a5\u6536\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd4\u56de\u4e00\u4e2a\u65b0\u51fd\u6570\u201d\u3002<\/strong><\/p>\n\n\n\n
          \u8fd9\u4e2a\u201c\u65b0\u51fd\u6570\u201d\u91cc\u9762\u901a\u5e38\u4f1a\u8c03\u7528\u539f\u6765\u7684\u88ab\u88c5\u9970\u51fd\u6570\uff0c\u4f46\u4e0d\u662f\u5fc5\u987b\u8c03\u7528\uff0c\u4e5f\u53ef\u4ee5\u8c03\u7528\u591a\u6b21\uff0c\u751a\u81f3\u53ef\u4ee5\u5b8c\u5168\u4e0d\u8c03\u7528\u3002<\/p>\n\n\n\n
          \n\n\n\n
          1. \u66f4\u51c6\u786e\u7684\u7406\u89e3<\/h2>\n\n\n\n
          \u666e\u901a\u51fd\u6570\u8c03\u7528\u662f\u8fd9\u6837\uff1a<\/p>\n\n\n\n
          result = func()\n<\/code><\/pre>\n\n\n\n
          \u800c\u88c5\u9970\u5668\u662f\u8fd9\u6837\uff1a<\/p>\n\n\n\n
          def my_decorator(func):\n    def wrapper():\n        result = func()\n        return result\n\n    return wrapper\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u91cc\u6709\u4e24\u5c42\u5173\u7cfb\uff1a<\/p>\n\n\n\n
          \u7b2c\u4e00\u5c42\uff0c\u88c5\u9970\u5668\u51fd\u6570\u63a5\u6536\u539f\u51fd\u6570\uff1a<\/p>\n\n\n\n
          def my_decorator(func):\n<\/code><\/pre>\n\n\n\n
          \u7b2c\u4e8c\u5c42\uff0c\u5185\u90e8\u65b0\u51fd\u6570\u8c03\u7528\u539f\u51fd\u6570\uff1a<\/p>\n\n\n\n
          result = func()\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u88c5\u9970\u5668\u5b8c\u6574\u7406\u89e3\u5e94\u8be5\u662f\uff1a<\/p>\n\n\n\n
          \u88c5\u9970\u5668\u51fd\u6570\u63a5\u6536\u4e00\u4e2a\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\n\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\uff0c\n\u8fd9\u4e2a\u65b0\u7684\u51fd\u6570\u53ef\u4ee5\u5728\u5185\u90e8\u8c03\u7528\u539f\u51fd\u6570\u3002\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u6bd4\u201c\u88c5\u9970\u5668\u91cc\u9762\u8c03\u7528\u4e86\u88ab\u88c5\u9970\u51fd\u6570\u201d\u66f4\u51c6\u786e\u3002<\/p>\n\n\n\n
          \n\n\n\n
          2. @decorator<\/code> \u5230\u5e95\u53d1\u751f\u4e86\u4ec0\u4e48\uff1f<\/h2>\n\n\n\n
          \u6bd4\u5982\uff1a<\/p>\n\n\n\n
          @my_decorator\ndef hello():\n    print(\"hello\")\n<\/code><\/pre>\n\n\n\n
          \u5b83\u7b49\u4ef7\u4e8e\uff1a<\/p>\n\n\n\n
          def hello():\n    print(\"hello\")\n\nhello = my_decorator(hello)\n<\/code><\/pre>\n\n\n\n
          \u6ce8\u610f\u8fd9\u91cc\u975e\u5e38\u5173\u952e\uff1a<\/p>\n\n\n\n
          hello = my_decorator(hello)\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u8bf4\u660e\u539f\u6765\u7684 hello<\/code> \u88ab\u4f20\u8fdb\u4e86 my_decorator<\/code>\uff0c\u7136\u540e my_decorator<\/code> \u8fd4\u56de\u4e86\u4e00\u4e2a\u65b0\u7684\u51fd\u6570\uff0c\u91cd\u65b0\u8d4b\u503c\u7ed9 hello<\/code>\u3002<\/p>\n\n\n\n
          \u6240\u4ee5\u4e4b\u540e\u4f60\u518d\u8c03\u7528\uff1a<\/p>\n\n\n\n
          hello()\n<\/code><\/pre>\n\n\n\n
          \u4f60\u8c03\u7528\u7684\u5df2\u7ecf\u4e0d\u662f\u539f\u6765\u7684 hello<\/code>\uff0c\u800c\u662f\u88c5\u9970\u5668\u8fd4\u56de\u7684 wrapper<\/code>\u3002<\/p>\n\n\n\n
