{"id":973455,"date":"2024-12-27T05:57:02","date_gmt":"2024-12-26T21:57:02","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/973455.html"},"modified":"2024-12-27T05:57:04","modified_gmt":"2024-12-26T21:57:04","slug":"%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e5%ad%97%e8%8a%82%e7%a0%81python","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/973455.html","title":{"rendered":"\u5982\u4f55\u67e5\u770b\u5b57\u8282\u7801python"},"content":{"rendered":"

\"\u5982\u4f55\u67e5\u770b\u5b57\u8282\u7801python\"<\/p>\n

\u67e5\u770bPython\u5b57\u8282\u7801\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5305\u62ec\u4f7f\u7528\u5185\u7f6e\u7684dis<\/code>\u6a21\u5757\u3001\u7b2c\u4e09\u65b9\u5de5\u5177\u5982py_compile<\/code>\u548cmarshal<\/code>\u6a21\u5757\u3001\u4ee5\u53ca\u4f7f\u7528Python\u7f16\u8bd1\u5668\u7684\u547d\u4ee4\u884c\u53c2\u6570\u3002\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u8f7b\u677e\u5730\u67e5\u770b\u548c\u5206\u6790Python\u4ee3\u7801\u7684\u5b57\u8282\u7801\uff0c\u63d0\u9ad8\u5bf9\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u7684\u7406\u89e3\u3002<\/strong>\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528Python\u7684\u5185\u7f6e\u6a21\u5757dis<\/code>\uff0c\u5b83\u53ef\u4ee5\u5c06Python\u6e90\u4ee3\u7801\u7f16\u8bd1\u540e\u7684\u5b57\u8282\u7801\u53cd\u6c47\u7f16\u6210\u4eba\u7c7b\u53ef\u8bfb\u7684\u683c\u5f0f\uff0c\u4ece\u800c\u5e2e\u52a9\u5f00\u53d1\u8005\u7406\u89e3Python\u7684\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n

dis<\/code>\u6a21\u5757\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u51fd\u6570\u8c03\u7528\uff0c\u5c06Python\u51fd\u6570\u7684\u5b57\u8282\u7801\u8f93\u51fa\u5728\u7ec8\u7aef\u6216\u65e5\u5fd7\u4e2d\u3002\u8fd9\u5bf9\u4e8e\u8c03\u8bd5\u3001\u4f18\u5316\u548c\u6559\u5b66\u90fd\u6709\u5f88\u5927\u7684\u5e2e\u52a9\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528dis<\/code>\u6a21\u5757\u67e5\u770b\u5b57\u8282\u7801\u4ee5\u53ca\u5176\u4ed6\u67e5\u770b\u5b57\u8282\u7801\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528 dis<\/code> \u6a21\u5757<\/h3>\n<\/p>\n

dis<\/code> \u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u7528\u4e8e\u53cd\u6c47\u7f16Python\u5b57\u8282\u7801\u3002\u5b83\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u5206\u6790Python\u7684\u5b57\u8282\u7801\u3002<\/p>\n<\/p>\n

1.1 \u4f7f\u7528 dis<\/code> \u6a21\u5757\u67e5\u770b\u51fd\u6570\u5b57\u8282\u7801<\/h4>\n<\/p>\n

\u8981\u67e5\u770bPython\u51fd\u6570\u7684\u5b57\u8282\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528dis<\/code>\u6a21\u5757\u7684dis()<\/code>\u51fd\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n

