{"id":8727,"date":"2023-05-15T17:45:54","date_gmt":"2023-05-15T09:45:54","guid":{"rendered":"\/?p=8727"},"modified":"2023-05-15T17:45:54","modified_gmt":"2023-05-15T09:45:54","slug":"python%e5%80%bc%e4%bc%a0%e9%80%92%e5%92%8c%e5%bc%95%e7%94%a8%e4%bc%a0%e9%80%92","status":"publish","type":"post","link":"\/?p=8727","title":{"rendered":"Python\u503c\u4f20\u9012\u548c\u5f15\u7528\u4f20\u9012"},"content":{"rendered":"<p>\u51fd\u6570\u53c2\u6570\u7531\u5b9e\u53c2\u4f20\u9012\u7ed9\u5f62\u53c2\u7684\u8fc7\u7a0b\uff0c\u662f\u7531\u53c2\u6570\u4f20\u9012\u673a\u5236\u6765\u63a7\u5236\u7684\u3002\u901a\u8fc7\u5b66\u4e60\u300aPython\u51fd\u6570\u503c\u4f20\u9012\u548c\u5f15\u7528\u4f20\u9012\u300b\u4e00\u8282\u6211\u4eec\u77e5\u9053\uff0c\u6839\u636e\u5b9e\u9645\u53c2\u6570\u7684\u7c7b\u578b\u4e0d\u540c\uff0c\u51fd\u6570\u53c2\u6570\u7684\u4f20\u9012\u65b9\u5f0f\u5206\u4e3a\u503c\u4f20\u9012\u548c\u5f15\u7528\u4f20\u9012\uff08\u53c8\u79f0\u4e3a\u5730\u5740\u4f20\u9012\uff09\uff0c\u672c\u8282\u5c06\u5bf9\u8fd9\u4e24\u79cd\u4f20\u9012\u673a\u5236\u505a\u6df1\u5ea6\u5256\u6790\u3002<\/p>\n<h2>Python\u51fd\u6570\u53c2\u6570\u7684\u503c\u4f20\u9012\u673a\u5236<\/h2>\n<p>\u6240\u8c13\u503c\u4f20\u9012\uff0c\u5b9e\u9645\u4e0a\u5c31\u662f\u5c06\u5b9e\u9645\u53c2\u6570\u503c\u7684\u526f\u672c\uff08\u590d\u5236\u54c1\uff09\u4f20\u5165\u51fd\u6570\uff0c\u800c\u53c2\u6570\u672c\u8eab\u4e0d\u4f1a\u53d7\u5230\u4efb\u4f55\u5f71\u54cd\u3002<\/p>\n<p>\u503c\u4f20\u9012\u7684\u65b9\u5f0f\uff0c\u7c7b\u4f3c\u4e8e\u300a\u897f\u6e38\u8bb0\u300b\u91cc\u7684\u5b59\u609f\u7a7a\uff0c\u5b83\u590d\u5236\u4e00\u4e2a\u5047\u5b59\u609f\u7a7a\uff0c\u5047\u5b59\u609f\u7a7a\u5177\u6709\u7684\u80fd\u529b\u548c\u771f\u5b59\u609f\u7a7a\u76f8\u540c\uff0c\u53ef\u9664\u5996\u6216\u88ab\u780d\u5934\u3002\u4f46\u4e0d\u7ba1\u8fd9\u4e2a\u5047\u5b59\u609f\u7a7a\u9047\u5230\u4ec0\u4e48\u4e8b\uff0c\u771f\u5b59\u609f\u7a7a\u90fd\u4e0d\u4f1a\u53d7\u5230\u4efb\u4f55\u5f71\u54cd\u3002\u4e0e\u6b64\u7c7b\u4f3c\uff0c\u4f20\u5165\u51fd\u6570\u7684\u662f\u5b9e\u9645\u53c2\u6570\u503c\u7684\u590d\u5236\u54c1\uff0c\u4e0d\u7ba1\u5728\u51fd\u6570\u4e2d\u5bf9\u8fd9\u4e2a\u590d\u5236\u54c1\u5982\u4f55\u64cd\u4f5c\uff0c\u5b9e\u9645\u53c2\u6570\u503c\u672c\u8eab\u4e0d\u4f1a\u53d7\u5230\u4efb\u4f55\u5f71\u54cd\u3002<\/p>\n<p>\u4e0b\u9762\u7a0b\u5e8f\u6f14\u793a\u4e86\u51fd\u6570\u53c2\u6570\u8fdb\u884c\u503c\u4f20\u9012\u7684\u6548\u679c\uff1a<\/p>\n<pre><code>def