{"id":1011319,"date":"2024-12-27T11:28:58","date_gmt":"2024-12-27T03:28:58","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1011319.html"},"modified":"2024-12-27T11:29:00","modified_gmt":"2024-12-27T03:29:00","slug":"python-%e5%a6%82%e4%bd%95%e8%a1%a8%e7%a4%ba%e7%a9%ba%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1011319.html","title":{"rendered":"python \u5982\u4f55\u8868\u793a\u7a7a\u547d\u4ee4"},"content":{"rendered":"

\"python<\/p>\n

\u5728Python\u4e2d\uff0c\u7a7a\u547d\u4ee4\u6216\u5360\u4f4d\u7b26\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u8868\u793a\uff1a\u4f7f\u7528 pass<\/code> \u5173\u952e\u5b57\u3001\u4f7f\u7528 ...<\/code>\uff08\u7701\u7565\u53f7\uff09\u3001\u4f7f\u7528 None<\/code> \u4f5c\u4e3a\u51fd\u6570\u7684\u9ed8\u8ba4\u8fd4\u56de\u503c<\/strong>\u3002\u5176\u4e2d\uff0c\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 pass<\/code> \u5173\u952e\u5b57\uff0c\u5b83\u7528\u4e8e\u5728\u9700\u8981\u4e00\u4e2a\u8bed\u6cd5\u4e0a\u6709\u6548\u7684\u7a7a\u5757\u65f6\u4f7f\u7528\uff0c\u4f8b\u5982\u5728\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6216\u7c7b\u7684\u7ed3\u6784\u65f6\uff0c\u4f46\u8fd8\u6ca1\u6709\u5177\u4f53\u5b9e\u73b0\u7ec6\u8282\u3002\u4ee5\u4e0b\u662f\u5bf9 pass<\/code> \u5173\u952e\u5b57\u7684\u8be6\u7ec6\u63cf\u8ff0\uff1a<\/p>\n<\/p>\n

\u4f7f\u7528 pass<\/code> \u5173\u952e\u5b57<\/h3>\n<\/p>\n

pass<\/code> \u662fPython\u4e2d\u7684\u4e00\u4e2a\u5360\u4f4d\u7b26\u8bed\u53e5\uff0c\u5b83\u4e0d\u4f1a\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u3002\u5f53\u4f60\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u9700\u8981\u5360\u636e\u67d0\u4e2a\u4ee3\u7801\u5757\u7684\u60c5\u51b5\uff0c\u800c\u4f60\u6682\u65f6\u4e0d\u60f3\u5b9e\u73b0\u8fd9\u4e2a\u4ee3\u7801\u5757\u7684\u529f\u80fd\uff0c\u8fd9\u65f6 pass<\/code> \u5c31\u6d3e\u4e0a\u7528\u573a\u4e86\u3002\u5b83\u5141\u8bb8\u4f60\u5728\u4fdd\u6301\u7a0b\u5e8f\u7ed3\u6784\u5b8c\u6574\u7684\u60c5\u51b5\u4e0b\uff0c\u63a8\u8fdf\u5b9e\u73b0\u5177\u4f53\u7684\u903b\u8f91\u3002<\/p>\n<\/p>\n

def my_function():<\/p>\n
    pass<\/p>\n
class MyClass:<\/p>\n
    pass<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0cmy_function<\/code> \u548c MyClass<\/code> \u90fd\u88ab\u5b9a\u4e49\u4e86\uff0c\u4f46\u5b83\u4eec\u76ee\u524d\u6ca1\u6709\u4efb\u4f55\u5b9e\u73b0\u3002\u4f7f\u7528 pass<\/code> \u53ef\u4ee5\u8ba9\u4f60\u5728\u4e0d\u7834\u574f\u7a0b\u5e8f\u7ed3\u6784\u7684\u60c5\u51b5\u4e0b\uff0c\u7ee7\u7eed\u7f16\u5199\u5176\u4ed6\u90e8\u5206\u7684\u4ee3\u7801\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u4f7f\u7528 ...<\/code>\uff08\u7701\u7565\u53f7\uff09<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u7701\u7565\u53f7 ...<\/code> \u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u5360\u4f4d\u7b26\u4f7f\u7528\uff0c\u5c24\u5176\u662f\u5728\u51fd\u6570\u6216\u7c7b\u7684\u65b9\u6cd5\u4e2d\uff0c\u8868\u793a\u4f60\u8ba1\u5212\u5728\u4ee5\u540e\u8865\u5145\u5b9e\u73b0\u3002\u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u4e0d\u5982 pass<\/code> \u5e38\u89c1\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u4e5f\u5f88\u6709\u7528\u3002<\/p>\n<\/p>\n
