{"id":3201,"date":"2025-03-25T23:56:26","date_gmt":"2025-03-25T15:56:26","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3201"},"modified":"2025-03-25T23:56:26","modified_gmt":"2025-03-25T15:56:26","slug":"go-%e8%af%ad%e8%a8%80%e9%80%92%e5%bd%92%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/25\/go-%e8%af%ad%e8%a8%80%e9%80%92%e5%bd%92%e5%87%bd%e6%95%b0\/","title":{"rendered":"Go \u8bed\u8a00\u9012\u5f52\u51fd\u6570"},"content":{"rendered":"\n<p>\u9012\u5f52\u51fd\u6570\u662f\u6307\u4e00\u4e2a\u51fd\u6570\u5728\u5176\u5b9a\u4e49\u4e2d\u76f4\u63a5\u6216\u95f4\u63a5\u5730\u8c03\u7528\u81ea\u8eab\u3002\u9012\u5f52\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7b97\u6cd5\u8bbe\u8ba1\u601d\u60f3\uff0c\u53ef\u4ee5\u7b80\u5316\u590d\u6742\u95ee\u9898\u7684\u6c42\u89e3\u8fc7\u7a0b\u3002Go \u8bed\u8a00\u652f\u6301\u9012\u5f52\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4f7f\u7528\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u907f\u514d\u65e0\u9650\u9012\u5f52\u548c\u5806\u6808\u6ea2\u51fa\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1. \u9012\u5f52\u51fd\u6570\u7684\u57fa\u672c\u7ed3\u6784<\/strong><\/h2>\n\n\n\n<p>\u9012\u5f52\u51fd\u6570\u901a\u5e38\u5305\u542b\u4e24\u4e2a\u90e8\u5206\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u51c6\u60c5\u51b5<\/strong>\uff1a\u7528\u4e8e\u7ec8\u6b62\u9012\u5f52\u8c03\u7528\u7684\u6761\u4ef6\u3002\u6ca1\u6709\u57fa\u51c6\u60c5\u51b5\u7684\u9012\u5f52\u4f1a\u5bfc\u81f4\u65e0\u9650\u5faa\u73af\u3002<\/li>\n\n\n\n<li><strong>\u9012\u5f52\u8c03\u7528<\/strong>\uff1a\u901a\u8fc7\u4e0d\u65ad\u8c03\u7528\u81ea\u8eab\u6765\u5206\u89e3\u95ee\u9898\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. \u793a\u4f8b\uff1a\u9636\u4e58\u8ba1\u7b97<\/strong><\/h2>\n\n\n\n<p>\u9636\u4e58\u662f\u4e00\u4e2a\u7ecf\u5178\u7684\u9012\u5f52\u95ee\u9898\uff0c<code>n!<\/code> \u5b9a\u4e49\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>0! = 1<\/code><\/li>\n\n\n\n<li><code>n! = n * (n-1)!<\/code> \uff08\u5f53 n > 0\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2.1 \u9636\u4e58\u9012\u5f52\u5b9e\u73b0<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>package main\n\nimport \"fmt\"\n\n\/\/ \u9012\u5f52\u51fd\u6570\u8ba1\u7b97\u9636\u4e58\nfunc factorial(n int) int {\n    if n == 0 {\n        return 1  \/\/ \u57fa\u51c6\u60c5\u51b5\n    }\n    return n * factorial(n-1)  \/\/ \u9012\u5f52\u8c03\u7528\n}\n\nfunc main() {\n    fmt.Println(factorial(5))  \/\/ \u8f93\u51fa: 120\n}<\/code><\/pre>\n\n\n\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>120<\/code><\/pre>\n\n\n\n<p><strong>\u5206\u6790<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u57fa\u51c6\u60c5\u51b5\u662f <code>n == 0<\/code> \u65f6\u8fd4\u56de <code>1<\/code>\u3002<\/li>\n\n\n\n<li>\u9012\u5f52\u8c03\u7528\u662f <code>n * factorial(n-1)<\/code>\uff0c\u5c06\u95ee\u9898\u9010\u6b65\u5206\u89e3\u4e3a\u66f4\u5c0f\u7684\u5b50\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. \u793a\u4f8b\uff1a\u6590\u6ce2\u90a3\u5951\u6570\u5217<\/strong><\/h2>\n\n\n\n<p>\u6590\u6ce2\u90a3\u5951\u6570\u5217\u4e5f\u662f\u4e00\u4e2a\u7ecf\u5178\u7684\u9012\u5f52\u95ee\u9898\uff0c\u5b9a\u4e49\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>Fib(0) = 0<\/code><\/li>\n\n\n\n<li><code>Fib(1) = 1<\/code><\/li>\n\n\n\n<li><code>Fib(n) = Fib(n-1) + Fib(n-2)<\/code>\uff08n >= 