swap(a , b) :\n    # \u4e0b\u9762\u4ee3\u7801\u5b9e\u73b0a\u3001b\u53d8\u91cf\u7684\u503c\u4ea4\u6362\n    a, b = b, a\n    print(&quot;swap\u51fd\u6570\u91cc\uff0ca\u7684\u503c\u662f&quot;, \\\n        a, &quot;\uff1bb\u7684\u503c\u662f&quot;, b)\na = 6\nb = 9\nswap(a , b)\nprint(&quot;\u4ea4\u6362\u7ed3\u675f\u540e\uff0c\u53d8\u91cfa\u7684\u503c\u662f&quot;, \\\n    a , &quot;\uff1b\u53d8\u91cfb\u7684\u503c\u662f&quot;, b)<\/code><\/pre>\n<p>\u8fd0\u884c\u4e0a\u9762\u7a0b\u5e8f\uff0c\u5c06\u770b\u5230\u5982\u4e0b\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<p>swap\u51fd\u6570\u91cc\uff0ca\u7684\u503c\u662f 9 \uff1bb\u7684\u503c\u662f 6<br \/>\n\u4ea4\u6362\u7ed3\u675f\u540e\uff0c\u53d8\u91cfa\u7684\u503c\u662f 6 \uff1b\u53d8\u91cfb\u7684\u503c\u662f 9<\/p>\n<p>\u4ece\u4e0a\u9762\u7684\u8fd0\u884c\u7ed3\u679c\u6765\u770b\uff0c\u5728 swap() \u51fd\u6570\u91cc\uff0ca \u548c b \u7684\u503c\u5206\u522b\u662f 9\u30016\uff0c\u4ea4\u6362\u7ed3\u675f\u540e\uff0c\u53d8\u91cf a \u548c b \u7684\u503c\u4f9d\u7136\u662f 6\u30019\u3002\u4ece\u8fd9\u4e2a\u8fd0\u884c\u7ed3\u679c\u53ef\u4ee5\u770b\u51fa\uff0c\u7a0b\u5e8f\u4e2d\u5b9e\u9645\u5b9a\u4e49\u7684\u53d8\u91cf a \u548c b\uff0c\u5e76\u4e0d\u662f swap() \u51fd\u6570\u91cc\u7684 a \u548c b \u3002<\/p>\n<p>\u6b63\u5982\u524d\u9762\u6240\u8bb2\u7684\uff0cswap() \u51fd\u6570\u91cc\u7684 a \u548c b \u53ea\u662f\u4e3b\u7a0b\u5e8f\u4e2d\u53d8\u91cf a \u548c b \u7684\u590d\u5236\u54c1\u3002\u4e0b\u9762\u901a\u8fc7\u793a\u610f\u56fe\u6765\u8bf4\u660e\u4e0a\u9762\u7a0b\u5e8f\u7684\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n<p>\u4e0a\u9762\u7a0b\u5e8f\u5f00\u59cb\u5b9a\u4e49\u4e86 a\u3001b \u4e24\u4e2a\u5c40\u90e8\u53d8\u91cf\uff0c\u8fd9\u4e24\u4e2a\u53d8\u91cf\u5728\u5185\u5b58\u4e2d\u7684\u5b58\u50a8\u793a\u610f\u56fe\u5982\u56fe 1 \u6240\u793a\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/2-1Z2131J304295.gif\" alt=\"\u4e3b\u6808\u533a\u4e2d a\u3001b \u53d8\u91cf\u5b58\u50a8\u793a\u610f\u56fe\" \/><br \/>\n\u56fe 1 \u4e3b\u6808\u533a\u4e2d a\u3001b \u53d8\u91cf\u5b58\u50a8\u793a\u610f\u56fe<\/p>\n<p>\u5f53\u7a0b\u5e8f\u6267\u884c swap() \u51fd\u6570\u65f6\uff0c\u7cfb\u7edf\u8fdb\u5165 swap() \u51fd\u6570\uff0c\u5e76\u5c06\u4e3b\u7a0b\u5e8f\u4e2d\u7684 