def future_function():<\/p>\n
    ...<\/p>\n
class FutureClass:<\/p>\n
    ...<\/p>\n
<\/code><\/pre>\n<\/p>\n
...<\/code> \u53ef\u4ee5\u5e2e\u52a9\u6807\u8bb0\u9700\u8981\u8fdb\u4e00\u6b65\u5f00\u53d1\u7684\u90e8\u5206\uff0c\u4f7f\u4ee3\u7801\u5728\u89c6\u89c9\u4e0a\u6e05\u6670\u53ef\u89c1\uff0c\u63d0\u9192\u5f00\u53d1\u8005\u9700\u8981\u5728\u5c06\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528 None<\/code> \u4f5c\u4e3a\u51fd\u6570\u7684\u9ed8\u8ba4\u8fd4\u56de\u503c<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u51fd\u6570\u5982\u679c\u6ca1\u6709\u663e\u5f0f\u5730\u8fd4\u56de\u503c\uff0c\u5219\u4f1a\u9ed8\u8ba4\u8fd4\u56de None<\/code>\u3002\u8fd9\u53ef\u4ee5\u7528\u4f5c\u4e00\u79cd\u8868\u793a\u51fd\u6570\u5f53\u524d\u4e0d\u8fd4\u56de\u4efb\u4f55\u6709\u610f\u4e49\u7ed3\u679c\u7684\u65b9\u5f0f\u3002<\/p>\n<\/p>\n
def empty_function():<\/p>\n
    return None<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5c3d\u7ba1\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u662f\u4e25\u683c\u610f\u4e49\u4e0a\u7684\u201c\u7a7a\u547d\u4ee4\u201d\uff0c\u4f46\u5b83\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u7528\u6765\u8868\u793a\u51fd\u6570\u76ee\u524d\u6ca1\u6709\u5177\u4f53\u7684\u8fd4\u56de\u503c\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u5728\u4e0a\u4e0b\u6587\u4e2d\u7684\u4f7f\u7528<\/h3>\n<\/p>\n
1. \u5728\u6761\u4ef6\u8bed\u53e5\u4e2d<\/h4>\n<\/p>\n
\u5728\u7f16\u5199\u6761\u4ef6\u8bed\u53e5\u65f6\uff0c\u6709\u65f6\u4f1a\u9047\u5230\u9700\u8981\u5728\u67d0\u4e2a\u6761\u4ef6\u4e0b\u6682\u65f6\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u7684\u60c5\u51b5\u3002\u6b64\u65f6\uff0cpass<\/code> \u8bed\u53e5\u53ef\u4ee5\u5e2e\u52a9\u4fdd\u6301\u4ee3\u7801\u7ed3\u6784\u7684\u5b8c\u6574\u6027\u3002<\/p>\n<\/p>\n
if some_condition:<\/p>\n
    pass<\/p>\n
else:<\/p>\n
    do_something_else()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5f53 some_condition<\/code> \u4e3a\u771f\u65f6\uff0c\u7a0b\u5e8f\u4e0d\u4f1a\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u4f46 else<\/code> \u5757\u4e2d\u7684\u4ee3\u7801\u4ecd\u7136\u4f1a\u6267\u884c\u3002<\/p>\n<\/p>\n
2. \u5728\u5faa\u73af\u4e2d<\/h4>\n<\/p>\n
\u5728\u5faa\u73af\u4e2d\uff0cpass<\/code> \u4e5f\u53ef\u4ee5\u7528\u4e8e\u5360\u636e\u4e00\u4e2a\u5faa\u73af\u4f53\u7684\u4f4d\u7f6e\uff0c\u5f53\u4f60\u9700\u8981\u6682\u65f6\u8df3\u8fc7\u67d0\u4e2a\u5faa\u73af\u7684\u5177\u4f53\u5b9e\u73b0\u65f6\u53ef\u4ee5\u4f7f\u7528\u3002<\/p>\n<\/p>\n
