{"id":2127,"date":"2025-08-30T20:36:01","date_gmt":"2025-08-30T12:36:01","guid":{"rendered":"https:\/\/www.fanyamin.com\/wordpress\/?p=2127"},"modified":"2025-08-30T20:36:01","modified_gmt":"2025-08-30T12:36:01","slug":"day-1-%e7%8e%af%e5%a2%83%e5%87%86%e5%a4%87%e4%b8%8e%e7%ac%ac%e4%b8%80%e4%b8%aa-go-%e7%a8%8b%e5%ba%8f","status":"publish","type":"post","link":"https:\/\/www.fanyamin.com\/wordpress\/?p=2127","title":{"rendered":"day 1: \u73af\u5883\u51c6\u5907\u4e0e\u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f"},"content":{"rendered":"<h1>\u7b2c\u4e00\u5929\uff1a\u73af\u5883\u51c6\u5907\u4e0e\u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f<\/h1>\n<h2>\u5b66\u4e60\u76ee\u6807<\/h2>\n<ul>\n<li>\u642d\u5efa Go \u5f00\u53d1\u73af\u5883<\/li>\n<li>\u719f\u6089 <code>go mod<\/code>\u3001<code>go run<\/code>\u3001<code>go build<\/code><\/li>\n<li>\u7f16\u5199\u5e76\u8fd0\u884c\u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f<\/li>\n<li>\u901a\u8fc7 LeetCode \u7b80\u5355\u9898\u4f53\u9a8c Go \u8bed\u8a00\u8bed\u6cd5<\/li>\n<li>\u601d\u8003\u4e0e\u670d\u52a1\u5f00\u53d1\u7684\u5173\u8054<\/li>\n<\/ul>\n<hr \/>\n<h2>1. \u73af\u5883\u642d\u5efa<\/h2>\n<h3>\u5b89\u88c5 Go<\/h3>\n<ol>\n<li>\u8bbf\u95ee <a href=\"https:\/\/go.dev\/dl\/\">Go \u5b98\u65b9\u4e0b\u8f7d\u9875\u9762<\/a>\u3002<\/li>\n<li>\u9009\u62e9\u5bf9\u5e94\u5e73\u53f0\u7684\u5b89\u88c5\u5305 (Windows\u3001macOS\u3001Linux)\u3002<\/li>\n<li>\n<p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u9a8c\u8bc1\u7248\u672c\uff1a<\/p>\n<pre><code class=\"language-bash\">go version<\/code><\/pre>\n<p>\u8f93\u51fa\u7c7b\u4f3c\uff1a<\/p>\n<pre><code>go version go1.22.2 darwin\/amd64<\/code><\/pre>\n<\/li>\n<\/ol>\n<h3>\u914d\u7f6e\u5de5\u4f5c\u533a<\/h3>\n<p>\u63a8\u8350\u4f7f\u7528 <strong>Go Modules<\/strong>\uff08Go 1.13+ \u9ed8\u8ba4\u652f\u6301\uff09\u3002<br \/>\n\u68c0\u67e5\u662f\u5426\u542f\u7528\uff1a<\/p>\n<pre><code class=\"language-bash\">go env GOMOD<\/code><\/pre>\n<p>\u5982\u679c\u8f93\u51fa\u4e3a\u7a7a\uff0c\u53ef\u4ee5\u5728\u9879\u76ee\u76ee\u5f55\u6267\u884c\uff1a<\/p>\n<pre><code class=\"language-bash\">go mod init myservice<\/code><\/pre>\n<h3>IDE \u9009\u62e9<\/h3>\n<p>\u63a8\u8350\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li><strong>VS Code<\/strong> + Go \u63d2\u4ef6<\/li>\n<li>\u6216 <strong>Goland<\/strong> (\u4ed8\u8d39\uff0c\u4f46\u5bf9 Go \u652f\u6301\u5f88\u5b8c\u5584)<\/li>\n<\/ul>\n<hr \/>\n<h2>2. \u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f\uff1aHello Service<\/h2>\n<p>\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55\uff1a<\/p>\n<pre><code class=\"language-bash\">mkdir day01-hello\ncd day01-hello\ngo mod init day01-hello<\/code><\/pre>\n<p>\u65b0\u5efa <code>main.go<\/code>\uff1a<\/p>\n<pre><code class=\"language-go\">package main\n\nimport &quot;fmt&quot;\n\nfunc main() {\n    fmt.Println(&quot;Hello, Go Service World!