a\u3001b \u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u503c\u4f20\u5165 swap() \u51fd\u6570\uff0c\u4f46\u4f20\u5165 swap() \u51fd\u6570\u7684\u53ea\u662f a\u3001b \u7684\u526f\u672c\uff0c\u800c\u4e0d\u662f a\u3001b \u672c\u8eab\u3002\u8fdb\u5165 swap() \u51fd\u6570\u540e\uff0c\u7cfb\u7edf\u4e2d\u4ea7\u751f\u4e86 4 \u4e2a\u53d8\u91cf\uff0c\u8fd9 4 \u4e2a\u53d8\u91cf\u5728\u5185\u5b58\u4e2d\u7684\u5b58\u50a8\u793a\u610f\u56fe\u5982\u56fe 2 \u6240\u793a\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/2-1Z2131J33SX.gif\" alt=\"\u4e3b\u6808\u533a\u7684\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u503c\u4f20\u5165swap()\u51fd\u6570\u540e\u5b58\u50a8\u793a\u610f\u56fe\" \/><br \/>\n\u56fe 2 \u4e3b\u6808\u533a\u7684\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u503c\u4f20\u5165 swap() \u51fd\u6570\u540e\u5b58\u50a8\u793a\u610f\u56fe<\/p>\n<p>\u5f53\u5728\u4e3b\u7a0b\u5e8f\u4e2d\u8c03\u7528 swap() \u51fd\u6570\u65f6\uff0c\u7cfb\u7edf\u5206\u522b\u4e3a\u4e3b\u7a0b\u5e8f\u548c swap() \u51fd\u6570\u5206\u914d\u4e24\u5757\u6808\u533a\uff0c\u7528\u4e8e\u4fdd\u5b58\u5b83\u4eec\u7684\u5c40\u90e8\u53d8\u91cf\u3002\u5c06\u4e3b\u7a0b\u5e8f\u4e2d\u7684 a\u3001b \u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u503c\u4f20\u5165 swap() \u51fd\u6570\uff0c\u5b9e\u9645\u4e0a\u662f\u5728 swap() \u51fd\u6570\u6808\u533a\u4e2d\u91cd\u65b0\u4ea7\u751f\u4e86\u4e24\u4e2a\u53d8\u91cf a\u3001b\uff0c\u5e76\u5c06\u4e3b\u7a0b\u5e8f\u6808\u533a\u4e2d a\u3001b \u53d8\u91cf\u7684\u503c\u5206\u522b\u8d4b\u503c\u7ed9 swap() \u51fd\u6570\u6808\u533a\u4e2d\u7684 a\u3001b \u53c2\u6570\uff08\u5c31\u662f\u5bf9 swap() \u51fd\u6570\u7684 a\u3001b \u4e24\u4e2a\u53d8\u91cf\u8fdb\u884c\u521d\u59cb\u5316\uff09\u3002\u6b64\u65f6\uff0c\u7cfb\u7edf\u5b58\u5728\u4e24\u4e2a a \u53d8\u91cf\u3001\u4e24\u4e2a b \u53d8\u91cf\uff0c\u53ea\u662f\u5b58\u5728\u4e8e\u4e0d\u540c\u7684\u6808\u533a\u4e2d\u800c\u5df1\u3002<\/p>\n<p>\u7a0b\u5e8f\u5728 swap() \u51fd\u6570\u4e2d\u4ea4\u6362 a\u3001b \u4e24\u4e2a\u53d8\u91cf\u7684\u503c\uff0c\u5b9e\u9645\u4e0a\u662f\u5bf9\u56fe 2 \u4e2d\u7070\u8272\u533a\u57df\u7684 a\u3001b \u53d8\u91cf\u8fdb\u884c\u4ea4\u6362\u3002\u4ea4\u6362\u7ed3\u675f\u540e\uff0c\u8f93\u51fa swap() \u51fd\u6570\u4e2d a\u3001b \u53d8\u91cf\u7684\u503c\uff0c\u53ef\u4ee5\u770b\u5230 