{"id":1136765,"date":"2025-01-08T21:39:49","date_gmt":"2025-01-08T13:39:49","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1136765.html"},"modified":"2025-01-08T21:39:52","modified_gmt":"2025-01-08T13:39:52","slug":"python%e5%a6%82%e4%bd%95%e8%a1%a8%e7%a4%ba2%e7%9a%8432%e6%ac%a1%e6%96%b9%e5%87%8f1","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1136765.html","title":{"rendered":"python\u5982\u4f55\u8868\u793a2\u768432\u6b21\u65b9\u51cf1"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25100803\/b8545d2d-878e-4f52-b613-c6ffb3f630db.webp\" alt=\"python\u5982\u4f55\u8868\u793a2\u768432\u6b21\u65b9\u51cf1\" \/><\/p>\n<p><p> <strong>Python \u8868\u793a 2 \u7684 32 \u6b21\u65b9\u51cf 1 \u7684\u65b9\u6cd5\uff1a<\/strong><\/p>\n<\/p>\n<p><p>\u5728 Python \u4e2d\uff0c\u8868\u793a2\u768432\u6b21\u65b9\u51cf1\u53ef\u4ee5\u901a\u8fc7 <strong>\u4f4d\u8fd0\u7b97\u3001\u5e42\u8fd0\u7b97\u3001\u4f7f\u7528\u5e38\u91cf<\/strong> \u7b49\u591a\u79cd\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u5e42\u8fd0\u7b97\u7b26 <code><\/code>\u3002\u6b64\u5916\uff0cPython \u7684\u6574\u6570\u7c7b\u578b\u652f\u6301\u4efb\u610f\u7cbe\u5ea6\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u62c5\u5fc3\u6ea2\u51fa\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u5e42\u8fd0\u7b97<\/strong>\uff1a<code>232 - 1<\/code><\/li>\n<li><strong>\u4f4d\u8fd0\u7b97<\/strong>\uff1a<code>(1 &lt;&lt; 32) - 1<\/code><\/li>\n<li><strong>\u5e38\u91cf\u8868\u793a<\/strong>\uff1a\u76f4\u63a5\u5199\u51fa\u7ed3\u679c <code>4294967295<\/code><\/li>\n<\/ol>\n<p><p>\u6211\u4eec\u4ee5 <strong>\u5e42\u8fd0\u7b97<\/strong> \u65b9\u6cd5\u4e3a\u4f8b\u8fdb\u884c\u8be6\u7ec6\u63cf\u8ff0\u3002\u4f7f\u7528 <code>2&lt;strong&gt;32 - 1<\/code> \u53ef\u4ee5\u76f4\u63a5\u8ba1\u7b97\u51fa\u7ed3\u679c\uff0c\u56e0\u4e3a <code>&lt;\/strong&gt;<\/code> \u662f Python \u4e2d\u7684\u5e42\u8fd0\u7b97\u7b26\uff0c<code>232<\/code> \u8ba1\u7b97\u7684\u662f 2 \u7684 32 \u6b21\u65b9\uff0c\u7136\u540e\u51cf 1 \u5f97\u5230\u6700\u7ec8\u7ed3\u679c\u3002<\/p>\n<\/p>\n<p><h2>\u4e00\u3001Python \u4e2d\u7684\u6574\u6570\u7c7b\u578b<\/h2>\n<\/p>\n<p><p>Python \u7684\u6574\u6570\u7c7b\u578b\u652f\u6301\u4efb\u610f\u7cbe\u5ea6\uff0c\u8fd9\u610f\u5473\u7740\u4f60\u53ef\u4ee5\u5904\u7406\u975e\u5e38\u5927\u7684\u6574\u6570\u800c\u4e0d\u5fc5\u62c5\u5fc3\u6ea2\u51fa\u3002\u8fd9\u662f Python \u7684\u4e00\u4e2a\u663e\u8457\u4f18\u52bf\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u6d89\u53ca\u5927\u6570\u8ba1\u7b97\u7684\u95ee\u9898\u65f6\u3002<\/p>\n<\/p>\n<p><p>\u5728\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u4e2d\uff0c\u6574\u6570\u7c7b\u578b\u901a\u5e38\u662f\u56fa\u5b9a\u7684\uff0c\u5982 C \u8bed\u8a00\u4e2d\u7684 <code>int<\/code> \u7c7b\u578b\u901a\u5e38\u662f 32 \u4f4d\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u80fd\u8868\u793a\u7684\u6700\u5927\u6574\u6570\u662f <code>231 - 1<\/code>\u3002\u8d85\u8fc7\u8fd9\u4e2a\u8303\u56f4\u4f1a\u5bfc\u81f4\u6ea2\u51fa\u3002\u800c\u5728 