for item in iterable:<\/p>\n
    pass<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u4e2a\u5faa\u73af\u7ed3\u6784\u6709\u6548\uff0c\u4f46\u4e0d\u4f1a\u5bf9 iterable<\/code> \u4e2d\u7684\u4efb\u4f55\u9879\u6267\u884c\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u7684\u4f5c\u7528<\/h3>\n<\/p>\n
\u5728\u8f6f\u4ef6\u5f00\u53d1\u8fc7\u7a0b\u4e2d\uff0c\u4f7f\u7528\u7a7a\u547d\u4ee4\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u4fdd\u6301\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u7ed3\u6784\u7684\u5b8c\u6574\u6027\u3002\u5728\u7f16\u5199\u590d\u6742\u7cfb\u7edf\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u5148\u642d\u5efa\u6846\u67b6\uff0c\u518d\u9010\u6b65\u586b\u5145\u5177\u4f53\u7684\u903b\u8f91\u3002\u7a7a\u547d\u4ee4\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n
1. \u652f\u6301\u8fed\u4ee3\u5f00\u53d1<\/h4>\n<\/p>\n
\u5728\u91c7\u7528\u654f\u6377\u5f00\u53d1<\/a>\u6216\u8fed\u4ee3\u5f00\u53d1\u7684\u65b9\u6cd5\u65f6\uff0c\u5f00\u53d1\u8005\u901a\u5e38\u9700\u8981\u5148\u5b9a\u4e49\u597d\u7cfb\u7edf\u7684\u6574\u4f53\u7ed3\u6784\uff0c\u7136\u540e\u9010\u6b65\u5b9e\u73b0\u5404\u4e2a\u529f\u80fd\u6a21\u5757\u3002\u4f7f\u7528 pass<\/code> \u6216 ...<\/code> \u53ef\u4ee5\u786e\u4fdd\u5728\u7f16\u5199\u5b8c\u6574\u4ee3\u7801\u524d\uff0c\u7cfb\u7edf\u7ed3\u6784\u5df2\u7ecf\u5177\u5907\u3002<\/p>\n<\/p>\n
2. \u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027<\/h4>\n<\/p>\n
\u901a\u8fc7\u660e\u786e\u6807\u8bb0\u54ea\u4e9b\u90e8\u5206\u5c1a\u672a\u5b9e\u73b0\uff0c\u7a7a\u547d\u4ee4\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u5e2e\u52a9\u56e2\u961f\u6210\u5458\u5feb\u901f\u4e86\u89e3\u54ea\u4e9b\u529f\u80fd\u8fd8\u9700\u8981\u5f00\u53d1\u3002<\/p>\n<\/p>\n
3. \u6709\u52a9\u4e8e\u5355\u5143\u6d4b\u8bd5<\/h4>\n<\/p>\n
\u5728\u8fdb\u884c\u5355\u5143\u6d4b\u8bd5\u65f6\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528\u7a7a\u547d\u4ee4\u6765\u5b9a\u4e49\u6d4b\u8bd5\u7528\u4f8b\u7684\u9aa8\u67b6\uff0c\u786e\u4fdd\u6d4b\u8bd5\u6846\u67b6\u5df2\u7ecf\u5230\u4f4d\uff0c\u7136\u540e\u9010\u6b65\u5b9e\u73b0\u5404\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u6ce8\u610f\u4e8b\u9879<\/h3>\n<\/p>\n
\u867d\u7136\u7a7a\u547d\u4ee4\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u4f46\u4e5f\u9700\u8981\u8c28\u614e\u4f7f\u7528\u3002\u8fc7\u591a\u7684\u7a7a\u547d\u4ee4\u53ef\u80fd\u5bfc\u81f4\u4ee3\u7801\u4e2d\u51fa\u73b0\u5927\u91cf\u672a\u5b9e\u73b0\u7684\u529f\u80fd\uff0c\u589e\u52a0\u6280\u672f\u503a\u52a1\u3002\u56e0\u6b64\uff0c\u5f00\u53d1\u8005\u5e94\u5c3d\u91cf\u5728\u8fed\u4ee3\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u9010\u6b65\u586b\u5145\u8fd9\u4e9b\u7a7a\u547d\u4ee4\uff0c\u4ee5\u786e\u4fdd\u8f6f\u4ef6\u529f\u80fd\u7684\u5b8c\u6574\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<\/p>\n
