{"id":204785,"date":"2025-05-29T14:42:24","date_gmt":"2025-05-29T06:42:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204785\/"},"modified":"2025-05-29T14:42:24","modified_gmt":"2025-05-29T06:42:24","slug":"python-%e7%ac%94%e8%ae%b0-%e6%8a%80%e5%b7%a7-%e8%af%be%e7%a8%8b-%e7%bb%86%e5%be%ae%e5%b7%ae%e5%88%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204785\/","title":{"rendered":"Python \u7b14\u8bb0\/\u6280\u5de7\/\u8bfe\u7a0b\/\u7ec6\u5fae\u5dee\u522b"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Python \u7b14\u8bb0\/\u6280\u5de7\/\u8bfe\u7a0b\/\u7ec6\u5fae\u5dee\u522b<\/h1>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPython \u7b14\u8bb0\/\u6280\u5de7\/\u8bfe\u7a0b\/\u7ec6\u5fae\u5dee\u522b\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241116\/1731736224673832a0d9f50.jpg\" class=\"aligncenter\"><\/p>\n<p>\u6211\u53d1\u8868\u4e86\u4e00\u7bc7 c++ \u6280\u5de7\u6587\u7ae0\uff0c\u6211\u60f3\u5199\u66f4\u591a\u6211\u77e5\u9053\u7684\u6280\u5de7\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e2d\u7684\u5927\u591a\u6570\u90fd\u662f\u7528 python \u548c js \u7f16\u5199\u7684\uff0c\u5c3d\u7ba1\u6211\u5df2\u7ecf\u7528 c++ \u7f16\u5199\u4e86\u5f88\u591a\u4ee3\u7801\uff0c\u4f46\u65e0\u8bba\u5982\u4f55\u5b83\u4eec\u90fd\u5728\u8fd9\u91cc\uff0c\u6211\u5c06\u4ece\u57fa\u672cpython\u8bed\u6cd5\u7684\u7410\u788e\u4e8b\u60c5\u5f00\u59cb\uff0c\u4f46\u6709\u4e00\u4e9b\u521d\u5b66\u8005\u4e0d\u77e5\u9053\u7684\u4e8b\u60c5\uff0c\u6211\u7528\u661f\u53f7\u6807\u8bb0\u4e86\u2b50\ufe0f\uff1a<\/p>\n<ul>\n<li>\u9879\u76ee\u6570\u636e\u7ed3\u6784\u7684\u6709\u5e8f\u96c6\u5408<\/li>\n<li>\u53ef\u4ee5\u6709\u591a\u79cd\u7c7b\u578b<\/li>\n<li>aa = [&#8220;\u82f9\u679c&#8221;, &#8216;d&#8217;, 3, 9.3]<\/li>\n<\/ul>\n<ol>\n<li>a = [1, 2]<\/li>\n<li>a = \u5217\u8868()<\/li>\n<li>a = \u5217\u8868([2, 3])<\/li>\n<li>[0]*5<\/li>\n<li>concat_list = list1 + list2<\/li>\n<\/ol>\n<ul>\n<li>0 &#8230; n-1 \u548c -n &#8230; -1<\/li>\n<\/ul>\n<ul>\n<li>len(\u5217\u88681)<\/li>\n<li>a.append(\u503c)<\/li>\n<li> a.insert(index, value)\uff1a\u5728\u7d22\u5f15\u5904\u63d2\u5165\u503c\u5e76\u5c06\u6240\u6709\u5185\u5bb9\u63a8\u5230\u53f3\u4fa7<\/li>\n<li> a.pop()\uff1a\u8fd4\u56de\u6700\u7ec8\u503c\u5e76\u5c06\u5176\u5220\u9664<\/li>\n<li> a.remove(value)\uff1a\u5982\u679c\u8be5\u503c\u4e0d\u5b58\u5728\uff0c\u60a8\u5c06\u5f97\u5230\u4e00\u4e2a valueerror <\/li>\n<li>a.clear()<\/li>\n<li> a.reverse()\uff1a\u539f\u5730\u53cd\u8f6c<\/li>\n<li> a.sort()\uff1a\u4fee\u6539\u539f\u59cb<\/li>\n<li> b =\u6392\u5e8f\uff08a\uff09\uff1a\u4e0d\u4fee\u6539\u539f\u59cb<\/li>\n<\/ul>\n<p>\u8bbf\u95ee\u5217\u8868\u5b50\u6570\u7ec4\u7684\u7b80\u5355\u65b9\u6cd5<\/p>\n<ul>\n<li> slicedlist = a[1:5]: \u4ece\u7d22\u5f15 1 \u5f00\u59cb\uff0c\u5230\u7d22\u5f15 5 \u505c\u6b62\uff0c\u7d22\u5f15 5 \u88ab\u6392\u9664<\/li>\n<li> slicedlist = a[:3]: \u4ece 0 &#8230; 2<\/li>\n<li> slicedlist = a[1:3]\uff1a\u4ece 1 \u5230 2<\/li>\n<li> slicedlist = a[:]: \u590d\u5236\u6574\u4e2a\u5217\u8868<\/li>\n<li> slicedlist = mylist[::2]\uff1a\u6b65\u8fdb\u7d22\u5f15\uff0c\u6bcf\u9694\u7b2c\u4e8c\u9879\uff0c\u4ece\u7b2c\u4e00\u9879\u5f00\u59cb\uff0c\u57fa\u672c\u4e0a i=0;i&lt;n;i+=2 <\/li>\n<li> slicedlist = mylist[::-1]\uff1a\u53cd\u8f6c\u5217\u8868\u7684\u597d\u65b9\u6cd5<\/li>\n<\/ul>\n<ul>\n<li>a = [1, 2, 3]<\/li>\n<li>b = a<\/li>\n<\/ul>\n<p>\u4fee\u6539\u4e00\u4e2a\u4e5f\u4f1a\u4fee\u6539\u53e6\u4e00\u4e2a\uff0c\u56e0\u4e3a\u4e24\u8005\u90fd\u662f\u76f8\u540c\u7684\u5185\u5b58\u5206\u914d<\/p>\n<p>3\u79cd\u65b9\u5f0f\uff1a<\/p>\n<ol>\n<li>b = a.copy()<\/li>\n<li>b = \u5217\u8868(a)<\/li>\n<li> b = a[:] <\/li>\n<\/ol>\n<p>\u6211\u5c06\u4ece\u4e00\u4e9b\u57fa\u672c\u7684\u5217\u8868\u7406\u89e3\u5f00\u59cb\uff0c\u4f46\u5b83\u4eec\u5f88\u5feb\u5c31\u4f1a\u53d8\u5f97\u4e0d\u90a3\u4e48\u7410\u788e\u3002<\/p>\n<ul>\n<li>values = [x+1 for x in range(10)] -&gt; [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]<\/li>\n<\/ul>\n<pre>values = [word for word in values if len(word) &gt; 1 and word[0] == 'a' and word[-1] == 'y']\n# or, a nicer way is \u2b50\ufe0f\nvalues = [\n    string\n    for string in values\n    if len(string) &gt; 1\n    if string[0] == 'a'\n    if string[-1] == 'y'\n]\n\n<\/pre>\n<p>\u5c55\u5e73\u5217\u8868\u5217\u8868\u6216\u4e8c\u7ef4\u77e9\u9635<br \/> \u5d4c\u5957\u5217\u8868\u7406\u89e3\uff1a\u5c55\u5e73\u77e9\u9635\uff08\u5217\u8868\u5217\u8868\uff09\u2b50\ufe0f<\/p>\n<p>\u793a\u4f8b\uff1a\u77e9\u9635 = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]<\/p>\n<pre>values = [\n    number for row in matrix for number in row\n]\n# first for loop then the next for loop is inside the first and so on\n<\/pre>\n<ul>\n<li>\u5176\u4ed6\u5217\u8868\u63a8\u5bfc\u5f0f\uff1a <\/li>\n<\/ul>\n<pre>values = [\n    \"even\" if x % 2 == 0 \n    else \"odd\" \n    for x in range(10)\n]\n<\/pre>\n<ul>\n<li>\n<p>\u6b64\u8bed\u6cd5 -&gt;<br \/> &#8220;even&#8221; if x % 2 == 0 else &#8220;odd&#8221; \u5728python\u4e2d\u5f88\u591a\u5730\u65b9\u90fd\u662f\u6709\u6548\u7684\uff0c\u4f60\u4e5f\u53ef\u4ee5\u628a\u5b83\u653e\u5728\u53d8\u91cf\u4e2d\uff0c\u8fd9\u57fa\u672c\u4e0a\u662f\u4e00\u4e2a\u4e09\u5143\u8fd0\u7b97\u7b26\uff0c\u4f46\u66f4\u8be6\u7ec6<\/p>\n<\/li>\n<li>\n<p>\u2b50\ufe0f \u4e3a\u4e86\u7406\u89e3\u4efb\u4f55\u5217\u8868\u7406\u89e3\uff0c\u8bf7\u59cb\u7ec8\u67e5\u770b\u8868\u8fbe\u5f0f\u7684\u5de6\u4fa7\u548c\u53f3\u4fa7\uff0c\u4efb\u4f55\u5d4c\u5957\u5faa\u73af\u90fd\u662f\u4ece\u5de6\u5230\u53f3\uff0c\u5f53 if else \u4f4d\u4e8e for \u5faa\u73af\u7684\u5de6\u4fa7\u65f6\uff0c\u6211\u4eec\u68c0\u67e5\u4ec0\u4e48\u503c\u6211\u4eec\u662f\u5426\u8981\u6839\u636e if