a \u7684\u503c\u4e3a 9\uff0cb \u7684\u503c\u4e3a 6\uff0c\u6b64\u65f6\u5728\u5185\u5b58\u4e2d\u7684\u5b58\u50a8\u793a\u610f\u56fe\u5982\u56fe 3 \u6240\u793a\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/2-1Z2131J4355M.gif\" alt=\"swap()\u51fd\u6570\u4e2da\u3001b \u4ea4\u6362\u4e4b\u540e\u7684\u5b58\u50a8\u793a\u610f\u56fe\" \/><br \/>\n\u56fe 3 swap() \u51fd\u6570\u4e2d a\u3001b \u4ea4\u6362\u4e4b\u540e\u7684\u5b58\u50a8\u793a\u610f\u56fe<\/p>\n<p>\u5bf9\u6bd4\u56fe 3 \u4e0e\u56fe 1\uff0c\u53ef\u4ee5\u770b\u5230\u4e24\u4e2a\u793a\u610f\u56fe\u4e2d\u4e3b\u7a0b\u5e8f\u6808\u533a\u4e2d a\u3001b \u7684\u503c\u5e76\u672a\u6709\u4efb\u4f55\u6539\u53d8\uff0c\u7a0b\u5e8f\u6539\u53d8\u7684\u53ea\u662f swap() \u51fd\u6570\u6808\u533a\u4e2d a\u3001b \u7684\u503c\u3002\u8fd9\u5c31\u662f\u503c\u4f20\u9012\u7684\u5b9e\u8d28\uff1a\u5f53\u7cfb\u7edf\u5f00\u59cb\u6267\u884c\u51fd\u6570\u65f6\uff0c\u7cfb\u7edf\u5bf9\u5f62\u53c2\u6267\u884c\u521d\u59cb\u5316\uff0c\u5c31\u662f\u628a\u5b9e\u53c2\u53d8\u91cf\u7684\u503c\u8d4b\u7ed9\u51fd\u6570\u7684\u5f62\u53c2\u53d8\u91cf\uff0c\u5728\u51fd\u6570\u4e2d\u64cd\u4f5c\u7684\u5e76\u4e0d\u662f\u5b9e\u9645\u7684\u5b9e\u53c2\u53d8\u91cf\u3002<\/p>\n<h2>Python\u51fd\u6570\u53c2\u6570\u7684\u5f15\u7528\u4f20\u9012<\/h2>\n<p>\u5982\u679c\u5b9e\u9645\u53c2\u6570\u7684\u6570\u636e\u7c7b\u578b\u662f\u53ef\u53d8\u5bf9\u8c61\uff08\u5217\u8868\u3001\u5b57\u5178\uff09\uff0c\u5219\u51fd\u6570\u53c2\u6570\u7684\u4f20\u9012\u65b9\u5f0f\u5c06\u91c7\u7528\u5f15\u7528\u4f20\u9012\u65b9\u5f0f\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5f15\u7528\u4f20\u9012\u65b9\u5f0f\u7684\u5e95\u5c42\u5b9e\u73b0\uff0c\u91c7\u7528\u7684\u4f9d\u7136\u8fd8\u662f\u503c\u4f20\u9012\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u4e0b\u9762\u7a0b\u5e8f\u793a\u8303\u4e86\u5f15\u7528\u4f20\u9012\u53c2\u6570\u7684\u6548\u679c\uff1a<\/p>\n<pre><code>def swap(dw):\n    # \u4e0b\u9762\u4ee3\u7801\u5b9e\u73b0dw\u7684a\u3001b\u4e24\u4e2a\u5143\u7d20\u7684\u503c\u4ea4\u6362\n    dw[&#039;a&#039;], dw[&#039;b&#039;] = dw[&#039;b&#039;], dw[&#039;a&#039;]\n    print(&quot;swap\u51fd\u6570\u91cc\uff0ca\u5143\u7d20\u7684\u503c\u662f&quot;,\\\n        dw[&#039;a&#039;], &quot;\uff1bb\u5143\u7d20\u7684\u503c\u662f&quot;, dw[&#039;b&#039;])\ndw = {&#039;a&#039;: 6, &#039;b&#039;: 