{"id":1124439,"date":"2025-01-08T19:41:32","date_gmt":"2025-01-08T11:41:32","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1124439.html"},"modified":"2025-01-08T19:41:34","modified_gmt":"2025-01-08T11:41:34","slug":"python%e4%b8%ad%e4%b8%a4%e4%b8%aadef%e5%a6%82%e4%bd%95%e4%ba%92%e7%9b%b8%e8%af%bb%e5%8f%96%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1124439.html","title":{"rendered":"python\u4e2d\u4e24\u4e2adef\u5982\u4f55\u4e92\u76f8\u8bfb\u53d6\u53c2\u6570"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25085508\/414ddb5e-68f6-4e1d-bac3-63625a67dcdc.webp\" alt=\"python\u4e2d\u4e24\u4e2adef\u5982\u4f55\u4e92\u76f8\u8bfb\u53d6\u53c2\u6570\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u4e24\u4e2adef\u5982\u4f55\u4e92\u76f8\u8bfb\u53d6\u53c2\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f20\u9012\u53c2\u6570\u3001\u5168\u5c40\u53d8\u91cf\u3001\u7c7b\u548c\u5bf9\u8c61\u7b49\u65b9\u5f0f\u5b9e\u73b0\u3002<\/strong> \u5176\u4e2d\uff0c<strong>\u901a\u8fc7\u4f20\u9012\u53c2\u6570<\/strong>\u662f\u6700\u5e38\u7528\u548c\u63a8\u8350\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u7b26\u5408\u51fd\u6570\u7684\u5c01\u88c5\u6027\u548c\u72ec\u7acb\u6027\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u5c55\u5f00\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u5b9e\u73b0\u4e24\u4e2adef\u51fd\u6570\u4e92\u76f8\u8bfb\u53d6\u53c2\u6570\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u901a\u8fc7\u53c2\u6570\u4f20\u9012\u5b9e\u73b0\u51fd\u6570\u95f4\u53c2\u6570\u8bfb\u53d6<\/h3>\n<\/p>\n<p><h4>1.1 \u51fd\u6570\u8c03\u7528\u65f6\u4f20\u9012\u53c2\u6570<\/h4>\n<\/p>\n<p><p>\u6700\u7b80\u5355\u548c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u901a\u8fc7\u51fd\u6570\u8c03\u7528\u65f6\u4f20\u9012\u53c2\u6570\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e24\u4e2a\u51fd\u6570 <code>func_a<\/code> \u548c <code>func_b<\/code>\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u8c03\u7528 <code>func_b<\/code> \u65f6\u5c06 <code>func_a<\/code> \u7684\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def func_a(x):<\/p>\n<p>    y = x + 2<\/p>\n<p>    return func_b(y)<\/p>\n<p>def func_b(y):<\/p>\n<p>    return y * 2<\/p>\n<p>result = func_a(3)<\/p>\n<p>print(result)  # \u8f93\u51fa\u7ed3\u679c\u4e3a 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>func_a<\/code> \u63a5\u6536\u4e00\u4e2a\u53c2\u6570 <code>x<\/code>\uff0c\u8ba1\u7b97\u51fa <code>y<\/code> \u540e\uff0c\u5c06 <code>y<\/code> \u4f20\u9012\u7ed9 <code>func_b<\/code>\uff0c<code>func_b<\/code> \u8fdb\u4e00\u6b65\u5904\u7406 <code>y<\/code> \u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n<\/p>\n<p><h4>1.2 \u4f7f\u7528\u53ef\u53d8\u53c2\u6570<\/h4>\n<\/p>\n<p><p>\u5982\u679c\u51fd\u6570\u4e4b\u95f4\u9700\u8981\u4f20\u9012\u591a\u4e2a\u53c2\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u53ef\u53d8\u53c2\u6570\uff08*args \u548c kwargs\uff09\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def func_a(*args, kwargs):<\/p>\n<p>    return func_b(*args, kwargs)<\/p>\n<p>def func_b(x, y):<\/p>\n<p>    return x + y<\/p>\n<p>result = func_a(3, y=4)<\/p>\n<p>print(result)  # \u8f93\u51fa\u7ed3\u679c\u4e3a 7<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>func_a<\/code> \u63a5\u6536\u4e0d\u5b9a\u6570\u91cf\u7684\u53c2\u6570\uff0c\u5e76\u5c06\u5176\u4f20\u9012\u7ed9 <code>func_b<\/code>\uff0c<code>func_b<\/code> \u5904\u7406\u8fd9\u4e9b\u53c2\u6570\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u4f7f\u7528\u5168\u5c40\u53d8\u91cf<\/h3>\n<\/p>\n<p><h4>2.1 \u5b9a\u4e49\u5168\u5c40\u53d8\u91cf<\/h4>\n<\/p>\n<p><p>\u5168\u5c40\u53d8\u91cf\u53ef\u4ee5\u5728\u591a\u4e2a\u51fd\u6570\u4e4b\u95f4\u5171\u4eab\uff0c\u4f46\u4f7f\u7528\u5168\u5c40\u53d8\u91cf\u4f1a\u964d\u4f4e\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\uff0c\u56e0\u6b64\u4e0d\u63a8\u8350\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\uff0c\u9664\u975e\u6709\u7279\u6b8a\u9700\u6c42\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">global_var = 0<\/p>\n<p>def func_a(x):<\/p>\n<p>    global global_var<\/p>\n<p>    global_var = x + 2<\/p>\n<p>    return func_b()<\/p>\n<p>def func_b():<\/p>\n<p>    global global_var<\/p>\n<p>    return global_var * 2<\/p>\n<p>result = func_a(3)<\/p>\n<p>print(result)  # \u8f93\u51fa\u7ed3\u679c\u4e3a 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>global_var<\/code> \u662f\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\uff0c<code>func_a<\/code> \u548c <code>func_b<\/code> \u90fd\u53ef\u4ee5\u8bbf\u95ee\u5e76\u4fee\u6539\u5b83\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001\u4f7f\u7528\u7c7b\u548c\u5bf9\u8c61<\/h3>\n<\/p>\n<p><h4>3.1 \u4f7f\u7528\u7c7b\u7684\u5b9e\u4f8b\u53d8\u91cf<\/h4>\n<\/p>\n<p><p>\u4f7f\u7528\u7c7b\u548c\u5bf9\u8c61\u53ef\u4ee5\u5f88\u597d\u5730\u5c01\u88c5\u6570\u636e\u548c\u884c\u4e3a\uff0c\u4f7f\u4ee3\u7801\u66f4\u52a0\u6a21\u5757\u5316\u548c\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class MyClass:<\/p>\n<p>    def __init__(self):<\/p>\n<p>        self.value = 0<\/p>\n<p>    def func_a(self, x):<\/p>\n<p>        self.value = x + 2<\/p>\n<p>        return self.func_b()<\/p>\n<p>    def func_b(self):<\/p>\n<p>        return self.value * 2<\/p>\n<p>obj = MyClass()<\/p>\n<p>result = obj.func_a(3)<\/p>\n<p>print(result)  # \u8f93\u51fa\u7ed3\u679c\u4e3a 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>MyClass<\/code> \u5305\u542b\u4e24\u4e2a\u65b9\u6cd5 <code>func_a<\/code> \u548c <code>func_b<\/code>\uff0c\u5b83\u4eec\u901a\u8fc7\u5b9e\u4f8b\u53d8\u91cf <code>self.value<\/code> \u5171\u4eab\u6570\u636e\u3002<\/p>\n<\/p>\n<p><h4>3.2 \u4f7f\u7528\u7c7b\u7684\u9759\u6001\u65b9\u6cd5\u548c\u7c7b\u53d8\u91cf<\/h4>\n<\/p>\n<p><p>\u5982\u679c\u51fd\u6570\u4e0d\u4f9d\u8d56\u4e8e\u5b9e\u4f8b\uff0c\u53ef\u4ee5\u4f7f\u7528\u7c7b\u53d8\u91cf\u548c\u9759\u6001\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class MyClass:<\/p>\n<p>    value = 0<\/p>\n<p>    @staticmethod<\/p>\n<p>    def func_a(x):<\/p>\n<p>        MyClass.value = x + 2<\/p>\n<p>        return MyClass.func_b()<\/p>\n<p>    @staticmethod<\/p>\n<p>    def func_b():<\/p>\n<p>        return MyClass.value * 2<\/p>\n<p>result = MyClass.func_a(3)<\/p>\n<p>print(result)  # \u8f93\u51fa\u7ed3\u679c\u4e3a 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>MyClass<\/code> \u7684\u7c7b\u53d8\u91cf <code>value<\/code> \u548c\u9759\u6001\u65b9\u6cd5 <code>func_a<\/code>\u3001<code>func_b<\/code> \u7528\u4e8e\u5171\u4eab\u6570\u636e\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u95ed\u5305\u548c\u88c5\u9970\u5668<\/h3>\n<\/p>\n<p><h4>4.1 \u4f7f\u7528\u95ed\u5305<\/h4>\n<\/p>\n<p><p>\u95ed\u5305\u662f\u4e00\u79cd\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u8bb0\u4f4f\u5e76\u8bbf\u95ee\u5176\u5b9a\u4e49\u65f6\u6240\u5728\u7684\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u5728\u5176\u5b9a\u4e49\u4f5c\u7528\u57df\u4e4b\u5916\u88ab\u8c03\u7528\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def outer_func(x):<\/p>\n<p>    y = x + 2<\/p>\n<p>    def inner_func():<\/p>\n<p>        return y * 2<\/p>\n<p>    return inner_func()<\/p>\n<p>result = outer_func(3)<\/p>\n<p>print(result)  # \u8f93\u51fa\u7ed3\u679c\u4e3a 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>inner_func<\/code> \u662f\u4e00\u4e2a\u95ed\u5305\uff0c\u5b83\u8bb0\u4f4f\u4e86 <code>outer_func<\/code> \u7684\u5c40\u90e8\u53d8\u91cf <code>y<\/code>\u3002<\/p>\n<\/p>\n<p><h4>4.2 \u4f7f\u7528\u88c5\u9970\u5668<\/h4>\n<\/p>\n<p><p>\u88c5\u9970\u5668\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u95ed\u5305\uff0c\u901a\u5e38\u7528\u4e8e\u5728\u51fd\u6570\u8c03\u7528\u524d\u540e\u6dfb\u52a0\u989d\u5916\u7684\u884c\u4e3a\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def decorator(func):<\/p>\n<p>    def wrapper(x):<\/p>\n<p>        y = x + 2<\/p>\n<p>        return func(y)<\/p>\n<p>    return wrapper<\/p>\n<p>@decorator<\/p>\n<p>def func_b(y):<\/p>\n<p>    return y * 2<\/p>\n<p>result = func_b(3)<\/p>\n<p>print(result)  # \u8f93\u51fa\u7ed3\u679c\u4e3a 10<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u88c5\u9970\u5668 <code>decorator<\/code> \u4fee\u6539\u4e86 <code>func_b<\/code> \u7684\u884c\u4e3a\uff0c\u4f7f\u5176\u53ef\u4ee5\u63a5\u6536\u7531 <code>x<\/code> \u8ba1\u7b97\u5f97\u5230\u7684 <code>y<\/code>\u3002<\/p>\n<\/p>\n<p><h3>\u7ed3\u8bba<\/h3>\n<\/p>\n<p><p>\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Python\u4e2d\u5b9e\u73b0\u4e24\u4e2adef\u51fd\u6570\u4e92\u76f8\u8bfb\u53d6\u53c2\u6570\u3002<strong>\u901a\u8fc7\u53c2\u6570\u4f20\u9012<\/strong>\u662f\u6700\u5e38\u7528\u548c\u63a8\u8350\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u7b26\u5408\u51fd\u6570\u7684\u5c01\u88c5\u6027\u548c\u72ec\u7acb\u6027\u3002<strong>\u4f7f\u7528\u5168\u5c40\u53d8\u91cf<\/strong>\u867d\u7136\u7b80\u5355\uff0c\u4f46\u4f1a\u964d\u4f4e\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\u3002<strong>\u4f7f\u7528\u7c7b\u548c\u5bf9\u8c61<\/strong>\u53ef\u4ee5\u5f88\u597d\u5730\u5c01\u88c5\u6570\u636e\u548c\u884c\u4e3a\uff0c\u4f7f\u4ee3\u7801\u66f4\u52a0\u6a21\u5757\u5316\u548c\u6613\u4e8e\u7ef4\u62a4\u3002<strong>\u95ed\u5305\u548c\u88c5\u9970\u5668<\/strong>\u5219\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u5171\u4eab\u6570\u636e\u548c\u884c\u4e3a\u3002\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u9ad8\u6548\u3001\u6613\u8bfb\u548c\u6613\u7ef4\u62a4\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5728Python\u4e2d\uff0c\u5982\u4f55\u8ba9\u4e24\u4e2a\u51fd\u6570\u5171\u4eab\u53c2\u6570\uff1f<\/strong><br \/>\u53ef\u4ee5\u901a\u8fc7\u5c06\u53c2\u6570\u4f5c\u4e3a\u51fd\u6570\u7684\u8f93\u5165\uff0c\u6216\u8005\u4f7f\u7528\u5168\u5c40\u53d8\u91cf\u6765\u5b9e\u73b0\u4e24\u4e2a\u51fd\u6570\u4e4b\u95f4\u7684\u53c2\u6570\u5171\u4eab\u3002\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u5c06\u53c2\u6570\u5c01\u88c5\u5728\u4e00\u4e2a\u7c7b\u6216\u5b57\u5178\u4e2d\uff0c\u7136\u540e\u5c06\u8fd9\u4e2a\u5bf9\u8c61\u4f20\u9012\u7ed9\u4e24\u4e2a\u51fd\u6570\u3002\u8fd9\u79cd\u65b9\u5f0f\u80fd\u591f\u4fdd\u6301\u4ee3\u7801\u7684\u6e05\u6670\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528\u8fd4\u56de\u503c\u6765\u4f20\u9012\u6570\u636e\u7ed9\u53e6\u4e00\u4e2a\u51fd\u6570\uff1f<\/strong><br \/>\u5728\u4e00\u4e2a\u51fd\u6570\u4e2d\u5904\u7406\u6570\u636e\u5e76\u8fd4\u56de\u503c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728\u53e6\u4e00\u4e2a\u51fd\u6570\u8c03\u7528\u4e2d\u4f7f\u7528\u8fd9\u4e9b\u8fd4\u56de\u503c\u3002\u8fd9\u6837\uff0c\u51fd\u6570\u4e4b\u95f4\u7684\u53c2\u6570\u4f20\u9012\u53d8\u5f97\u7075\u6d3b\u4e14\u7b80\u6d01\u3002\u4f8b\u5982\uff0c\u51fd\u6570A\u8ba1\u7b97\u67d0\u4e2a\u503c\u5e76\u8fd4\u56de\uff0c\u51fd\u6570B\u53ef\u4ee5\u63a5\u6536\u8fd9\u4e2a\u503c\u5e76\u8fdb\u884c\u540e\u7eed\u64cd\u4f5c\u3002<\/p>\n<p><strong>\u662f\u5426\u53ef\u4ee5\u4f7f\u7528\u7c7b\u6765\u7ec4\u7ec7\u591a\u4e2a\u51fd\u6570\u5e76\u5171\u4eab\u53c2\u6570\uff1f<\/strong><br \/>\u662f\u7684\uff0c\u4f7f\u7528\u7c7b\u53ef\u4ee5\u6709\u6548\u5730\u7ec4\u7ec7\u591a\u4e2a\u51fd\u6570\u3002\u901a\u8fc7\u5b9a\u4e49\u7c7b\u7684\u5c5e\u6027\uff0c\u60a8\u53ef\u4ee5\u5728\u7c7b\u7684\u65b9\u6cd5\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u3002\u8fd9\u79cd\u65b9\u5f0f\u4f7f\u5f97\u4ee3\u7801\u66f4\u5177\u7ed3\u6784\u6027\uff0c\u5e76\u4e14\u80fd\u591f\u5229\u7528\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u4f18\u52bf\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u91cd\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u4e24\u4e2adef\u5982\u4f55\u4e92\u76f8\u8bfb\u53d6\u53c2\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f20\u9012\u53c2\u6570\u3001\u5168\u5c40\u53d8\u91cf\u3001\u7c7b\u548c\u5bf9\u8c61\u7b49\u65b9\u5f0f\u5b9e\u73b0\u3002 \u5176\u4e2d\uff0c\u901a\u8fc7\u4f20\u9012 [&hellip;]","protected":false},"author":3,"featured_media":1124450,"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\/1124439"}],"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=1124439"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1124439\/revisions"}],"predecessor-version":[{"id":1124453,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1124439\/revisions\/1124453"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1124450"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1124439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1124439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1124439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}