{"id":134,"date":"2022-05-02T23:19:56","date_gmt":"2022-05-02T15:19:56","guid":{"rendered":"http:\/\/homeyk.com\/?p=134"},"modified":"2024-07-07T19:18:54","modified_gmt":"2024-07-07T11:18:54","slug":"python-%e6%8e%92%e5%ba%8f%e5%9f%ba%e7%a1%80%e7%bb%83%e4%b9%a0","status":"publish","type":"post","link":"http:\/\/homeyk.com\/?p=134","title":{"rendered":"python \u6392\u5e8f\u57fa\u7840\u7ec3\u4e60"},"content":{"rendered":"\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u964d\u5e8f\n#\u63d2\u5165\u6392\u5e8f\ndef list_change(xulie):\n\n    for j in range(1,len(xulie)):  # \u786e\u5b9a\u5faa\u73af\u6b21\u6570\n        print(\"\u5f85\u6bd4\u8f83\u7684\u503c\u662f\uff1a\",xulie[j],\"\u533a\u57df\u8303\u56f4\u662f0~\",j)\n        #for i in range(j-1,-1,-1):  # \u5927\u8303\u56f4\u5185\u7684\u5faa\u73af\uff0c\u7586\n        while j>=1:\n            if xulie[j-1] > xulie[j]:\n                xulie[j-1],xulie[j] = xulie[j],xulie[j-1]\n                j -= 1\n                print(j,\">>\",xulie)\n            else:\n                break\n        print(xulie)\n\n\n# \u5e0c\u5c14\u6392\u5e8f\ndef shell_sort(alist):\n    if not alist:\n        return\n    n=len(alist)\n    gap=n\/\/2\n    while gap>0:\n        for i in range(gap,n):\n            while i-gap>=0:\n                if alist[i]&lt;alist[i-gap]:\n                    alist[i],alist[i-gap]=alist[i-gap],alist[i]\n                    i-=gap\n                else:\n                    break\n            print(gap,\":\",alist)\n        gap\/\/=2\n\n\n# \u5192\u6ce1\u6392\u5e8f\u7684\u601d\u8def\u5728\u4e8e\u628a\u6bcf\u4e00\u6b21\u904d\u5386\u7ed3\u679c\u7684\u6700\u5c0f\u503c\u653e\u5728\u6700\u5de6\u8fb9,\u4e0b\u4e00\u6b21\u904d\u5386\u65f6\uff0c\u7f29\u5c0f\u8303\u56f4\ndef maopao(x):\n    for i in range(len(x)):\n        print(f\"\u7b2c{i}\u6b21\u6392\u5e8f\uff1a\u5f85\u6392\u5e8f\u7684\u533a\u57df\u8303\u56f4\u662f{0}~{len(x)-i-1}\")\n        for j in range(1,len(x)-i):\n            if x[j] &lt; x [j-1]:\n                x[j],x[j-1]= x[j-1],x[j]\n                print(j, \">>\", xulie)\n    print(x)\n\n# \u5192\u6ce1\u6392\u5e8f\u7684\u6539\u8fdb\u7248\u9e21\u5c3e\u9152\u6392\u5e8f\ndef jiweijiu(x):\n\n    count=0\n    for i in range(len(x)):\n        print(f\"\u7b2c{i}\u6b21\u6392\u5e8f\uff1a\u5f85\u6392\u5e8f\u7684\u533a\u57df\u8303\u56f4\u662f{0}~{len(x)-i-1}\")\n        for j in range(i,len(x)-i):\n            print(j, \">>\", xulie)\n            if x[j] &lt; x [j-1]:\n                x[j],x[j-1]= x[j-1],x[j]\n                count +=1\n        for j in range(len(x)-i-1,i,-1):\n            print(j, \"&lt;&lt;\", xulie)\n            if x[j] &lt; x[j - 1]:\n                x[j], x[j - 1] = x[j - 1], x[j]\n                count += 1\n    print(f\"\u603b\u5171\u5b8c\u6210{count}\u6b21\u6392\u5e8f \uff0c\u7ed3\u679c\u4e3a{x}\")\n\n#\u9009\u62e9\u6392\u5e8f\uff0c\u6bcf\u4e00\u6b21\u904d\u5386\u5c06\u5e8f\u5217\u4e2d\u627e\u5230\u6700\u5c0f\u503c\uff0c\u5e76\u653e\u7f6e\u5230\u5e8f\u5217\u524d\u3002\u6307\u9488\u6cd5\ndef choose_sort(x):\n    for i in range(len(x)):\n        print(f\"\u7b2c{i}\u6b21\u6392\u5e8f\uff1a\u5f85\u6392\u5e8f\u7684\u533a\u57df\u8303\u56f4\u662f{i}~{len(x)-1}\")\n        min = x[i]\n        t=i\n        for j in