9}\nswap(dw)\nprint(&quot;\u4ea4\u6362\u7ed3\u675f\u540e\uff0ca\u5143\u7d20\u7684\u503c\u662f&quot;,\\\n    dw[&#039;a&#039;], &quot;\uff1bb\u5143\u7d20\u7684\u503c\u662f&quot;, dw[&#039;b&#039;])<\/code><\/pre>\n<p>\u8fd0\u884c\u4e0a\u9762\u7a0b\u5e8f\uff0c\u5c06\u770b\u5230\u5982\u4e0b\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<p>swap\u51fd\u6570\u91cc\uff0ca\u5143\u7d20\u7684\u503c\u662f 9 \uff1bb\u5143\u7d20\u7684\u503c\u662f 6<br \/>\n\u4ea4\u6362\u7ed3\u675f\u540e\uff0ca\u5143\u7d20\u7684\u503c\u662f 9 \uff1bb\u5143\u7d20\u7684\u503c\u662f 6<\/p>\n<p>\u4ece\u4e0a\u9762\u7684\u8fd0\u884c\u7ed3\u679c\u6765\u770b\uff0c\u5728 swap() \u51fd\u6570\u91cc\uff0cdw \u5b57\u5178\u7684 a\u3001b \u4e24\u4e2a\u5143\u7d20\u7684\u503c\u88ab\u4ea4\u6362\u6210\u529f\u3002\u4e0d\u4ec5\u5982\u6b64\uff0c\u5f53 swap() \u51fd\u6570\u6267\u884c\u7ed3\u675f\u540e\uff0c\u4e3b\u7a0b\u5e8f\u4e2d dw \u5b57\u5178\u7684 a\u3001b \u4e24\u4e2a\u5143\u7d20\u7684\u503c\u4e5f\u88ab\u4ea4\u6362\u4e86\u3002\u8fd9\u5f88\u5bb9\u6613\u9020\u6210\u4e00\u79cd\u9519\u89c9\uff0c\u5373\u5728\u8c03\u7528 swap() \u51fd\u6570\u65f6\uff0c\u4f20\u5165 swap() \u51fd\u6570\u7684\u5c31\u662f dw \u5b57\u5178\u672c\u8eab\uff0c\u800c\u4e0d\u662f\u5b83\u7684\u590d\u5236\u54c1\u3002\u4f46\u8fd9\u53ea\u662f\u4e00\u79cd\u9519\u89c9\uff0c\u4e0b\u9762\u8fd8\u662f\u7ed3\u5408\u793a\u610f\u56fe\u6765\u8bf4\u660e\u7a0b\u5e8f\u7684\u6267\u884c\u8fc7\u7a0b\u3002<\/p>\n<p>\u7a0b\u5e8f\u5f00\u59cb\u521b\u5efa\u4e86\u4e00\u4e2a\u5b57\u5178\u5bf9\u8c61\uff0c\u5e76\u5b9a\u4e49\u4e86\u4e00\u4e2a dw \u5f15\u7528\u53d8\u91cf\uff08\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u6307\u9488\uff09\u6307\u5411\u5b57\u5178\u5bf9\u8c61\uff0c\u8fd9\u610f\u5473\u7740\u6b64\u65f6\u5185\u5b58\u4e2d\u6709\u4e24\u4e2a\u4e1c\u897f\uff1a\u5bf9\u8c61\u672c\u8eab\u548c\u6307\u5411\u8be5\u5bf9\u8c61\u7684\u5f15\u7528\u53d8\u91cf\u3002\u6b64\u65f6\u5728\u7cfb\u7edf\u5185\u5b58\u4e2d\u7684\u5b58\u50a8\u793a\u610f\u56fe\u5982\u56fe 4 \u6240\u793a\uff1a<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/2-1Z2131J551L5.gif\" alt=\"\u4e3b\u7a0b\u5e8f\u521b\u5efa\u4e86\u5b57\u5178\u5bf9\u8c61\u540e\u5b58\u50a8\u793a\u610f\u56fe\" \/><br \/>\n\u56fe 4 \u4e3b\u7a0b\u5e8f\u521b\u5efa\u4e86\u5b57\u5178\u5bf9\u8c61\u540e\u5b58\u50a8\u793a\u610f\u56fe<\/p>\n<p>\u63a5\u4e0b\u6765\u4e3b\u7a0b\u5e8f\u5f00\u59cb\u8c03\u7528 