Python \u4e2d\uff0c\u4f60\u53ef\u4ee5\u8ba1\u7b97\u4efb\u610f\u5927\u7684\u6574\u6570\u800c\u4e0d\u4f1a\u9047\u5230\u8fd9\u79cd\u9650\u5236\u3002<\/p>\n<\/p>\n<p><h2>\u4e8c\u3001\u5e42\u8fd0\u7b97\u4e0e\u4f4d\u8fd0\u7b97<\/h2>\n<\/p>\n<p><h3>\u5e42\u8fd0\u7b97<\/h3>\n<\/p>\n<p><p>\u5e42\u8fd0\u7b97\u662f\u8ba1\u7b97\u4e00\u4e2a\u6570\u7684\u6307\u6570\u3002Python \u4e2d\u4f7f\u7528 <code>&lt;strong&gt;<\/code> \u8fd0\u7b97\u7b26\u8fdb\u884c\u5e42\u8fd0\u7b97\u3002\u4f8b\u5982\uff0c<code>2&lt;\/strong&gt;32<\/code> \u8ba1\u7b97\u7684\u662f 2 \u7684 32 \u6b21\u65b9\u3002\u5bf9\u4e8e\u6211\u4eec\u7684\u9700\u6c42\uff0c\u8ba1\u7b97 2 \u7684 32 \u6b21\u65b9\u518d\u51cf\u53bb 1:<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">result = 232 - 1<\/p>\n<p>print(result)  # \u8f93\u51fa 4294967295<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4f4d\u8fd0\u7b97<\/h3>\n<\/p>\n<p><p>\u4f4d\u8fd0\u7b97\u662f\u76f4\u63a5\u5bf9\u4e8c\u8fdb\u5236\u4f4d\u8fdb\u884c\u64cd\u4f5c\u7684\u8fd0\u7b97\u3002 <code>(1 &lt;&lt; 32)<\/code> \u8868\u793a\u5c06 1 \u5de6\u79fb 32 \u4f4d\uff0c\u76f8\u5f53\u4e8e 2 \u7684 32 \u6b21\u65b9\uff0c\u7136\u540e\u518d\u51cf\u53bb 1\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">result = (1 &lt;&lt; 32) - 1<\/p>\n<p>print(result)  # \u8f93\u51fa 4294967295<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4f4d\u8fd0\u7b97\u901a\u5e38\u5728\u6027\u80fd\u548c\u5185\u5b58\u4f7f\u7528\u4e0a\u5177\u6709\u4f18\u52bf\uff0c\u56e0\u4e3a\u5b83\u76f4\u63a5\u64cd\u4f5c\u4e8c\u8fdb\u5236\u4f4d\uff0c\u800c\u4e0d\u6d89\u53ca\u9ad8\u5c42\u6b21\u7684\u6570\u5b66\u8ba1\u7b97\u3002<\/p>\n<\/p>\n<p><h2>\u4e09\u3001\u4f7f\u7528\u5e38\u91cf\u8868\u793a<\/h2>\n<\/p>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f60\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u5e38\u91cf\u6765\u8868\u793a 2 \u7684 32 \u6b21\u65b9\u51cf 1\uff0c\u7279\u522b\u662f\u5728\u4f60\u7ecf\u5e38\u9700\u8981\u8fd9\u4e2a\u6570\u503c\u7684\u573a\u5408\u3002\u4f60\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u5e38\u91cf\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">MAX_UINT32 = 4294967295<\/p>\n<p>print(MAX_UINT32)  # \u8f93\u51fa 4294967295<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u66f4\u7b80\u6d01\uff0c\u4e14\u907f\u514d\u4e86\u6bcf\u6b21\u8ba1\u7b97\u7684\u5f00\u9500\u3002<\/p>\n<\/p>\n<p><h2>\u56db\u3001\u5e94\u7528\u573a\u666f\u4e0e\u5b9e\u8df5<\/h2>\n<\/p>\n<p><h3>\u8ba1\u7b97\u673a\u7f51\u7edc<\/h3>\n<\/p>\n<p><p>\u5728\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\uff0cIP \u5730\u5740\u901a\u5e38\u4f7f\u7528 32 \u4f4d\u8868\u793a\u3002IPv4 \u5730\u5740\u7684\u6700\u5927\u503c\u5c31\u662f 2 \u7684 32 \u6b21\u65b9\u51cf 1\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e0a\u8ff0\u65b9\u6cd5\u6765\u8ba1\u7b97\u548c\u9a8c\u8bc1 IP \u5730\u5740\u8303\u56f4\u3002<\/p>\n<\/p>\n<p><h3>\u6570\u636e\u52a0\u5bc6\u4e0e\u89e3\u5bc6<\/h3>\n<\/p>\n<p><p>\u5728\u6570\u636e\u52a0\u5bc6\u548c\u89e3\u5bc6\u8fc7\u7a0b\u4e2d\uff0c\u7ecf\u5e38\u9700\u8981\u5904\u7406\u5927\u6570\u8fd0\u7b97\u3002\u6bd4\u5982\uff0c\u5728 RSA \u52a0\u5bc6\u7b97\u6cd5\u4e2d\uff0c\u9700\u8981\u5904\u7406\u5927\u6570\u7684\u5e42\u8fd0\u7b97\u3002Python \u7684\u5927\u6570\u652f\u6301\u4f7f\u5f97\u5b9e\u73b0\u8fd9\u4e9b\u7b97\u6cd5\u66f4\u52a0\u7b80\u5355\u548c\u76f4\u89c2\u3002<\/p>\n<\/p>\n<p><h3>\u79d1\u5b66\u8ba1\u7b97<\/h3>\n<\/p>\n<p><p>\u5728\u79d1\u5b66\u8ba1\u7b97\u4e2d\uff0c\u6d89\u53ca\u5230\u5929\u6587\u5b66\u3001\u7269\u7406\u5b66\u7b49\u9886\u57df\u7684\u8ba1\u7b97\u65f6\uff0c\u7ecf\u5e38\u9700\u8981\u5904\u7406\u6781\u5927\u6216\u6781\u5c0f\u7684\u6570\u503c\u3002Python \u7684\u4efb\u610f\u7cbe\u5ea6\u6574\u6570\u7c7b\u578b\u548c\u5f3a\u5927\u7684\u6570\u5b66\u8fd0\u7b97\u652f\u6301\uff0c\u4f7f\u5f97\u5b83\u5728\u8fd9\u4e9b\u9886\u57df\u4e5f\u5f97\u5230\u4e86\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u6e38\u620f\u5f00\u53d1<\/h3>\n<\/p>\n<p><p>\u5728\u6e38\u620f\u5f00\u53d1\u4e2d\uff0c\u5904\u7406\u9ad8\u7cbe\u5ea6\u7684\u65f6\u95f4\u6233\u6216\u8ba1\u65f6\u5668\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u5927\u6570\u3002Python \u7684\u5927\u6570\u652f\u6301\u548c\u7b80\u5355\u7684\u8bed\u6cd5\uff0c\u4f7f\u5f97\u5b83\u5728\u6e38\u620f\u5f00\u53d1\u4e2d\u4e5f\u6709\u4e00\u5e2d\u4e4b\u5730\u3002<\/p>\n<\/p>\n<p><h2>\u4e94\u3001\u6027\u80fd\u4f18\u5316\u4e0e\u6ce8\u610f\u4e8b\u9879<\/h2>\n<\/p>\n<p><p>\u5c3d\u7ba1 Python \u652f\u6301\u4efb\u610f\u7cbe\u5ea6\u7684\u6574\u6570\uff0c\u4f46\u5728\u5904\u7406\u975e\u5e38\u5927\u7684\u6570\u503c\u65f6\uff0c\u8ba1\u7b97\u6027\u80fd\u548c\u5185\u5b58\u4f7f\u7528\u4ecd\u7136\u9700\u8981\u6ce8\u610f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f18\u5316\u5efa\u8bae\uff1a<\/p>\n<\/p>\n<ol>\n<li><strong>\u907f\u514d\u91cd\u590d\u8ba1\u7b97<\/strong>\uff1a\u5982\u679c\u9700\u8981\u591a\u6b21\u4f7f\u7528\u540c\u4e00\u4e2a\u5927\u6570\u503c\uff0c\u53ef\u4ee5\u5c06\u5176\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\uff0c\u800c\u4e0d\u662f\u6bcf\u6b21\u91cd\u65b0\u8ba1\u7b97\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4f4d\u8fd0\u7b97<\/strong>\uff1a\u5728\u53ef\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u4f4d\u8fd0\u7b97\u4ee3\u66ff\u5e42\u8fd0\u7b97\u6216\u5176\u4ed6\u9ad8\u5c42\u6b21\u8fd0\u7b97\uff0c\u56e0\u4e3a\u4f4d\u8fd0\u7b97\u901a\u5e38\u66f4\u5feb\u3002<\/li>\n<li><strong>\u5408\u7406\u4f7f\u7528\u6570\u636e\u7c7b\u578b<\/strong>\uff1a\u5bf9\u4e8e\u975e\u5e38\u5927\u7684\u6570\u503c\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u6216\u5e93\uff0c\u5982 NumPy \u63d0\u4f9b\u7684\u591a\u79cd\u9ad8\u6548\u6570\u636e\u7c7b\u578b\u548c\u8fd0\u7b97\u3002<\/li>\n<\/ol>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u7684\u65b9\u6cd5\u548c\u4f18\u5316\u5efa\u8bae\uff0c\u4f60\u53ef\u4ee5\u5728 Python \u4e2d\u9ad8\u6548\u5730\u5904\u7406 2 \u7684 32 \u6b21\u65b9\u51cf 1 \u4ee5\u53ca\u5176\u4ed6\u5927\u6570\u8ba1\u7b97\u95ee\u9898\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>Python\u4e2d\u5982\u4f55\u8ba1\u7b972\u768432\u6b21\u65b9\u51cf1\u7684\u503c\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6307\u6570\u8fd0\u7b97\u7b26<code>**<\/code>\u6765\u8ba1\u7b972\u768432\u6b21\u65b9\uff0c\u7136\u540e\u76f4\u63a5\u51cf\u53bb1\u3002\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">result = 2**32 - 1\nprint(result)\n<\/code><\/pre>\n<p>\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\u540e\uff0c\u60a8\u5c06\u83b7\u5f974294967295\uff0c\u8fd9\u5c31\u662f2\u768432\u6b21\u65b9\u51cf1\u7684\u7ed3\u679c\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\uff0c\u5982\u4f55\u5904\u7406\u5927\u6570\u503c\u8fd0\u7b97\uff1f<\/strong><br \/>Python\u7684\u6574\u6570\u7c7b\u578b\u662f\u52a8\u6001\u7684\uff0c\u610f\u5473\u7740\u5b83\u80fd\u591f\u5904\u7406\u4efb\u610f\u5927\u5c0f\u7684\u6574\u6570\u3002\u56e0\u6b64\uff0c\u5f53\u60a8\u8ba1\u7b97\u50cf2\u768432\u6b21\u65b9\u8fd9\u6837\u7684\u5927\u6570\u65f6\uff0cPython\u4f1a\u81ea\u52a8\u7ba1\u7406\u5185\u5b58\u548c\u8ba1\u7b97\uff0c\u786e\u4fdd\u7ed3\u679c\u7684\u51c6\u786e\u6027\u3002\u4e0d\u9700\u8981\u62c5\u5fc3\u6574\u6570\u6ea2\u51fa\u95ee\u9898\u3002<\/p>\n<p><strong>\u4e3a\u4ec0\u4e48\u8981\u8ba1\u7b972\u768432\u6b21\u65b9\u51cf1\uff1f<\/strong><br \/>\u8ba1\u7b972\u768432\u6b21\u65b9\u51cf1\u901a\u5e38\u7528\u4e8e\u8ba1\u7b97\u673a\u79d1\u5b66\u548c\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e9b\u7279\u5b9a\u573a\u666f\uff0c\u4f8b\u5982\u5728\u7f51\u7edc\u7f16\u7a0b\u4e2d\uff0c\u5b83\u4ee3\u8868\u7740\u65e0\u7b26\u53f732\u4f4d\u6574\u6570\u7684\u6700\u5927\u503c\u3002\u6b64\u5916\uff0c\u8fd9\u4e2a\u503c\u5728\u67d0\u4e9b\u7b97\u6cd5\u4e2d\u4e5f\u7ecf\u5e38\u88ab\u7528\u5230\uff0c\u6bd4\u5982\u54c8\u5e0c\u8868\u7684\u5927\u5c0f\u9650\u5236\u6216\u8005\u4f4d\u8fd0\u7b97\u7684\u5e94\u7528\u3002\u4e86\u89e3\u8fd9\u4e2a\u6570\u5b57\u53ca\u5176\u5e94\u7528\u573a\u666f\u53ef\u4ee5\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u8ba1\u7b97\u673a\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python \u8868\u793a 2 \u7684 32 \u6b21\u65b9\u51cf 1 \u7684\u65b9\u6cd5\uff1a \u5728 Python \u4e2d\uff0c\u8868\u793a2\u768432\u6b21\u65b9\u51cf1\u53ef\u4ee5\u901a\u8fc7 \u4f4d [&hellip;]","protected":false},"author":3,"featured_media":1136777,"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\/1136765"}],"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=1136765"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1136765\/revisions"}],"predecessor-version":[{"id":1136778,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1136765\/revisions\/1136778"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1136777"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1136765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1136765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1136765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}