import dis<\/p>\n
def example_function(x):<\/p>\n
    return x + 1<\/p>\n
dis.dis(example_function)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cexample_function<\/code>\u662f\u4e00\u4e2a\u7b80\u5355\u7684Python\u51fd\u6570\u3002\u4f7f\u7528dis.dis(example_function)<\/code>\u53ef\u4ee5\u6253\u5370\u51fa\u8be5\u51fd\u6570\u7684\u5b57\u8282\u7801\u3002\u8f93\u51fa\u7ed3\u679c\u5c06\u5305\u542b\u64cd\u4f5c\u7801\u53ca\u5176\u5bf9\u5e94\u7684\u53c2\u6570\uff0c\u663e\u793a\u4e86Python\u89e3\u91ca\u5668\u5982\u4f55\u6267\u884c\u8be5\u51fd\u6570\u3002<\/p>\n<\/p>\n
1.2 \u5206\u6790\u5b57\u8282\u7801\u8f93\u51fa<\/h4>\n<\/p>\n
\u5b57\u8282\u7801\u8f93\u51fa\u901a\u5e38\u7531\u4e00\u7cfb\u5217\u7684\u6307\u4ee4\u7ec4\u6210\uff0c\u6bcf\u4e00\u884c\u663e\u793a\u4e00\u4e2a\u64cd\u4f5c\u7801\u53ca\u5176\u53ef\u9009\u53c2\u6570\u3002\u64cd\u4f5c\u7801\u901a\u5e38\u662f\u5b57\u6bcd\u7f29\u5199\uff0c\u5982LOAD_FAST<\/code>\u3001RETURN_VALUE<\/code>\u7b49\uff0c\u8fd9\u4e9b\u6307\u4ee4\u89e3\u91ca\u5668\u7528\u4e8e\u64cd\u4f5c\u6808\u4e0a\u7684\u503c\u3002<\/p>\n<\/p>\n
    \n
  • LOAD_FAST<\/strong>\uff1a\u4ece\u5c40\u90e8\u53d8\u91cf\u4e2d\u52a0\u8f7d\u4e00\u4e2a\u503c\u5230\u6808\u9876\u3002<\/li>\n
  • RETURN_VALUE<\/strong>\uff1a\u4ece\u6808\u9876\u5f39\u51fa\u4e00\u4e2a\u503c\u4f5c\u4e3a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u3002<\/li>\n<\/ul>\n
    \u901a\u8fc7\u5206\u6790\u8fd9\u4e9b\u6307\u4ee4\uff0c\u53ef\u4ee5\u4e86\u89e3\u51fd\u6570\u7684\u6267\u884c\u6d41\u7a0b\u4ee5\u53ca\u4f18\u5316\u7684\u53ef\u80fd\u6027\u3002<\/p>\n<\/p>\n
    \u4e8c\u3001\u4f7f\u7528 py_compile<\/code> \u548c marshal<\/code> \u6a21\u5757<\/h3>\n<\/p>\n
    \u9664\u4e86dis<\/code>\u6a21\u5757\uff0cPython\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u65b9\u6cd5\u6765\u67e5\u770b\u5b57\u8282\u7801\uff0c\u5982py_compile<\/code>\u548cmarshal<\/code>\u6a21\u5757\u3002<\/p>\n<\/p>\n
    2.1 \u4f7f\u7528 py_compile<\/code> \u7f16\u8bd1Python\u4ee3\u7801<\/h4>\n<\/p>\n
    py_compile<\/code>\u6a21\u5757\u7528\u4e8e\u5c06Python\u6e90\u6587\u4ef6\u7f16\u8bd1\u4e3a\u5b57\u8282\u7801\u6587\u4ef6\uff08.pyc<\/code>\u6587\u4ef6\uff09\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528py_compile<\/code>\u7f16\u8bd1Python\u6587\u4ef6\uff1a<\/p>\n<\/p>\n
    import py_compile<\/p>\n
    py_compile.compile('example.py')<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u6267\u884c\u4e0a\u8ff0\u4ee3\u7801\u540e\uff0c\u5c06\u5728\u540c\u4e00\u76ee\u5f55\u4e0b\u751f\u6210\u4e00\u4e2aexample.pyc<\/code>\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u5305\u542b\u7f16\u8bd1\u540e\u7684\u5b57\u8282\u7801\u3002<\/p>\n<\/p>\n