          \n\n\n\n
          3. \u5957\u56de\u8fd9\u9053\u9898<\/h2>\n\n\n\n
          \u8fd9\u9053\u9898\u91cc\u9762\uff1a<\/p>\n\n\n\n
          def person_lister(f):\n    def inner(people):\n        sorted_people = sorted(people, key=lambda person: int(person[2]))\n        return [f(person) for person in sorted_people]\n\n    return inner\n<\/code><\/pre>\n\n\n\n
          \u7136\u540e\uff1a<\/p>\n\n\n\n
          @person_lister\ndef name_format(person):\n    ...\n<\/code><\/pre>\n\n\n\n
          \u7b49\u4ef7\u4e8e\uff1a<\/p>\n\n\n\n
          name_format = person_lister(name_format)\n<\/code><\/pre>\n\n\n\n
          \u4e5f\u5c31\u662f\u8bf4\uff0c\u88c5\u9970\u4e4b\u540e\uff1a<\/p>\n\n\n\n
          name_format\n<\/code><\/pre>\n\n\n\n
          \u5df2\u7ecf\u4e0d\u518d\u76f4\u63a5\u6307\u5411\u539f\u6765\u7684\u5355\u4eba\u683c\u5f0f\u5316\u51fd\u6570\uff0c\u800c\u662f\u6307\u5411\u4e86 inner<\/code>\u3002<\/p>\n\n\n\n
          \u6240\u4ee5\u5f53\u4f60\u5199\uff1a<\/p>\n\n\n\n
          name_format(people)\n<\/code><\/pre>\n\n\n\n
          \u5b9e\u9645\u6267\u884c\u7684\u662f\uff1a<\/p>\n\n\n\n
          inner(people)\n<\/code><\/pre>\n\n\n\n
          \u800c inner(people)<\/code> \u5185\u90e8\u53c8\u4f1a\u8c03\u7528\uff1a<\/p>\n\n\n\n
          f(person)\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u91cc\u7684 f<\/code> \u624d\u662f\u539f\u6765\u7684 name_format(person)<\/code>\u3002<\/p>\n\n\n\n
          \u8fd9\u9053\u9898\u7684\u5173\u7cfb\u53ef\u4ee5\u5199\u6210\uff1a<\/p>\n\n\n\n
          \u539f\u6765\u7684 name_format(person)\n\u529f\u80fd\uff1a\u683c\u5f0f\u5316\u4e00\u4e2a\u4eba\n\n\u88c5\u9970\u5668\u8fd4\u56de\u7684 inner(people)\n\u529f\u80fd\uff1a\u63a5\u6536\u4e00\u7fa4\u4eba\uff0c\u6392\u5e8f\uff0c\u7136\u540e\u4e00\u4e2a\u4e00\u4e2a\u4ea4\u7ed9\u539f\u6765\u7684 name_format\n<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          4. \u90a3\u4e3a\u4ec0\u4e48\u4e0d\u7528\u7ec4\u5408\uff1f<\/h2>\n\n\n\n
          \u5b9e\u9645\u4e0a\uff0c\u88c5\u9970\u5668\u672c\u8eab\u5c31\u662f\u4e00\u79cd\u51fd\u6570\u5c42\u9762\u7684\u7ec4\u5408<\/strong>\u3002<\/p>\n\n\n\n
          \u4e0d\u7528\u88c5\u9970\u5668\u7684\u8bdd\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n\n\n\n
          def name_format(person):\n    if person[3] == \"M\":\n        title = \"Mr. \"\n    else:\n        title = \"Ms. \"\n\n    return title + person[0] + \" \" + person[1]\n\n\ndef sorted_name_format(people):\n    sorted_people = sorted(people, key=lambda person: int(person[2]))\n\n    result = []\n    for person in sorted_people:\n        result.append(name_format(person))\n\n    return result\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u5c31\u662f\u666e\u901a\u7ec4\u5408\uff1a<\/p>\n\n\n\n
          sorted_name_format \u8c03\u7528\u4e86 name_format\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u5f53\u7136\u53ef\u4ee5\uff0c\u800c\u4e14\u5bf9\u521d\u5b66\u8005\u6765\u8bf4\u66f4\u76f4\u89c2\u3002<\/p>\n\n\n\n