range(i,len(x)):\n            if x[j]&lt;min:\n                t=j\n                min = x[j]\n\n        print(f\"\u7b2c{i}\u6b21\u67e5\u627e\uff1a{x},\u6700\u5c0f\u503c\u4f4d\u7f6e\u5728{t},\u503c\u4e3a{min}\",)\n        x[i],x[t] = x[t],x[i]\n    print(x)\n\n# \u6700\u503c\u6392\u5e8f2,\u9009\u62e9\u6392\u5e8f\u7684\u4e00\u79cd\u3002\u603b\u7ed3\uff0c\u6392\u5e8f\u65b9\u6cd5\u5343\u4e07\u79cd\uff0c\u4f18\u5316\u6548\u7387\uff0c\u6709\u6548\u964d\u4f4e\u65f6\u95f4\u590d\u6742\u5ea6\u662f\u66f4\u9ad8\u9636\u6392\u5e8f\u65b9\u6cd5\u7684\u6240\u8ffd\u6c42\u7684\u3002\u5c06\u9009\u62e9\u5230\u6700\u503c\u653e\u5728\u505a\u5de6\u4fa7\ndef zuizhi(raw):\n    for i in range(len(raw)):\n        print(f\"\u7b2c{i}\u6b21\u6392\u5e8f\uff1a{raw}\")\n        for j in range(i, len(raw)):\n            if raw[i] > raw[j]:\n                raw[i], raw[j] = raw[j], raw[i]\n                print(f\"\u53d1\u751f\u4e00\u6b21{i}\u548c{j}\u7684\u4ea4\u6362\uff0c\u4ea4\u6362\u540e\u7ed3\u679c\u4e3a{raw}\")\n    print(raw)\n<\/pre>\n\n\n\n<p>1\u3001\u5173\u4e8e\u6392\u5e8f\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u672c\u6b21\u7ec3\u4e60\u4ec5\u5728\u7406\u89e3\u8303\u56f4\u5185\uff0c\u9009\u62e9\u4e86\uff0c\u63d2\u5165\u6392\u5e8f\u3001\u9009\u62e9\u6392\u5e8f\u3001\u5192\u6ce1\u6392\u5e8f\u3001\u5e0c\u5c14\u6392\u5e8f\u8fdb\u884c\u7ec3\u4e60\u3002<\/p>\n\n\n\n<p>2\u3001\u9664\u4e86\u5e0c\u5c14\u6392\u5e8f\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u8f83\u4f4eO(nlogn)\uff0c\u5176\u4ed6\u6392\u5e8f\u90fd\u662fO(n^2)<\/p>\n\n\n\n<p>3\u3001\u672c\u6b21\u7ec3\u4e60\u4e2d\u6240\u6709\u6392\u5e8f\u7684\u601d\u8def\u57fa\u672c\u4e00\u81f4\uff0c\u5c31\u662f\u8fdb\u884c\u4e00\u6b21\u5927\u5faa\u73af\uff0c\u6bcf\u4e00\u6b21\u5faa\u73af\uff0c\u90fd\u5b8c\u6210\u4e00\u6b21\u904d\u5386\u5e76\u5b8c\u6210\u76ee\u6807\u4efb\u52a1\uff08\u89c4\u5b9a\u52a8\u4f5c\uff09\u3002\u53ea\u8981\u89c4\u5b9a\u52a8\u4f5c\u4fdd\u6301\u4e00\u81f4\uff0c\u5e76\u9650\u5b9a\u5728\u89c4\u5b9a\u8303\u56f4\u5185\u5904\u7406\uff0c\u5c31\u53ef\u4ee5\u8fbe\u6210\u6392\u5e8f\u6548\u679c\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff0c\u5192\u6ce1\u6392\u5e8f\u7684\u8981\u6c42\u662f\uff0c\u4e00\u6b21\u5faa\u73af\u5c06\u6700\u5927\u6216\u6700\u5c0f\u503c\uff0c\u79fb\u52a8\u5230\u53f3\u4fa7\uff0c\u4e0b\u4e00\u6b21\u5faa\u73af\u65f6\u7f29\u5c0f\u904d\u5386\u8303\u56f4\uff1b\u63d2\u5165\u6392\u5e8f\uff0c\u901a\u8fc7\u4e0d\u65ad\u63d2\u5165\u6570\u503c\uff0c\u4f7f\u5f97\u539f\u6709\u6709\u5e8f\u7684\u8303\u56f4\u4e0d\u65ad\u6269\u5927\uff0c\u76f4\u5230\u6574\u4e2a\u5e8f\u5217\u90fd\u4e3a\u6709\u5e8f\uff1b\u9009\u62e9\u6392\u5e8f\uff0c\u6bcf\u4e00\u6b21\u5faa\u73af\u904d\u5386\u65f6\u90fd\u5c06\u6700\u5c0f\u503c\u901a\u8fc7\u7d22\u5f15\u6216\u8005\u4ea4\u6362\u7684\u65b9\u5f0f\uff0c\u79fb\u52a8\u5230\u6700\u5de6\u4fa7\uff0c\u5e76\u76f8\u5e94\u7f29\u5c0f\u904d\u5386\u8303\u56f4\u3002\u5e0c\u5c14\u6392\u5e8f\u662f\u5229\u7528\u6590\u6ce2\u90a3\u5951\u6570\u5217\u7684\u539f\u7406\uff0c\u4f18\u5316\u4e86\u63d2\u5165\u6392\u5e8f\uff0c\u6700\u540e\u4e00\u4e2a\u6b65\u957fgap=1<\/p>\n\n\n\n<p>4\u3001\u6392\u5e8f\u7684\u8fc7\u7a0b\u8981\u786e\u5b9a\uff0c\u7b26\u5408\u600e\u6837\u6761\u4ef6\u7684\u54ea\u4e24\u4e2a\u503c\u4e4b\u95f4\uff0c\u5982\u4f55