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<!DOCTYPE html>
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Go mod 使用教程 - 搁羽念风
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<h1 class="entry-title">Go mod 使用教程</h1>
<p class="meta"><time datetime="2019-05-08T11:02:09+08:00" pubdate data-updated="true">2019/5/8</time></p>
</header>
<div class="entry-content">
<h2 id="toc_0">介绍&优势</h2>
<p><code>mod</code> 命令是在 go 1.11版本新增的命令,目的是取代<code>GOPATH</code>,提供go官方的包管理解决方案,使用户可以在非<code>$GOPATH/src</code> 目录下随意的构建项目</p>
<ul>
<li>使用mod命令后,将会在 项目目录下生成 一个 go.mod 文件,记录了go项目中引用的模块</li>
<li>mod 功能启用时,使用的模块将存储在 <code>$GOPATH/pkg/mod</code>中,方便其他项目复用</li>
<li>当然也可以选择使用<code>go mod vendor</code> 命令,项目依赖的模块,保存到项目目录下的 vendor目录中</li>
</ul>
<h2 id="toc_1">参数</h2>
<table>
<thead>
<tr>
<th>命令</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>download</td>
<td>下载依赖的模块到本地缓存中</td>
</tr>
<tr>
<td>edit</td>
<td>编辑go.mod</td>
</tr>
<tr>
<td>graph</td>
<td>打印模块依赖图</td>
</tr>
<tr>
<td>init</td>
<td>在当前目录初始化 go.mod文件</td>
</tr>
<tr>
<td>tidy</td>
<td>下载缺少的模块, 移除不用的模块</td>
</tr>
<tr>
<td>vendor</td>
<td>将依赖从本地缓存复制一份到 ./vendor 目录中</td>
</tr>
<tr>
<td>verify</td>
<td>校验依赖是否正确</td>
</tr>
<tr>
<td>why</td>
<td>解释某个模块为什么被依赖</td>
</tr>
</tbody>
</table>
<h2 id="toc_2">开始使用</h2>
<h3 id="toc_3">初始化</h3>
<blockquote>
<p>使用 <code>go mod init {项目名称}</code> 来对项目进行初始化<br/>
<img src="media/15572845291359/15572973310331.jpg" alt=""/></p>
</blockquote>
<h3 id="toc_4">修改依赖为指定版本</h3>
<blockquote>
<p>因为 go.uuid 作者在某个版本修改了api导致原有代码无法使用<br/>
这里使用 go mod edit -replace命令,替换指定的版本<br/>
修改完成后 go.mod 文件详情<br/>
也可以用来替换一些 国内被墙掉的一些模块 如 <code>golang.org/*/*</code><br/>
<img src="media/15572845291359/15573010751405.jpg" alt=""/></p>
</blockquote>
<h3 id="toc_5">内部模块需要变更为相对路径</h3>
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