          \u88c5\u9970\u5668\u53ea\u662f\u628a\u8fd9\u79cd\u7ec4\u5408\u5199\u6210\u4e86\uff1a<\/p>\n\n\n\n
          @person_lister\ndef name_format(person):\n    ...\n<\/code><\/pre>\n\n\n\n
          \u5b83\u7684\u597d\u5904\u662f\uff1a\u4e0d\u6539\u539f\u51fd\u6570\u672c\u8eab\uff0c\u53ea\u5728\u5916\u9762\u5305\u4e00\u5c42\u529f\u80fd\u3002<\/strong><\/p>\n\n\n\n
          \n\n\n\n
          5. \u88c5\u9970\u5668\u548c\u666e\u901a\u7ec4\u5408\u7684\u533a\u522b<\/h2>\n\n\n\n
          \u666e\u901a\u7ec4\u5408\u901a\u5e38\u662f\u663e\u5f0f\u8c03\u7528\u53e6\u4e00\u4e2a\u51fd\u6570\uff1a<\/p>\n\n\n\n
          def sorted_name_format(people):\n    return [name_format(person) for person in people]\n<\/code><\/pre>\n\n\n\n
          \u4f60\u80fd\u76f4\u63a5\u770b\u5230\uff1a<\/p>\n\n\n\n
          name_format(person)\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u666e\u901a\u7ec4\u5408\u66f4\u76f4\u89c2\u3002<\/p>\n\n\n\n
          \u88c5\u9970\u5668\u662f\u628a\u201c\u5305\u88c5\u903b\u8f91\u201d\u63d0\u524d\u7ed1\u5b9a\u5230\u51fd\u6570\u540d\u4e0a\uff1a<\/p>\n\n\n\n
          @person_lister\ndef name_format(person):\n    ...\n<\/code><\/pre>\n\n\n\n
          \u4e4b\u540e\u4f60\u8c03\u7528\uff1a<\/p>\n\n\n\n
          name_format(people)\n<\/code><\/pre>\n\n\n\n
          \u8868\u9762\u4e0a\u50cf\u662f\u5728\u8c03\u7528 name_format<\/code>\uff0c\u5b9e\u9645\u4e0a\u5df2\u7ecf\u8c03\u7528\u4e86\u88c5\u9970\u5668\u8fd4\u56de\u7684\u65b0\u51fd\u6570\u3002<\/p>\n\n\n\n
          \u6240\u4ee5\u88c5\u9970\u5668\u7684\u4f18\u70b9\u662f\u7b80\u6d01\uff0c\u7f3a\u70b9\u662f\u5bf9\u521d\u5b66\u8005\u6765\u8bf4\u4e0d\u591f\u76f4\u89c2\u3002<\/p>\n\n\n\n
          \u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u4f60\u4f1a\u89c9\u5f97\u7591\u60d1\uff1a\u660e\u660e\u770b\u8d77\u6765\u5728\u8c03\u7528 name_format<\/code>\uff0c\u4f46\u5b9e\u9645\u8dd1\u7684\u662f inner<\/code>\u3002<\/p>\n\n\n\n
          \n\n\n\n
          6. \u90a3\u4e3a\u4ec0\u4e48\u4e0d\u7528\u7ee7\u627f\uff1f<\/h2>\n\n\n\n
          \u56e0\u4e3a\u7ee7\u627f\u4e3b\u8981\u7528\u4e8e\u201c\u7c7b\u548c\u7c7b\u4e4b\u95f4\u201d\u7684\u5173\u7cfb\uff0c\u800c\u8fd9\u9053\u9898\u5904\u7406\u7684\u662f\u201c\u51fd\u6570\u548c\u51fd\u6570\u4e4b\u95f4\u201d\u7684\u5305\u88c5\u5173\u7cfb\u3002<\/p>\n\n\n\n
          \u7ee7\u627f\u9002\u5408\u8fd9\u79cd\u573a\u666f\uff1a<\/p>\n\n\n\n
          class Animal:\n    def speak(self):\n        pass\n\n\nclass Dog(Animal):\n    def speak(self):\n        print(\"wang\")\n<\/code><\/pre>\n\n\n\n
          \u5b83\u8868\u8fbe\u7684\u662f\uff1a<\/p>\n\n\n\n
          Dog \u662f\u4e00\u79cd Animal\n<\/code><\/pre>\n\n\n\n
          \u4e5f\u5c31\u662f\u6240\u8c13\u7684 \u201cis-a\u201d \u5173\u7cfb\u3002<\/p>\n\n\n\n
          \u4f46\u662f\u8fd9\u9053\u9898\u4e0d\u662f\uff1a<\/p>\n\n\n\n
          name_format \u662f\u4e00\u79cd person_lister\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u4e2a\u8bf4\u6cd5\u4e0d\u6210\u7acb\u3002<\/p>\n\n\n\n