&quot;)\n}<\/code><\/pre>\n<p>\u8fd0\u884c\uff1a<\/p>\n<pre><code class=\"language-bash\">go run main.go<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre><code>Hello, Go Service World!<\/code><\/pre>\n<p>\u6784\u5efa\u4e8c\u8fdb\u5236\uff1a<\/p>\n<pre><code class=\"language-bash\">go build -o hello\n.\/hello<\/code><\/pre>\n<hr \/>\n<h2>3. \u7b2c\u4e00\u4e2a LeetCode \u4f8b\u5b50\uff1a\u4e24\u6570\u4e4b\u548c<\/h2>\n<p>\u5fae\u670d\u52a1\u5f00\u53d1\u9700\u8981\u826f\u597d\u7684\u7b97\u6cd5\u548c\u6570\u636e\u7ed3\u6784\u57fa\u7840\uff0c\u6211\u4eec\u4ece\u6700\u7ecf\u5178\u7684 <a href=\"https:\/\/leetcode.cn\/problems\/two-sum\/\">LeetCode #1 \u4e24\u6570\u4e4b\u548c<\/a> \u5f00\u59cb\u3002<\/p>\n<p><strong>\u9898\u76ee<\/strong>\uff1a<br \/>\n\u7ed9\u5b9a\u4e00\u4e2a\u6574\u6570\u6570\u7ec4 <code>nums<\/code> \u548c\u4e00\u4e2a\u76ee\u6807\u503c <code>target<\/code>\uff0c\u627e\u51fa\u6570\u7ec4\u4e2d\u548c\u4e3a\u76ee\u6807\u503c\u7684\u4e24\u4e2a\u6570\u7684\u4e0b\u6807\u3002<\/p>\n<h3>Go \u89e3\u6cd5<\/h3>\n<p><code>two_sum.go<\/code>\uff1a<\/p>\n<pre><code class=\"language-go\">package main\n\nimport &quot;fmt&quot;\n\nfunc twoSum(nums []int, target int) []int {\n    m := make(map[int]int)\n    for i, num := range nums {\n        if j, ok := m[target-num]; ok {\n            return []int{j, i}\n        }\n        m[num] = i\n    }\n    return nil\n}\n\nfunc main() {\n    nums := []int{2, 7, 11, 15}\n    target := 9\n    result := twoSum(nums, target)\n    fmt.Println(&quot;\u8f93\u5165:&quot;, nums, &quot;\u76ee\u6807:&quot;, target)\n    fmt.Println(&quot;\u7ed3\u679c:&quot;, result)\n}<\/code><\/pre>\n<p>\u8fd0\u884c\uff1a<\/p>\n<pre><code class=\"language-bash\">go run two_sum.go<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre><code>\u8f93\u5165: [2 7 11 15] \u76ee\u6807: 9\n\u7ed3\u679c: [0 1]<\/code><\/pre>\n<hr \/>\n<h2>4. \u4e0e\u670d\u52a1\u5f00\u53d1\u7684\u8054\u7cfb<\/h2>\n<p>\u4e3a\u4ec0\u4e48\u4ece LeetCode \u5f00\u59cb\uff1f\u56e0\u4e3a\uff1a<\/p>\n<ul>\n<li><strong>Map \u4f7f\u7528<\/strong>\uff1aGo \u7684 <code>map<\/code> \u662f\u9ad8\u6027\u80fd\u54c8\u5e0c\u8868\uff0c\u5e7f\u6cdb\u7528\u4e8e\u7f13\u5b58\u3001\u7d22\u5f15\u3001\u5b58\u50a8\u7528\u6237\u4f1a\u8bdd\u7b49\u573a\u666f\u3002<\/li>\n<li><strong>\u9519\u8bef\u5904\u7406<\/strong>\uff1a\u8fd4\u56de <code>nil<\/code> \u662f Go \u5e38\u89c1\u6a21\u5f0f\uff0c\u7c7b\u4f3c\u4e8e\u5728\u5fae\u670d\u52a1\u4e2d\u8fd4\u56de\u9519\u8bef\u6216\u7a7a\u7ed3\u679c\u3002<\/li>\n<li><strong>\u6027\u80fd<\/strong>\uff1a\u54c8\u5e0c\u8868\u5728\u9ad8\u5e76\u53d1\u670d\u52a1\u4e2d\u662f\u5e38\u7528\u7684\u4f18\u5316\u5de5\u5177\u3002<\/li>\n<\/ul>\n<p>\u672a\u6765\u7684\u5fae\u670d\u52a1\u9879\u76ee\u91cc\uff0c\u4f60\u4f1a\u7528 <code>map<\/code> \u6765\u7ba1\u7406\u7528\u6237\u4efb\u52a1\u3001\u7f13\u5b58\u914d\u7f6e\u3001\u7ef4\u62a4\u8fde\u63a5\u72b6\u6001\u7b49\u3002\u4eca\u5929\u7684\u4f8b\u5b50\u5c31\u662f\u4e00\u4e2a\u6700\u5c0f\u5316\u7684\u6f14\u7ec3\u3002<\/p>\n<hr \/>\n<h2>5. \u4eca\u65e5\u5c0f\u7ed3<\/h2>\n<p>\u4eca\u5929\u6211\u4eec\u5b8c\u6210\u4e86\uff1a<\/p>\n<ol>\n<li>\u5b89\u88c5 Go \u73af\u5883<\/li>\n<li>\u7f16\u5199\u5e76\u8fd0\u884c\u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f<\/li>\n<li>\u89e3\u51b3\u4e86 LeetCode \u7684 \u201c\u4e24\u6570\u4e4b\u548c\u201d \u95ee\u9898<\/li>\n<li>\u521d\u6b65\u7406\u89e3\u4e86 <code>map<\/code> \u7684\u4f7f\u7528\u53ca\u5176\u4e0e\u5fae\u670d\u52a1\u7684\u5173\u7cfb<\/li>\n<\/ol>\n<hr \/>\n<h2>6. \u4f5c\u4e1a<\/h2>\n<ol>\n<li>\u4fee\u6539\u7a0b\u5e8f\uff0c\u5c1d\u8bd5\u4e0d\u540c\u8f93\u5165\uff0c\u89c2\u5bdf\u7ed3\u679c\u3002<\/li>\n<li>\u5728 <code>main<\/code> \u4e2d\u52a0\u4e00\u4e2a\u9519\u8bef\u68c0\u67e5\u903b\u8f91\uff1a\u5f53\u7ed3\u679c\u4e3a <code>nil<\/code> \u65f6\u8f93\u51fa\u63d0\u793a\u4fe1\u606f\u3002<\/li>\n<li>\u601d\u8003\uff1a\u5982\u679c\u8fd9\u662f\u4e00\u4e2a\u5fae\u670d\u52a1\u63a5\u53e3\uff0c\u5982\u4f55\u628a\u7ed3\u679c\u901a\u8fc7 JSON \u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff1f<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u7b2c\u4e00\u5929\uff1a\u73af\u5883\u51c6\u5907\u4e0e\u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f \u5b66\u4e60\u76ee\u6807 \u642d\u5efa Go \u5f00\u53d1\u73af\u5883 \u719f\u6089 go mod\u3001go run\u3001go build \u7f16\u5199\u5e76\u8fd0\u884c\u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f \u901a\u8fc7 LeetCode \u7b80\u5355\u9898\u4f53\u9a8c Go \u8bed\u8a00\u8bed\u6cd5 \u601d\u8003\u4e0e\u670d\u52a1\u5f00\u53d1\u7684\u5173\u8054 1. \u73af\u5883\u642d\u5efa \u5b89\u88c5 Go \u8bbf\u95ee Go \u5b98\u65b9\u4e0b\u8f7d\u9875\u9762\u3002 \u9009\u62e9\u5bf9\u5e94\u5e73\u53f0\u7684\u5b89\u88c5\u5305 (Windows\u3001macOS\u3001Linux)\u3002 \u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u9a8c\u8bc1\u7248\u672c\uff1a go version \u8f93\u51fa\u7c7b\u4f3c\uff1a go version go1.22.2 darwin\/amd64 \u914d\u7f6e\u5de5\u4f5c\u533a \u63a8\u8350\u4f7f\u7528 Go Modules\uff08Go 1.13+ \u9ed8\u8ba4\u652f\u6301\uff09\u3002 \u68c0\u67e5\u662f\u5426\u542f\u7528\uff1a go env GOMOD \u5982\u679c\u8f93\u51fa\u4e3a\u7a7a\uff0c\u53ef\u4ee5\u5728\u9879\u76ee\u76ee\u5f55\u6267\u884c\uff1a go mod init myservice IDE \u9009\u62e9 [&hellip;] <a class=\"read-more\" href=\"https:\/\/www.fanyamin.com\/wordpress\/?p=2127\" title=\"Permanent Link to: day 1: \u73af\u5883\u51c6\u5907\u4e0e\u7b2c\u4e00\u4e2a Go \u7a0b\u5e8f\">&rarr;Read&nbsp;more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2127","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2127"}],"collection":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2127"}],"version-history":[{"count":1,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2127\/revisions"}],"predecessor-version":[{"id":2128,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2127\/revisions\/2128"}],"wp:attachment":[{"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fanyamin.com\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}