{"id":2723,"date":"2025-03-14T21:57:14","date_gmt":"2025-03-14T13:57:14","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2723"},"modified":"2025-03-14T21:57:14","modified_gmt":"2025-03-14T13:57:14","slug":"python-3-%e6%b3%a8%e9%87%8a%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/14\/python-3-%e6%b3%a8%e9%87%8a%e8%af%a6%e8%a7%a3\/","title":{"rendered":"Python 3 \u6ce8\u91ca\u8be6\u89e3"},"content":{"rendered":"\n

\u5728 Python \u4ee3\u7801\u4e2d\uff0c\u6ce8\u91ca\uff08comments\uff09<\/strong> \u7528\u4e8e\u6dfb\u52a0\u8bf4\u660e\u548c\u89e3\u91ca\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3\u4ee3\u7801\u903b\u8f91\u3002\u6ce8\u91ca\u4e0d\u4f1a\u88ab Python \u89e3\u91ca\u5668\u6267\u884c\uff0c\u4ec5\u7528\u4e8e\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u7ef4\u62a4\u6027\u3002Python \u63d0\u4f9b \u5355\u884c\u6ce8\u91ca\u3001\u591a\u884c\u6ce8\u91ca\u548c\u6587\u6863\u5b57\u7b26\u4e32\uff08docstring\uff09<\/strong> \u4e09\u79cd\u65b9\u5f0f\u3002<\/p>\n\n\n\n

\n\n\n\n

1. \u5355\u884c\u6ce8\u91ca\uff08#\uff09<\/strong><\/h2>\n\n\n\n

\u5355\u884c\u6ce8\u91ca\u4f7f\u7528 #<\/code> \u53f7<\/strong> \u4f5c\u4e3a\u5f00\u5934\uff0c\u540e\u9762\u7684\u5185\u5bb9\u4e0d\u4f1a\u88ab Python \u89e3\u91ca\u5668\u6267\u884c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n