          \u8fd9\u9053\u9898\u66f4\u50cf\u662f\uff1a<\/p>\n\n\n\n
          \u7ed9 name_format \u5916\u9762\u5957\u4e00\u5c42\u6392\u5e8f\u529f\u80fd\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u7ee7\u627f\u4e0d\u9002\u5408\u3002<\/p>\n\n\n\n
          \n\n\n\n
          7. \u4ec0\u4e48\u65f6\u5019\u9002\u5408\u7528\u88c5\u9970\u5668\uff1f<\/h2>\n\n\n\n
          \u88c5\u9970\u5668\u9002\u5408\u7ed9\u51fd\u6570\u7edf\u4e00\u52a0\u4e00\u5c42\u201c\u989d\u5916\u529f\u80fd\u201d\uff0c\u5c24\u5176\u662f\u8fd9\u4e9b\u529f\u80fd\u4e0d\u5c5e\u4e8e\u51fd\u6570\u672c\u8eab\u7684\u6838\u5fc3\u4e1a\u52a1\u3002<\/p>\n\n\n\n
          \u6bd4\u5982\uff1a<\/p>\n\n\n\n
          \u7edf\u8ba1\u8fd0\u884c\u65f6\u95f4\n\u6253\u5370\u65e5\u5fd7\n\u6743\u9650\u68c0\u67e5\n\u7f13\u5b58\u7ed3\u679c\n\u53c2\u6570\u68c0\u67e5\n\u5f02\u5e38\u5904\u7406\n\u91cd\u8bd5\u673a\u5236\n\u683c\u5f0f\u8f6c\u6362\n<\/code><\/pre>\n\n\n\n
          \u4e3e\u4e2a\u7b80\u5355\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
          def log_decorator(func):\n    def wrapper():\n        print(\"\u51fd\u6570\u5f00\u59cb\u6267\u884c\")\n        result = func()\n        print(\"\u51fd\u6570\u6267\u884c\u7ed3\u675f\")\n        return result\n\n    return wrapper\n\n\n@log_decorator\ndef say_hello():\n    print(\"hello\")\n\n\nsay_hello()\n<\/code><\/pre>\n\n\n\n
          \u6267\u884c\u7ed3\u679c\uff1a<\/p>\n\n\n\n
          \u51fd\u6570\u5f00\u59cb\u6267\u884c\nhello\n\u51fd\u6570\u6267\u884c\u7ed3\u675f\n<\/code><\/pre>\n\n\n\n
          \u8fd9\u91cc say_hello<\/code> \u7684\u6838\u5fc3\u529f\u80fd\u53ea\u662f\u6253\u5370 hello<\/code>\uff0c\u800c\u201c\u51fd\u6570\u5f00\u59cb\u6267\u884c\u201d\u201c\u51fd\u6570\u6267\u884c\u7ed3\u675f\u201d\u5c5e\u4e8e\u989d\u5916\u529f\u80fd\uff0c\u6240\u4ee5\u9002\u5408\u7528\u88c5\u9970\u5668\u3002<\/p>\n\n\n\n
          \n\n\n\n
          8. \u4ec0\u4e48\u65f6\u5019\u4e0d\u9002\u5408\u7528\u88c5\u9970\u5668\uff1f<\/h2>\n\n\n\n
          \u5982\u679c\u903b\u8f91\u672c\u8eab\u5f88\u91cd\u8981\uff0c\u6216\u8005\u88c5\u9970\u5668\u4f1a\u8ba9\u51fd\u6570\u7684\u8f93\u5165\u8f93\u51fa\u53d8\u5f97\u4e0d\u660e\u663e\uff0c\u5c31\u4e0d\u4e00\u5b9a\u9002\u5408\u7528\u88c5\u9970\u5668\u3002<\/p>\n\n\n\n
          \u6bd4\u5982\u8fd9\u9053\u9898\u4ece\u5de5\u7a0b\u89d2\u5ea6\u770b\uff0c\u5176\u5b9e\u666e\u901a\u5199\u6cd5\u66f4\u6e05\u695a\uff1a<\/p>\n\n\n\n
          def name_format(person):\n    ...\n\n\ndef sorted_name_format(people):\n    ...\n<\/code><\/pre>\n\n\n\n
          \u4f46\u662f\u9898\u76ee\u8981\u6c42\u7528\u88c5\u9970\u5668\uff0c\u662f\u4e3a\u4e86\u8bad\u7ec3\u4f60\u7406\u89e3\uff1a<\/p>\n\n\n\n
          \u51fd\u6570\u53ef\u4ee5\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\n\u51fd\u6570\u53ef\u4ee5\u4f5c\u4e3a\u8fd4\u56de\u503c\u8fd4\u56de\n\u88c5\u9970\u5668\u53ef\u4ee5\u6539\u53d8\u51fd\u6570\u7684\u884c\u4e3a\n<\/code><\/pre>\n\n\n\n
          \u6240\u4ee5\u8fd9\u9898\u6709\u4e00\u5b9a\u201c\u6559\u5b66\u9898\u201d\u7684\u5473\u9053\uff0c\u4e0d\u4e00\u5b9a\u4ee3\u8868\u771f\u5b9e\u9879\u76ee\u91cc\u975e\u8981\u8fd9\u4e48\u5199\u3002<\/p>\n\n\n\n