    2.2 \u8bfb\u53d6 .pyc<\/code> \u6587\u4ef6\u4e2d\u7684\u5b57\u8282\u7801<\/h4>\n<\/p>\n
    \u4f7f\u7528marshal<\/code>\u6a21\u5757\u53ef\u4ee5\u8bfb\u53d6.pyc<\/code>\u6587\u4ef6\u4e2d\u7684\u5b57\u8282\u7801\uff1a<\/p>\n<\/p>\n
    import marshal<\/p>\n
    with open('__pycache__\/example.cpython-38.pyc', 'rb') as f:<\/p>\n
        f.read(16)  # \u8df3\u8fc7\u6587\u4ef6\u5934<\/p>\n
        code = marshal.load(f)<\/p>\n
    import dis<\/p>\n
    dis.dis(code)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u67e5\u770b.pyc<\/code>\u6587\u4ef6\u4e2d\u7684\u5b57\u8282\u7801\uff0c\u8fdb\u4e00\u6b65\u4e86\u89e3Python\u4ee3\u7801\u7684\u6267\u884c\u3002<\/p>\n<\/p>\n
    \u4e09\u3001\u4f7f\u7528\u547d\u4ee4\u884c\u53c2\u6570\u67e5\u770b\u5b57\u8282\u7801<\/h3>\n<\/p>\n
    Python\u89e3\u91ca\u5668\u63d0\u4f9b\u4e86\u4e00\u4e9b\u547d\u4ee4\u884c\u53c2\u6570\uff0c\u53ef\u4ee5\u5e2e\u52a9\u67e5\u770b\u5b57\u8282\u7801\u3002<\/p>\n<\/p>\n
    3.1 \u4f7f\u7528 -m dis<\/code> \u53c2\u6570<\/h4>\n<\/p>\n
    \u4f7f\u7528-m dis<\/code>\u53c2\u6570\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728\u547d\u4ee4\u884c\u4e2d\u67e5\u770bPython\u6587\u4ef6\u7684\u5b57\u8282\u7801\uff1a<\/p>\n<\/p>\n
    python -m dis example.py<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u8be5\u547d\u4ee4\u5c06\u6253\u5370\u51faexample.py<\/code>\u4e2d\u6240\u6709\u51fd\u6570\u7684\u5b57\u8282\u7801\u3002\u5bf9\u4e8e\u7b80\u5355\u7684\u811a\u672c\uff0c\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u4fbf\u6377\u3002<\/p>\n<\/p>\n
    \u56db\u3001\u5b57\u8282\u7801\u4f18\u5316\u4e0e\u5b9e\u8df5<\/h3>\n<\/p>\n
    \u67e5\u770b\u5b57\u8282\u7801\u4e0d\u4ec5\u6709\u52a9\u4e8e\u7406\u89e3Python\u4ee3\u7801\u7684\u6267\u884c\uff0c\u8fd8\u53ef\u4ee5\u5e2e\u52a9\u4f18\u5316\u4ee3\u7801\u6027\u80fd\u3002<\/p>\n<\/p>\n
    4.1 \u7406\u89e3\u5b57\u8282\u7801\u6307\u4ee4\u7684\u610f\u4e49<\/h4>\n<\/p>\n
    \u901a\u8fc7\u67e5\u770b\u5b57\u8282\u7801\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u8bc6\u522b\u51fa\u53ef\u80fd\u7684\u6027\u80fd\u74f6\u9888\u3002\u4f8b\u5982\uff0c\u9891\u7e41\u7684\u53d8\u91cf\u52a0\u8f7d\u548c\u5b58\u50a8\u53ef\u80fd\u610f\u5473\u7740\u4ee3\u7801\u53ef\u4ee5\u901a\u8fc7\u51cf\u5c11\u53d8\u91cf\u5206\u914d\u6765\u4f18\u5316\u3002<\/p>\n<\/p>\n
    4.2 \u4f7f\u7528\u5b57\u8282\u7801\u8fdb\u884c\u6027\u80fd\u8c03\u4f18<\/h4>\n<\/p>\n