else \u6761\u4ef6\u63d2\u5165\uff0c\u800c\u5f53 for \u5faa\u73af\u4f4d\u4e8e\u53f3\u4fa7\u65f6\uff0c\u6211\u4eec\u5c1d\u8bd5\u4ece\u5217\u8868\u4e2d\u8fc7\u6ee4<\/p>\n<\/li>\n<li>\n<p>\u4f8b\u5982\u521b\u5efa 5x5x5 \u5217\u8868\uff1a\u2b50\ufe0f<\/p>\n<\/li>\n<\/ul>\n<pre>values = [[[num+1 for num in range(5)] for _ in range(5)] for _ in range(5)]\n<\/pre>\n<p>\u2b50\ufe0f \u5bfb\u627e\u6700\u5916\u9762\u7684for\u5faa\u73af\uff0c\u5de6\u8fb9\u7684\u5185\u5bb9\u90fd\u4f1a\u88ab\u6dfb\u52a0\u5230values[]\u6570\u7ec4\u4e2d\uff0c\u8fd9\u4e2a\u8bed\u6cd5\u7684\u542b\u4e49\uff1afor _ in range(5)\u5c31\u662f\u200b\u200b\u6211\u60f3\u505a\u7684\u4e8b\u60c5\u8fd9\u4e2afor\u5faa\u73af\u7684\u5de6\u8fb95\u6b21\uff08\u56e0\u4e3a\u6211\u4e0d\u5173\u5fc3\u6bcf\u6b21\u8fed\u4ee3\u65f6\u8fed\u4ee3\u5668\u53d8\u91cf\u7684\u503c\uff09<\/p>\n<ul>\n<li>\u63a8\u5bfc\u5f0f\u4e2d\u7684\u51fd\u6570\uff1a \u503c = [x**2 \u8868\u793a\u503c\u4e2d\u7684 x\uff0c\u5982\u679c\u6709\u6548(x)] <\/li>\n<\/ul>\n<p>\u5982\u679c\u6211\u4eec\u6709pair = [(&#8220;a&#8221;, 1), (&#8220;b&#8221;, 2)]\uff1a\u5bf9\u6216\u5143\u7ec4\u7684\u5217\u8868<\/p>\n<p>-&gt; my_dict = {k:v for k, v inpair}\uff1a\u503c\u89e3\u5305\uff0c\u8981\u4f7f\u5176\u5de5\u4f5c\uff0c\u6210\u5bf9\u7684\u6bcf\u4e2a\u201c\u5bf9\u201d\u5fc5\u987b\u6070\u597d\u6709 2 \u4e2a\u5b9e\u4f53<\/p>\n<p>\u8ba9 nums = [1, 2, 3, 1, 3, 2, 4, 2, 1, 3]<\/p>\n<p>unique_nums = {x for x in nums}\uff1apython \u4f1a\u77e5\u9053\u8fd9\u5e94\u8be5\u662f\u4e00\u4e2a\u96c6\u5408\uff0c\u56e0\u4e3a\u4f60\u6ca1\u6709\u4efb\u4f55\u952e<\/p>\n<p>\u4e00\u65e6\u6709\u65f6\u95f4\u6211\u5c31\u4f1a\u5199\u8fd9\u7bc7\u6587\u7ae0\uff0c\u4f46\u4f60\u4ecd\u7136\u53ef\u4ee5\u5728\u8fd9\u91cc\u67e5\u770b\u5b83\u4eec\uff1aadvancedpythonconcepts \u8fd9\u662f\u6211\u7684 git \u5b58\u50a8\u5e93\uff0c\u5f53\u6211\u7b2c\u4e00\u6b21\u5b66\u4e60 python \u6982\u5ff5\u65f6\uff0c\u6211\u5728\u5176\u4e2d\u8bb0\u5f55\u4e86\u5b83\u4eec\u3002\u4e00\u65e6\u6211\u6709\u65f6\u95f4\uff0c\u6211\u4f1a\u6839\u200b\u200b\u636e\u8fd9\u4e2a\u4ed3\u5e93\u5199\u8fd9\u7bc7\u6587\u7ae0&#8230;&#8230;<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aPython \u7b14\u8bb0\/\u6280\u5de7\/\u8bfe\u7a0b\/\u7ec6\u5fae\u5dee\u522b\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n<p>      \u7248\u672c\u58f0\u660e \u672c\u6587\u8f6c\u8f7d\u4e8e\uff1adev.to \u5982\u6709\u4fb5\u72af\uff0c\u8bf7\u8054\u7cfb\u5220\u9664<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python \u7b14\u8bb0\/\u6280\u5de7\/\u8bfe\u7a0b\/&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204785","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204785","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204785"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204785\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}