2\uff09<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3.1 \u6590\u6ce2\u90a3\u5951\u6570\u5217\u9012\u5f52\u5b9e\u73b0<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>package main\n\nimport \"fmt\"\n\n\/\/ \u9012\u5f52\u51fd\u6570\u8ba1\u7b97\u6590\u6ce2\u90a3\u5951\u6570\u5217\nfunc fibonacci(n int) int {\n    if n &lt;= 1 {\n        return n  \/\/ \u57fa\u51c6\u60c5\u51b5\n    }\n    return fibonacci(n-1) + fibonacci(n-2)  \/\/ \u9012\u5f52\u8c03\u7528\n}\n\nfunc main() {\n    fmt.Println(fibonacci(5))  \/\/ \u8f93\u51fa: 5\n}<\/code><\/pre>\n\n\n\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>5<\/code><\/pre>\n\n\n\n<p><strong>\u5206\u6790<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u57fa\u51c6\u60c5\u51b5\u662f <code>n == 0<\/code> \u6216 <code>n == 1<\/code> \u65f6\u76f4\u63a5\u8fd4\u56de <code>n<\/code>\u3002<\/li>\n\n\n\n<li>\u9012\u5f52\u8c03\u7528 <code>fibonacci(n-1) + fibonacci(n-2)<\/code>\uff0c\u8ba1\u7b97\u6590\u6ce2\u90a3\u5951\u6570\u5217\u7684\u6bcf\u4e2a\u503c\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. \u9012\u5f52\u7684\u7ec8\u6b62\u6761\u4ef6<\/strong><\/h2>\n\n\n\n<p>\u9012\u5f52\u51fd\u6570\u5fc5\u987b\u5305\u542b\u57fa\u51c6\u60c5\u51b5\uff0c\u4ee5\u786e\u4fdd\u9012\u5f52\u80fd\u591f\u7ec8\u6b62\u3002\u5982\u679c\u6ca1\u6709\u5408\u9002\u7684\u57fa\u51c6\u6761\u4ef6\uff0c\u9012\u5f52\u4f1a\u5bfc\u81f4\u5806\u6808\u6ea2\u51fa\u6216\u65e0\u9650\u5faa\u73af\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>func infiniteRecursion() {\n    infiniteRecursion()  \/\/ \u6ca1\u6709\u7ec8\u6b62\u6761\u4ef6\uff0c\u4f1a\u5bfc\u81f4\u5806\u6808\u6ea2\u51fa\n}<\/code><\/pre>\n\n\n\n<p>\u8fd9\u79cd\u60c5\u51b5\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83\uff0c\u56e0\u6b64\u5728\u8bbe\u8ba1\u9012\u5f52\u65f6\u9700\u8981\u7279\u522b\u6ce8\u610f\u7ec8\u6b62\u6761\u4ef6\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5. \u9012\u5f52\u6027\u80fd\u95ee\u9898<\/strong><\/h2>\n\n\n\n<p>\u9012\u5f52\u51fd\u6570\u901a\u5e38\u4f1a\u6709\u8f83\u9ad8\u7684\u65f6\u95f4\u548c\u7a7a\u95f4\u590d\u6742\u5ea6\uff0c\u5c24\u5176\u662f\u5f53\u9012\u5f52\u8c03\u7528\u8f83\u6df1\u65f6\u3002\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\uff0c\u9012\u5f52\u53ef\u80fd\u4f1a\u975e\u5e38\u4f4e\u6548\uff0c\u5982\u5728\u8ba1\u7b97\u6590\u6ce2\u90a3\u5951\u6570\u5217\u65f6\uff0c\u5b58\u5728\u5927\u91cf\u7684\u91cd\u590d\u8ba1\u7b97\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5.1 \u4f18\u5316\uff1a\u5c3e\u9012\u5f52<\/strong><\/h3>\n\n\n\n<p>\u5c3e\u9012\u5f52\u662f\u6307\u9012\u5f52\u8c03\u7528\u53d1\u751f\u5728\u51fd\u6570\u7684\u6700\u540e\u4e00\u6b65\uff0c\u4e0d\u518d\u8fdb\u884c\u5176\u4ed6\u8ba1\u7b97\u3002Go \u8bed\u8a00\u4e0d\u652f\u6301\u5c3e\u9012\u5f52\u4f18\u5316\uff0c\u4f46\u901a\u8fc7\u6539\u5199\u4ee3\u7801\uff0c\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u91cd\u590d\u8ba1\u7b97\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5.2 \u793a\u4f8b\uff1a\u6539\u5199\u6590\u6ce2\u90a3\u5951\u4e3a\u975e\u9012\u5f52<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>package main\n\nimport \"fmt\"\n\n\/\/ \u975e\u9012\u5f52\u5b9e\u73b0\u6590\u6ce2\u90a3\u5951\u6570\u5217\nfunc fibonacci(n int) int {\n    if n &lt;= 1 {\n        return n\n    }\n    a, b := 0, 1\n    for i := 2; i &lt;= n; i++ {\n        a, b = b, a+b\n    }\n    return b\n}\n\nfunc main() {\n    