swap() \u51fd\u6570\uff0c\u5728\u8c03\u7528 swap() \u51fd\u6570\u65f6\uff0cdw \u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165 swap() \u51fd\u6570\uff0c\u8fd9\u91cc\u4f9d\u7136\u91c7\u7528\u503c\u4f20\u9012\u65b9\u5f0f\uff1a\u628a\u4e3b\u7a0b\u5e8f\u4e2d dw \u53d8\u91cf\u7684\u503c\u8d4b\u7ed9 swap() \u51fd\u6570\u7684 dw \u5f62\u53c2\uff0c\u4ece\u800c\u5b8c\u6210 swap() \u51fd\u6570\u7684 dw \u53c2\u6570\u7684\u521d\u59cb\u5316\u3002\u503c\u5f97\u6307\u51fa\u7684\u662f\uff0c\u4e3b\u7a0b\u5e8f\u4e2d\u7684 dw \u662f\u4e00\u4e2a\u5f15\u7528\u53d8\u91cf\uff08\u4e5f\u5c31\u662f\u4e00\u4e2a\u6307\u9488\uff09\uff0c\u5b83\u4fdd\u5b58\u4e86\u5b57\u5178\u5bf9\u8c61\u7684\u5730\u5740\u503c\uff0c\u5f53\u628a dw \u7684\u503c\u8d4b\u7ed9 swap() \u51fd\u6570\u7684 dw \u53c2\u6570\u540e\uff0c\u5c31\u662f\u8ba9 swap() \u51fd\u6570\u7684 dw \u53c2\u6570\u4e5f\u4fdd\u5b58\u8fd9\u4e2a\u5730\u5740\u503c\uff0c\u5373\u4e5f\u4f1a\u5f15\u7528\u5230\u540c\u4e00\u4e2a\u5b57\u5178\u5bf9\u8c61\u3002\u56fe 5 \u663e\u793a\u4e86 dw \u5b57\u5178\u4f20\u5165 swap() \u51fd\u6570\u540e\u7684\u5b58\u50a8\u793a\u610f\u56fe\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/2-1Z2131J63I52.gif\" alt=\"dw\u5b57\u5178\u4f20\u5165swap()\u51fd\u6570\u540e\u5b58\u50a8\u793a\u610f\u56fe\" \/><br \/>\n\u56fe 5 dw \u5b57\u5178\u4f20\u5165 swap() \u51fd\u6570\u540e\u5b58\u50a8\u793a\u610f\u56fe<\/p>\n<p>\u4ece\u56fe 5 \u6765\u770b\uff0c\u8fd9\u79cd\u53c2\u6570\u4f20\u9012\u65b9\u5f0f\u662f\u4e0d\u6298\u4e0d\u6263\u7684\u503c\u4f20\u9012\u65b9\u5f0f\uff0c\u7cfb\u7edf\u4e00\u6837\u590d\u5236\u4e86dw \u7684\u526f\u672c\u4f20\u5165 swap() \u51fd\u6570\u3002\u4f46\u7531\u4e8e dw \u53ea\u662f\u4e00\u4e2a\u5f15\u7528\u53d8\u91cf\uff0c\u56e0\u6b64\u7cfb\u7edf\u590d\u5236\u7684\u662f dw \u53d8\u91cf\uff0c\u5e76\u672a\u590d\u5236\u5b57\u5178\u672c\u8eab\u3002<\/p>\n<p>\u5f53\u7a0b\u5e8f\u5728 swap() \u51fd\u6570\u4e2d\u64cd\u4f5c dw \u53c2\u6570\u65f6\uff0c\u7531\u4e8e dw \u53ea\u662f\u4e00\u4e2a\u5f15\u7528\u53d8\u91cf\uff0c\u6545\u5b9e\u9645\u64cd\u4f5c\u7684\u8fd8\u662f\u5b57\u5178\u5bf9\u8c61\u3002\u6b64\u65f6\uff0c\u4e0d\u7ba1\u662f\u64cd\u4f5c\u4e3b\u7a0b\u5e8f\u4e2d\u7684 dw \u53d8\u91cf\uff0c\u8fd8\u662f\u64cd\u4f5c swap() \u51fd\u6570\u91cc\u7684 dw \u53c2\u6570\uff0c\u5176\u5b9e\u64cd\u4f5c\u7684\u90fd\u662f\u5b83\u4eec\u5171\u540c\u5f15\u7528\u7684\u5b57\u5178\u5bf9\u8c61\uff0c\u5b83\u4eec\u5f15\u7528\u7684\u662f\u540c\u4e00\u4e2a\u5b57\u5178\u5bf9\u8c61\u3002\u56e0\u6b64\uff0c\u5f53\u5728 swap() \u51fd\u6570\u4e2d\u4ea4\u6362 dw \u53c2\u6570\u6240\u5f15\u7528\u5b57\u5178\u5bf9\u8c61\u7684 a\u3001b \u4e24\u4e2a\u5143\u7d20\u7684\u503c\u540e\uff0c\u53ef\u4ee5\u770b\u5230\u5728\u4e3b\u7a0b\u5e8f\u4e2d dw \u53d8\u91cf\u6240\u5f15\u7528\u5b57\u5178\u5bf9\u8c61\u7684 a\u3001b \u4e24\u4e2a\u5143\u7d20\u7684\u503c\u4e5f\u88ab\u4ea4\u6362\u4e86\u3002<\/p>\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u8bc1\u660e\u4e3b\u7a0b\u5e8f\u4e2d\u7684 dw \u548c swap() \u51fd\u6570\u4e2d\u7684 dw \u662f\u4e24\u4e2a\u53d8\u91cf\uff0c\u5728 swap() \u51fd\u6570\u7684\u6700\u540e\u4e00\u884c\u589e\u52a0\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n<p>#\u628adw \u76f4\u63a5\u8d4b\u503c\u4e3aNone\uff0c\u8ba9\u5b83\u4e0d\u518d\u6307\u5411\u4efb\u4f55\u5bf9\u8c61<br \/>\ndw = None<\/p>\n<p>\u8fd0\u884c\u4e0a\u9762\u4ee3\u7801\uff0c\u7ed3\u679c\u662f swap() \u51fd\u6570\u4e2d\u7684 dw \u53d8\u91cf\u4e0d\u518d\u6307\u5411\u4efb\u4f55\u5bf9\u8c61\uff0c\u7a0b\u5e8f\u5176\u4ed6\u5730\u65b9\u6ca1\u6709\u4efb\u4f55\u6539\u53d8\u3002\u4e3b\u7a0b\u5e8f\u8c03\u7528 swap() \u51fd\u6570\u540e\uff0c\u518d\u6b21\u8bbf\u95ee dw \u53d8\u91cf\u7684 a\u3001b \u4e24\u4e2a\u5143\u7d20\uff0c\u4f9d\u7136\u53ef\u4ee5\u8f93\u51fa 9\u30016\u3002\u53ef\u89c1\uff0c\u4e3b\u7a0b\u5e8f\u4e2d\u7684 dw \u53d8\u91cf\u6ca1\u6709\u53d7\u5230\u4efb\u4f55\u5f71\u54cd\u3002\u5b9e\u9645\u4e0a\uff0c\u5f53\u5728 swap() \u51fd\u6570\u4e2d\u589e\u52a0\u201cdw =None\u201d\u4ee3\u7801\u540e\uff0c\u5728\u5185\u5b58\u4e2d\u7684\u5b58\u50a8\u793a\u610f\u56fe\u5982\u56fe 6 \u6240\u793a\u3002<\/p>\n<p><img src=\"https:\/\/lemon-guess.oss-cn-hangzhou.aliyuncs.com\/img\/2-1Z2131JK5157.gif\" alt=\"\u5c06swap()\u51fd\u6570\u4e2d\u7684dw\u8d4b\u503c\u4e3aNone \u540e\u5b58\u50a8\u793a\u610f\u56fe\" \/><br \/>\n\u56fe 6 \u5c06 swap() \u51fd\u6570\u4e2d\u7684 dw \u8d4b\u503c\u4e3a None \u540e\u5b58\u50a8\u793a\u610f\u56fe<\/p>\n<p>\u4ece\u56fe 6 \u6765\u770b\uff0c\u628a swap() \u51fd\u6570\u4e2d\u7684 dw \u8d4b\u503c\u4e3a None \u540e\uff0c\u5728 