\u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u5728Python\u7f16\u7a0b\u4e2d\uff0c\u7a7a\u547d\u4ee4\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u4fdd\u6301\u4ee3\u7801\u7ed3\u6784\u7684\u5b8c\u6574\u6027\uff0c\u652f\u6301\u8fed\u4ee3\u5f00\u53d1\u548c\u56e2\u961f\u534f\u4f5c\u3002\u901a\u8fc7\u6b63\u786e\u4f7f\u7528 pass<\/code>\u3001...<\/code> \u548c None<\/code>\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u4ee3\u7801\u7684\u5b9e\u73b0\u8fc7\u7a0b\uff0c\u786e\u4fdd\u9879\u76ee\u80fd\u591f\u987a\u5229\u63a8\u8fdb\u3002\u65e0\u8bba\u662f\u5728\u5b9a\u4e49\u51fd\u6570\u548c\u7c7b\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8fd8\u662f\u5728\u7f16\u5199\u6761\u4ef6\u8bed\u53e5\u548c\u5faa\u73af\u65f6\uff0c\u7a7a\u547d\u4ee4\u90fd\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u6682\u65f6\u6401\u7f6e\u5177\u4f53\u7684\u5b9e\u73b0\u7ec6\u8282\uff0c\u4ece\u800c\u4e13\u6ce8\u4e8e\u6574\u4f53\u7ed3\u6784\u548c\u8bbe\u8ba1\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u4ec0\u4e48\u662f\u7a7a\u547d\u4ee4\u5728Python\u4e2d\uff1f<\/strong>
\u7a7a\u547d\u4ee4\u5728Python\u4e2d\u901a\u5e38\u6307\u7684\u662f\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u7684\u8bed\u53e5\u3002\u6700\u5e38\u89c1\u7684\u8868\u793a\u7a7a\u547d\u4ee4\u7684\u65b9\u6cd5\u662f\u4f7f\u7528pass<\/code>\u8bed\u53e5\u3002pass<\/code>\u8bed\u53e5\u662f\u4e00\u79cd\u5360\u4f4d\u7b26\uff0c\u901a\u5e38\u7528\u4e8e\u5b9a\u4e49\u4e00\u4e2a\u7a7a\u7684\u51fd\u6570\u3001\u7c7b\u6216\u63a7\u5236\u6d41\u7ed3\u6784\uff0c\u4ee5\u4fbf\u5728\u540e\u7eed\u5f00\u53d1\u4e2d\u6dfb\u52a0\u5177\u4f53\u7684\u5b9e\u73b0\u3002<\/p>\n
\u5982\u4f55\u5728\u6761\u4ef6\u8bed\u53e5\u4e2d\u4f7f\u7528\u7a7a\u547d\u4ee4\uff1f<\/strong>
\u5728\u6761\u4ef6\u8bed\u53e5\u4e2d\uff0c\u5982\u679c\u67d0\u4e2a\u6761\u4ef6\u6ee1\u8db3\u65f6\u4e0d\u9700\u8981\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\uff0c\u53ef\u4ee5\u4f7f\u7528pass<\/code>\u6765\u8868\u793a\u3002\u4f8b\u5982\uff1a  <\/p>\n
if condition:\n    pass  # \u8fd9\u91cc\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\nelse:\n    print("Condition not met.")\n<\/code><\/pre>\n
\u8fd9\u79cd\u5199\u6cd5\u5728\u8c03\u8bd5\u6216\u5f00\u53d1\u65f6\u975e\u5e38\u6709\u7528\uff0c\u53ef\u4ee5\u6682\u65f6\u5360\u7528\u4ee3\u7801\u4f4d\u7f6e\u800c\u4e0d\u5f71\u54cd\u7a0b\u5e8f\u7684\u8fd0\u884c\u3002<\/p>\n
\u7a7a\u547d\u4ee4\u4f1a\u5f71\u54cd\u7a0b\u5e8f\u7684\u6027\u80fd\u5417\uff1f<\/strong>
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