    \u4e86\u89e3\u5b57\u8282\u7801\u540e\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5c1d\u8bd5\u901a\u8fc7\u4ee3\u7801\u91cd\u6784\u6765\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u6307\u4ee4\u3002\u4f8b\u5982\uff0c\u5c06\u91cd\u590d\u7684\u8ba1\u7b97\u7ed3\u679c\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\uff0c\u907f\u514d\u591a\u6b21\u8ba1\u7b97\u3002<\/p>\n<\/p>\n
    \u4e94\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
    \u67e5\u770bPython\u5b57\u8282\u7801\u662f\u7406\u89e3Python\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u7684\u91cd\u8981\u4e00\u6b65\u3002\u901a\u8fc7\u4f7f\u7528dis<\/code>\u6a21\u5757\u3001py_compile<\/code>\u6a21\u5757\u548c\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u8f7b\u677e\u5730\u67e5\u770b\u548c\u5206\u6790\u5b57\u8282\u7801\u3002\u901a\u8fc7\u5bf9\u5b57\u8282\u7801\u7684\u5206\u6790\uff0c\u53ef\u4ee5\u8bc6\u522b\u4ee3\u7801\u4e2d\u7684\u6027\u80fd\u74f6\u9888\uff0c\u5e76\u8fdb\u884c\u4f18\u5316\u3002\u8fd9\u4e9b\u5de5\u5177\u548c\u6280\u672f\u4e0d\u4ec5\u6709\u52a9\u4e8e\u63d0\u9ad8\u4ee3\u7801\u6027\u80fd\uff0c\u8fd8\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u52a0\u6df1\u5bf9Python\u5185\u90e8\u673a\u5236\u7684\u7406\u89e3\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
     \u5982\u4f55\u67e5\u770bPython\u7a0b\u5e8f\u7684\u5b57\u8282\u7801\uff1f<\/strong>
    \u8981\u67e5\u770bPython\u7a0b\u5e8f\u7684\u5b57\u8282\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684dis<\/code>\u6a21\u5757\u3002\u9996\u5148\uff0c\u5bfc\u5165dis<\/code>\u6a21\u5757\uff0c\u5e76\u8c03\u7528dis.dis()<\/code>\u65b9\u6cd5\uff0c\u4f20\u5165\u60a8\u60f3\u8981\u67e5\u770b\u7684\u51fd\u6570\u6216\u4ee3\u7801\u5757\u3002\u8fd9\u5c06\u6253\u5370\u51fa\u76f8\u5e94\u7684\u5b57\u8282\u7801\u6307\u4ee4\uff0c\u5e2e\u52a9\u60a8\u7406\u89e3Python\u5982\u4f55\u6267\u884c\u8fd9\u4e9b\u6307\u4ee4\u3002<\/p>\n
    \u5b57\u8282\u7801\u5728Python\u4e2d\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/strong>
    \u5b57\u8282\u7801\u662fPython\u6e90\u4ee3\u7801\u7f16\u8bd1\u540e\u751f\u6210\u7684\u4e00\u79cd\u4e2d\u95f4\u8868\u793a\u5f62\u5f0f\uff0c\u4e3b\u8981\u7528\u4e8e\u63d0\u9ad8\u6267\u884c\u6548\u7387\u3002\u5b83\u662fPython\u865a\u62df\u673a\uff08PVM\uff09\u53ef\u4ee5\u7406\u89e3\u7684\u4ee3\u7801\uff0c\u5141\u8bb8Python\u5728\u4e0d\u540c\u5e73\u53f0\u4e0a\u4ee5\u76f8\u540c\u7684\u65b9\u5f0f\u8fd0\u884c\u3002\u8fd9\u79cd\u673a\u5236\u4f7f\u5f97Python\u5177\u5907\u4e86\u8de8\u5e73\u53f0\u7684\u4f18\u52bf\u3002<\/p>\n
    \u67e5\u770b\u5b57\u8282\u7801\u65f6\uff0c\u5e38\u89c1\u7684\u6307\u4ee4\u548c\u5b83\u4eec\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f<\/strong>
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