swap() \u51fd\u6570\u4e2d\u5931\u53bb\u4e86\u5bf9\u5b57\u5178\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u4e0d\u53ef\u518d\u8bbf\u95ee\u8be5\u5b57\u5178\u5bf9\u8c61\u3002\u4f46\u4e3b\u7a0b\u5e8f\u4e2d\u7684 dw \u53d8\u91cf\u4e0d\u53d7\u4efb\u4f55\u5f71\u54cd\uff0c\u4f9d\u7136\u53ef\u4ee5\u5f15\u7528\u8be5\u5b57\u5178\u5bf9\u8c61\uff0c\u6240\u4ee5\u4f9d\u7136\u53ef\u4ee5\u8f93\u51fa\u5b57\u5178\u5bf9\u8c61\u7684 a\u3001b \u5143\u7d20\u7684\u503c\u3002<\/p>\n<p>\u901a\u8fc7\u4e0a\u9762\u4ecb\u7ecd\u53ef\u4ee5\u5f97\u51fa\u5982\u4e0b\u4e24\u4e2a\u7ed3\u8bba\uff1a<\/p>\n<ol>\n<li>\u4e0d\u7ba1\u4ec0\u4e48\u7c7b\u578b\u7684\u53c2\u6570\uff0c\u5728 Python \u51fd\u6570\u4e2d\u5bf9\u53c2\u6570\u76f4\u63a5\u4f7f\u7528\u201c=\u201d\u7b26\u53f7\u8d4b\u503c\u662f\u6ca1\u7528\u7684\uff0c\u76f4\u63a5\u4f7f\u7528\u201c=\u201d\u7b26\u53f7\u8d4b\u503c\u5e76\u4e0d\u80fd\u6539\u53d8\u53c2\u6570\u3002<\/li>\n<li>\u5982\u679c\u9700\u8981\u8ba9\u51fd\u6570\u4fee\u6539\u67d0\u4e9b\u6570\u636e\uff0c\u5219\u53ef\u4ee5\u901a\u8fc7\u628a\u8fd9\u4e9b\u6570\u636e\u5305\u88c5\u6210\u5217\u8868\u3001\u5b57\u5178\u7b49\u53ef\u53d8\u5bf9\u8c61\uff0c\u7136\u540e\u628a\u5217\u8868\u3001\u5b57\u5178\u7b49\u53ef\u53d8\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165\u51fd\u6570\uff0c\u5728\u51fd\u6570\u4e2d\u901a\u8fc7\u5217\u8868\u3001\u5b57\u5178\u7684\u65b9\u6cd5\u4fee\u6539\u5b83\u4eec\uff0c\u8fd9\u6837\u624d\u80fd\u6539\u53d8\u8fd9\u4e9b\u6570\u636e\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u51fd\u6570\u53c2\u6570\u7531\u5b9e\u53c2\u4f20\u9012\u7ed9\u5f62\u53c2\u7684\u8fc7\u7a0b\uff0c\u662f\u7531\u53c2\u6570\u4f20\u9012\u673a\u5236\u6765\u63a7\u5236\u7684\u3002\u901a\u8fc7\u5b66\u4e60\u300aPython\u51fd\u6570\u503c\u4f20\u9012\u548c\u5f15\u7528\u4f20\u9012\u300b\u4e00\u8282\u6211\u4eec\u77e5\u9053\uff0c\u6839\u636e\u5b9e\u9645\u53c2\u6570\u7684\u7c7b\u578b\u4e0d   \u2026 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[34],"tags":[159],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/8727"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8727"}],"version-history":[{"count":1,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/8727\/revisions"}],"predecessor-version":[{"id":8728,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/8727\/revisions\/8728"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8727"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}