# \u8fd9\u662f\u4e00\u4e2a\u5355\u884c\u6ce8\u91ca\nprint(\"Hello, Python!\")  # \u8fd9\u6761\u8bed\u53e5\u4f1a\u8f93\u51fa \"Hello, Python!\"<\/code><\/pre>\n\n\n\n
\ud83d\udca1 \u6ce8\u610f<\/strong>\uff1a<\/p>\n\n\n\n
    \n
  • #<\/code> \u53f7\u53ef\u4ee5\u51fa\u73b0\u5728\u4ee3\u7801\u884c\u7684\u5f00\u5934\u6216\u672b\u5c3e\u3002<\/li>\n\n\n\n
  • #<\/code> \u53f7\u540e\u9762\u7684\u6587\u672c\u4e0d\u4f1a\u88ab\u6267\u884c\uff0c\u4ec5\u4f5c\u4e3a\u6ce8\u91ca\u4f7f\u7528\u3002<\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n
    2. \u591a\u884c\u6ce8\u91ca\uff08\u8fde\u7eed\u7684 # \u6216 \u4e09\u5f15\u53f7\uff09<\/strong><\/h2>\n\n\n\n
    Python \u6ca1\u6709\u4e13\u95e8\u7684\u591a\u884c\u6ce8\u91ca\u8bed\u6cd5\uff0c\u4f46\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n\n\n\n
    \uff081\uff09\u8fde\u7eed\u4f7f\u7528 #<\/code><\/strong><\/h3>\n\n\n\n
    # \u8fd9\u662f\u4e00\u4e2a\u591a\u884c\u6ce8\u91ca\n# \u9002\u7528\u4e8e\u7b80\u5355\u7684\u6ce8\u91ca\n# \u6bcf\u4e00\u884c\u90fd\u9700\u8981\u4f7f\u7528 #\nprint(\"Hello, World!\")<\/code><\/pre>\n\n\n\n
    \uff082\uff09\u4f7f\u7528\u4e09\u5f15\u53f7\uff08'''<\/code> \u6216 \"\"\"<\/code>\uff09<\/strong><\/h3>\n\n\n\n
    Python \u5141\u8bb8\u4f7f\u7528\u4e09\u5f15\u53f7\uff08'''<\/code> \u6216 \"\"\"<\/code>\uff09\u6765\u7f16\u5199\u591a\u884c\u6ce8\u91ca\uff1a<\/p>\n\n\n\n
    '''\n\u8fd9\u662f\u4e00\u6bb5\u591a\u884c\u6ce8\u91ca\nPython \u89e3\u91ca\u5668\u4e0d\u4f1a\u6267\u884c\u8fd9\u4e9b\u5185\u5bb9\n\u9002\u7528\u4e8e\u957f\u7bc7\u6ce8\u91ca\n'''\nprint(\"Hello, Python!\")<\/code><\/pre>\n\n\n\n
    \u6216\u8005\uff1a<\/p>\n\n\n\n
    \"\"\"\n\u8fd9\u662f\u53e6\u4e00\u4e2a\u591a\u884c\u6ce8\u91ca\u7684\u793a\u4f8b\n\u4e09\u5f15\u53f7\u53ef\u4ee5\u7528\u5355\u5f15\u53f7\u6216\u53cc\u5f15\u53f7\n\"\"\"\nprint(\"Python is fun!\")<\/code><\/pre>\n\n\n\n
    \ud83d\udca1 \u6ce8\u610f<\/strong>\uff1a<\/p>\n\n\n\n
      \n
    • \u4e09\u5f15\u53f7\u7684\u65b9\u5f0f \u5b9e\u9645\u4e0a\u662f\u5b57\u7b26\u4e32\uff0c\u800c\u4e0d\u662f\u4e25\u683c\u610f\u4e49\u4e0a\u7684\u6ce8\u91ca<\/strong>\u3002\u5982\u679c\u6ca1\u6709\u8d4b\u503c\u7ed9\u53d8\u91cf\uff0c\u5b83\u4e0d\u4f1a\u5f71\u54cd\u7a0b\u5e8f\u6267\u884c\u3002<\/li>\n\n\n\n
    • \u63a8\u8350\u7528\u4e8e\u51fd\u6570\u3001\u7c7b\u6216\u6a21\u5757\u7684\u6587\u6863\u5b57\u7b26\u4e32\uff08Docstring\uff09<\/strong>\u3002<\/li>\n<\/ul>\n\n\n\n
      \n\n\n\n
      3. \u6587\u6863\u5b57\u7b26\u4e32\uff08Docstring\uff09<\/strong><\/h2>\n\n\n\n
      \u6587\u6863\u5b57\u7b26\u4e32\uff08docstring\uff09<\/strong> \u662f Python \u7684\u7279\u6b8a\u6ce8\u91ca\uff0c\u7528\u4e8e\u63cf\u8ff0\u6a21\u5757\u3001\u7c7b\u3001\u65b9\u6cd5\u6216\u51fd\u6570\u7684\u4f5c\u7528<\/strong>\uff0c\u53ef\u4ee5\u901a\u8fc7 help()<\/code> \u51fd\u6570\u67e5\u770b\u3002<\/p>\n\n\n\n
      \uff081\uff09\u51fd\u6570\u7684 docstring<\/strong><\/h3>\n\n\n\n
      def add(a, b):\n    \"\"\"\u8fd4\u56de\u4e24\u4e2a\u6570\u7684\u548c\"\"\"\n    return a + b\n\nprint(add.__doc__)  # \u8f93\u51fa\uff1a\u8fd4\u56de\u4e24\u4e2a\u6570\u7684\u548c<\/code><\/pre>\n\n\n\n
      \uff082\uff09\u7c7b\u7684 docstring<\/strong><\/h3>\n\n\n\n
      class Person:\n    \"\"\"\u8fd9\u662f\u4e00\u4e2a\u8868\u793a\u4eba\u7684\u7c7b\"\"\"\n    def __init__(self, name, age):\n        self.name = name\n        self.age = age\n\nprint(Person.__doc__)  # \u8f93\u51fa\uff1a\u8fd9\u662f\u4e00\u4e2a\u8868\u793a\u4eba\u7684\u7c7b<\/code><\/pre>\n\n\n\n
      \uff083\uff09\u6a21\u5757\u7684 docstring<\/strong><\/h3>\n\n\n\n
      \"\"\"\n\u8fd9\u662f\u4e00\u4e2a\u793a\u4f8b Python \u6a21\u5757\n\u5305\u542b\u4e00\u4e9b\u57fa\u672c\u51fd\u6570\n\"\"\"\ndef greet():\n    \"\"\"\u6253\u5370\u95ee\u5019\u8bed\"\"\"\n    print(\"Hello, Python!\")\n\nprint(__doc__)  # \u8f93\u51fa\u6a21\u5757\u7684 docstring<\/code><\/pre>\n\n\n\n
      \ud83d\udca1 \u6587\u6863\u5b57\u7b26\u4e32\u7684\u7279\u70b9<\/strong>\uff1a<\/p>\n\n\n\n