          \n\n\n\n
          9. \u6700\u91cd\u8981\u7684\u4e00\u53e5\u8bdd<\/h2>\n\n\n\n
          \u4f60\u53ef\u4ee5\u8fd9\u6837\u603b\u7ed3\uff1a<\/p>\n\n\n\n
          \u88c5\u9970\u5668 = \u7528\u4e00\u4e2a\u51fd\u6570\u5305\u88c5\u53e6\u4e00\u4e2a\u51fd\u6570\u3002\n<\/code><\/pre>\n\n\n\n
          \u66f4\u5b8c\u6574\u5730\u8bf4\uff1a<\/p>\n\n\n\n
          \u88c5\u9970\u5668\u51fd\u6570\u63a5\u6536\u539f\u51fd\u6570\uff0c\u8fd4\u56de\u4e00\u4e2a\u65b0\u51fd\u6570\uff1b\n\u65b0\u51fd\u6570\u901a\u5e38\u4f1a\u5728\u5185\u90e8\u8c03\u7528\u539f\u51fd\u6570\uff0c\u5e76\u5728\u8c03\u7528\u524d\u540e\u589e\u52a0\u989d\u5916\u903b\u8f91\u3002\n<\/code><\/pre>\n\n\n\n
          \u5728\u8fd9\u9053\u9898\u91cc\uff1a<\/p>\n\n\n\n
          \u539f\u51fd\u6570 name_format\uff1a\u8d1f\u8d23\u683c\u5f0f\u5316\u4e00\u4e2a\u4eba\n\u88c5\u9970\u5668 person_lister\uff1a\u8d1f\u8d23\u63a5\u6536\u4e00\u7fa4\u4eba\u3001\u6392\u5e8f\u3001\u9010\u4e2a\u8c03\u7528\u539f\u51fd\u6570\n<\/code><\/pre>\n\n\n\n
          \u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n
          \u88c5\u9970\u5668\u8d1f\u8d23\u201c\u6574\u4f53\u6d41\u7a0b\u201d\n\u539f\u51fd\u6570\u8d1f\u8d23\u201c\u5355\u4e2a\u5143\u7d20\u600e\u4e48\u5904\u7406\u201d\n<\/code><\/pre>\n\n\n\n
          \n\n\n\n
          10. \u5c0f\u7ec3\u4e60<\/h2>\n\n\n\n
          \u4f60\u53ef\u4ee5\u5224\u65ad\u4e0b\u9762\u8fd9\u4e2a\u88c5\u9970\u5668\u4e2d\uff0c\u54ea\u4e00\u53e5\u662f\u5728\u201c\u8c03\u7528\u539f\u51fd\u6570\u201d\uff1f<\/p>\n\n\n\n
          def repeat_twice(func):\n    def wrapper():\n        func()\n        func()\n\n    return wrapper\n\n\n@repeat_twice\ndef say_hi():\n    print(\"hi\")\n\n\nsay_hi()\n<\/code><\/pre>\n\n\n\n
          \u63d0\u793a\uff1a\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u539f\u51fd\u6570\u4e0d\u662f\u88ab\u8c03\u7528\u4e00\u6b21\uff0c\u800c\u662f\u88ab\u8c03\u7528\u4e86\u4e24\u6b21\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
          1. \u9898\u76ee\u8003\u70b9 \u8fd9\u9053\u9898\u4e3b\u8981\u8003 4 \u4e2a\u70b9\uff1a \u591a\u4eba\u4fe1\u606f\u5c31\u662f\uff1a 2. \u5ba1\u9898 \u9898\u76ee\u7ed9\u4f60 N \u4e2a\u4eba\u7684\u4fe1\u606f\u3002\u6bcf\u4e2a\u4eba\u4e00\u884c\uff0c\u5305 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-2240","post","type-post","status-publish","format-standard","hentry","category-text"],"_links":{"self":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=2240"}],"version-history":[{"count":2,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2240\/revisions"}],"predecessor-version":[{"id":2243,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2240\/revisions\/2243"}],"wp:attachment":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=2240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=2240"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=2240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}