size:4;"><code class="language-shell" data-lang="shell"><span style="display:flex;"><span>module helloworld
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span>go 1.19
</span></span><span style="display:flex;"><span>
</span></span><span style="display:flex;"><span>require github.com/spf13/cast v1.4.1 // indirect
</span></span></code></pre></div><ul>
<li>在 <code>go.mod</code> 旁边多了一个 <code>go.sum</code> 文件，内容如下:</li>
</ul>
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