fmt.Println(fibonacci(5))  \/\/ \u8f93\u51fa: 5\n}<\/code><\/pre>\n\n\n\n<p>\u8fd9\u79cd\u65b9\u5f0f\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a <code>O(n)<\/code>\uff0c\u800c\u9012\u5f52\u65b9\u5f0f\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a <code>O(2^n)<\/code>\uff0c\u6240\u4ee5\u975e\u9012\u5f52\u7684\u5b9e\u73b0\u66f4\u4e3a\u9ad8\u6548\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>6. \u9012\u5f52\u7684\u5e94\u7528<\/strong><\/h2>\n\n\n\n<p>\u9012\u5f52\u5728\u5f88\u591a\u7b97\u6cd5\u4e2d\u90fd\u6709\u5e7f\u6cdb\u5e94\u7528\uff0c\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5206\u6cbb\u7b97\u6cd5<\/strong>\uff1a\u5982\u5f52\u5e76\u6392\u5e8f\u3001\u5feb\u901f\u6392\u5e8f\u3001\u4e8c\u5206\u67e5\u627e\u7b49\u3002<\/li>\n\n\n\n<li><strong>\u6811\u7684\u904d\u5386<\/strong>\uff1a\u5982\u4e8c\u53c9\u6811\u7684\u524d\u5e8f\u3001\u4e2d\u5e8f\u3001\u540e\u5e8f\u904d\u5386\u3002<\/li>\n\n\n\n<li><strong>\u56fe\u7684\u904d\u5386<\/strong>\uff1a\u6df1\u5ea6\u4f18\u5148\u641c\u7d22\uff08DFS\uff09\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>7. \u603b\u7ed3<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9012\u5f52\u51fd\u6570\u662f\u901a\u8fc7\u81ea\u8eab\u8c03\u7528\u81ea\u8eab\u6765\u89e3\u51b3\u95ee\u9898\uff0c\u5177\u6709\u7b80\u5355\u7684\u8868\u8fbe\u65b9\u5f0f\uff0c\u4f46\u9700\u8981\u660e\u786e\u7684\u7ec8\u6b62\u6761\u4ef6\u3002<\/li>\n\n\n\n<li>\u57fa\u51c6\u60c5\u51b5\u662f\u9012\u5f52\u7684\u7ec8\u6b62\u6761\u4ef6\uff0c\u5fc5\u987b\u8981\u6709\u3002<\/li>\n\n\n\n<li>\u9012\u5f52\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\uff0c\u7279\u522b\u662f\u5728\u91cd\u590d\u8ba1\u7b97\u65f6\uff0c\u901a\u5e38\u9700\u8981\u4f18\u5316\u4e3a\u975e\u9012\u5f52\u65b9\u5f0f\uff0c\u6216\u8005\u4f7f\u7528\u8bb0\u5fc6\u5316\u6280\u672f\uff08Memoization\uff09\u6765\u5b58\u50a8\u4e2d\u95f4\u7ed3\u679c\u3002<\/li>\n\n\n\n<li>\u5728\u8bbe\u8ba1\u9012\u5f52\u7b97\u6cd5\u65f6\uff0c\u9700\u8981\u7279\u522b\u6ce8\u610f\u5806\u6808\u7684\u6df1\u5ea6\uff0c\u907f\u514d\u5806\u6808\u6ea2\u51fa\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\ud83d\udd39 \u53c2\u8003\u8d44\u6599<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/golang.org\/doc\/effective_go.html#recursion\">Go \u5b98\u65b9\u6587\u6863 &#8211; \u51fd\u6570\uff08\u9012\u5f52\uff09<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/github.com\/golang\/go\/wiki\/Recursion\">Go Wiki &#8211; Recursion<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u9012\u5f52\u51fd\u6570\u662f\u6307\u4e00\u4e2a\u51fd\u6570\u5728\u5176\u5b9a\u4e49\u4e2d\u76f4\u63a5\u6216\u95f4\u63a5\u5730\u8c03\u7528\u81ea\u8eab\u3002\u9012\u5f52\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7b97\u6cd5\u8bbe\u8ba1\u601d\u60f3\uff0c\u53ef\u4ee5\u7b80\u5316\u590d\u6742\u95ee\u9898\u7684\u6c42\u89e3\u8fc7\u7a0b\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3202,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-3201","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-golang"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=3201"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3201\/revisions"}],"predecessor-version":[{"id":3203,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3201\/revisions\/3203"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3202"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}