        \n
      • \u4f7f\u7528\u4e09\u5f15\u53f7<\/strong>\uff08'''<\/code> \u6216 \"\"\"<\/code>\uff09\u3002<\/li>\n\n\n\n
      • \u901a\u5e38\u7528\u4e8e\u63cf\u8ff0\u51fd\u6570\u3001\u7c7b\u3001\u6a21\u5757\u7684\u529f\u80fd<\/strong>\uff0c\u5e2e\u52a9\u5176\u4ed6\u5f00\u53d1\u8005\u7406\u89e3\u4ee3\u7801\u3002<\/li>\n\n\n\n
      • \u53ef\u4ee5\u7528 help(\u51fd\u6570\u540d)<\/code> \u67e5\u770b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
          help(add)<\/code><\/pre>\n\n\n\n
        \u8f93\u51fa\uff1a<\/p>\n\n\n\n
          Help on function add in module __main__:\n\n  add(a, b)\n      \u8fd4\u56de\u4e24\u4e2a\u6570\u7684\u548c<\/code><\/pre>\n\n\n\n
        \n\n\n\n
        4. \u4ee3\u7801\u89c4\u8303\u4e0e\u6ce8\u91ca<\/strong><\/h2>\n\n\n\n
          \n
        • \u5c3d\u91cf\u5728\u4ee3\u7801\u590d\u6742\u7684\u5730\u65b9\u6dfb\u52a0\u6ce8\u91ca<\/strong>\uff0c\u4e0d\u8981\u5728\u663e\u800c\u6613\u89c1\u7684\u5730\u65b9\u5199\u6ce8\u91ca\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n\n\n\n
            x = 10  # \u8fd9\u4e2a\u6ce8\u91ca\u662f\u591a\u4f59\u7684<\/code><\/pre>\n\n\n\n
            \n
          • \u6ce8\u91ca\u5e94\u7b80\u6d01\u660e\u4e86<\/strong>\uff0c\u907f\u514d\u957f\u7bc7\u5927\u8bba\u5f71\u54cd\u4ee3\u7801\u53ef\u8bfb\u6027\u3002<\/li>\n\n\n\n
          • \u4f7f\u7528 docstring \u7f16\u5199 API \u6587\u6863<\/strong>\uff0c\u5bf9\u4e8e\u91cd\u8981\u7684\u7c7b\u548c\u51fd\u6570\uff0c\u5efa\u8bae\u5199\u6e05\u695a\u8f93\u5165\u3001\u8f93\u51fa\u548c\u529f\u80fd<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
              def multiply(a, b):\n      \"\"\"\n      \u8ba1\u7b97\u4e24\u4e2a\u6570\u7684\u4e58\u79ef\n      \u53c2\u6570\uff1a\n      a -- \u7b2c\u4e00\u4e2a\u6570\u5b57\n      b -- \u7b2c\u4e8c\u4e2a\u6570\u5b57\n      \u8fd4\u56de\u503c\uff1a\n      \u4e24\u4e2a\u6570\u7684\u4e58\u79ef\n      \"\"\"\n      return a * b<\/code><\/pre>\n\n\n\n
            \n\n\n\n
            \u603b\u7ed3<\/strong><\/h2>\n\n\n\n
            \u6ce8\u91ca\u7c7b\u578b<\/th>\u8bed\u6cd5<\/th>\u9002\u7528\u573a\u666f<\/th><\/tr><\/thead>
            \u5355\u884c\u6ce8\u91ca<\/strong><\/td>#<\/code><\/td>\u4ee3\u7801\u65c1\u8fb9\u6216\u5355\u72ec\u4e00\u884c\u7684\u6ce8\u91ca<\/td><\/tr>
            \u591a\u884c\u6ce8\u91ca<\/strong><\/td>'''<\/code> \u6216 \"\"\"<\/code><\/td>\u957f\u6bb5\u4ee3\u7801\u6ce8\u91ca\uff08\u4e0d\u63a8\u8350\uff0c\u5efa\u8bae\u7528\u6587\u6863\u5b57\u7b26\u4e32\uff09<\/td><\/tr>
            \u6587\u6863\u5b57\u7b26\u4e32<\/strong><\/td>'''<\/code> \u6216 \"\"\"<\/code><\/td>\u6a21\u5757\u3001\u7c7b\u3001\u51fd\u6570\u7684\u8be6\u7ec6\u8bf4\u660e<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
            Python 3 \u7684\u6ce8\u91ca\u53ef\u4ee5\u5e2e\u52a9\u4f60\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027<\/strong>\uff0c\u5408\u7406\u4f7f\u7528\u6ce8\u91ca\u53ef\u4ee5\u8ba9\u4f60\u7684\u4ee3\u7801\u66f4\u6e05\u6670\u3001\u66f4\u6613\u61c2\uff01\ud83c\udfaf\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u5728 Python \u4ee3\u7801\u4e2d\uff0c\u6ce8\u91ca\uff08comments\uff09 \u7528\u4e8e\u6dfb\u52a0\u8bf4\u660e\u548c\u89e3\u91ca\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3\u4ee3\u7801\u903b\u8f91\u3002\u6ce8\u91ca\u4e0d\u4f1a\u88ab P […]<\/p>\n","protected":false},"author":1,"featured_media":2724,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"class_list":["post-2723","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-3-"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2723","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2723"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2723\/revisions"}],"predecessor-version":[{"id":2725,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2723\/revisions\/2725"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/2724"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}