\u4ea4\u6362\u4f4d\u7f6e\uff0c\u89c4\u5219\u662f\u4ec0\u4e48\uff0c\u6bcf\u6b21\u5faa\u73af\u904d\u5386\u7684\u8303\u56f4\u662f\u4ec0\u4e48\u3002<\/p>\n\n\n\n<p>5\u3001\u6392\u5e8f\u65b9\u6cd5\u591a\u79cd\u591a\u6837<\/p>\n\n\n\n<p>6\u3001\u5bf9\u4e8epython\u800c\u8a00\uff0csort\u4f3c\u4e4e\u6700\u4e3a\u4fbf\u6377\u3002sort\u65b9\u6cd5\uff0c\u8fd4\u56de\u503c\u4e3aNone\uff0c\u5217\u8868\u672c\u8eab\u88ab\u4fee\u6539\u3002sorted\u51fd\u6570\u662f\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6709\u5e8f\u5217\u8868\u3002sort\u9ed8\u8ba4\u5747\u4e3a\u5347\u5e8f\u3002reversed\u51fd\u6570\u662f\u53cd\u8f6c\u539f\u6709\u5e8f\u5217\uff0c\u5e76\u4e0d\u505a\u6392\u5e8f\u5904\u7406\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">xulie = [9,8,7,16,5,4,3,2,1,0]\nxulie2 = [0, 1, 2, 3, 4, 5, 16, 7, 8, 9]\nprint(xulie.sort(reverse=True),xulie)\nprint(sorted(xulie2,reverse=True),xulie2)\nprint(list(reversed(xulie2)),xulie2)<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"raw\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"true\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">None [16, 9, 8, 7, 5, 4, 3, 2, 1, 0]\n[16, 9, 8, 7, 5, 4, 3, 2, 1, 0] [0, 1, 2, 3, 4, 5, 16, 7, 8, 9]\n[9, 8, 7, 16, 5, 4, 3, 2, 1, 0] [0, 1, 2, 3, 4, 5, 16, 7, 8, 9]\n\nProcess finished with exit code 0<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001\u5173\u4e8e\u6392\u5e8f\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u672c\u6b21\u7ec3\u4e60\u4ec5\u5728\u7406\u89e3\u8303\u56f4\u5185\uff0c\u9009\u62e9\u4e86\uff0c\u63d2\u5165\u6392\u5e8f\u3001\u9009\u62e9\u6392\u5e8f\u3001\u5192\u6ce1\u6392\u5e8f\u3001\u5e0c\u5c14\u6392\u5e8f\u8fdb\u884c\u7ec3\u4e60\u3002 2\u3001\u9664\u4e86\u5e0c\u5c14\u6392\u5e8f\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u8f83\u4f4eO(nlogn)\uff0c\u5176\u4ed6\u6392\u5e8f\u90fd\u662fO(n^2) 3\u3001\u672c\u6b21\u7ec3\u4e60\u4e2d\u6240\u6709\u6392\u5e8f\u7684\u601d\u8def\u57fa\u672c\u4e00\u81f4\uff0c\u5c31\u662f\u8fdb\u884c\u4e00\u6b21\u5927\u5faa\u73af\uff0c\u6bcf\u4e00\u6b21\u5faa\u73af\uff0c\u90fd\u5b8c\u6210\u4e00\u6b21\u904d\u5386\u5e76\u5b8c\u6210\u76ee\u6807\u4efb\u52a1\uff08\u89c4\u5b9a\u52a8\u4f5c\uff09\u3002\u53ea\u8981\u89c4&hellip;<\/p>\n<p> <a class=\"more-link\" href=\"http:\/\/homeyk.com\/?p=134\">\u7ee7\u7eed\u9605\u8bfb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[15,16],"_links":{"self":[{"href":"http:\/\/homeyk.com\/index.php?rest_route=\/wp\/v2\/posts\/134"}],"collection":[{"href":"http:\/\/homeyk.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/homeyk.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/homeyk.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/homeyk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=134"}],"version-history":[{"count":1,"href":"http:\/\/homeyk.com\/index.php?rest_route=\/wp\/v2\/posts\/134\/revisions"}],"predecessor-version":[{"id":388,"href":"http:\/\/homeyk.com\/index.php?rest_route=\/wp\/v2\/posts\/134\/revisions\/388"}],"wp:attachment":[{"href":"http:\/\/homeyk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/homeyk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=134"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/homeyk.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}