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doc: fix code highlight (#28) 3f0b60187c

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jaywcjlove
2022-11-09 03:56:53 +00:00
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commit e640be7d26
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@ -606,26 +606,26 @@
<p>参见：<a href="https://tour.golang.org/concurrency/1">Goroutines</a>, <a href="https://tour.golang.org/concurrency/2">Channels</a></p>
</div></div></div><div class="wrap h3body-not-exist row-span-2"><div class="wrap-header h3wrap"><h3 id="waitgroup"><a aria-hidden="true" tabindex="-1" href="#waitgroup"><span class="icon icon-link"></span></a>WaitGroup</h3><div class="wrap-body">
<!--rehype:wrap-class=row-span-2-->
<pre><code class="language-golang code-highlight"><span class="code-line">package main
</span><span class="code-line">import (
</span><span class="code-line"> "fmt"
</span><span class="code-line"> "sync"
</span><span class="code-line"> "time"
</span><span class="code-line">)
</span><span class="code-line">func w(id int, wg *sync.WaitGroup) {
</span><span class="code-line"> defer wg.Done()
</span><span class="code-line"> fmt.Printf("%d starting\n", id)
</span><span class="code-line"> time.Sleep(time.Second)
</span><span class="code-line"> fmt.Printf("%d done\n", id)
</span><span class="code-line">}
</span><span class="code-line">func main() {
</span><span class="code-line"> var wg sync.WaitGroup
</span><span class="code-line"> for i := 1; i &#x3C;= 5; i++ {
</span><span class="code-line"> wg.Add(1)
</span><span class="code-line"> go w(i, &#x26;wg)
</span><span class="code-line"> }
</span><span class="code-line"> wg.Wait()
</span><span class="code-line">}
<pre class="language-go"><code class="language-go code-highlight"><span class="code-line"><span class="token keyword">package</span> main
</span><span class="code-line"><span class="token keyword">import</span> <span class="token punctuation">(</span>
</span><span class="code-line"> <span class="token string">"fmt"</span>
</span><span class="code-line"> <span class="token string">"sync"</span>
</span><span class="code-line"> <span class="token string">"time"</span>
</span><span class="code-line"><span class="token punctuation">)</span>
</span><span class="code-line"><span class="token keyword">func</span> <span class="token function">w</span><span class="token punctuation">(</span>id <span class="token builtin">int</span><span class="token punctuation">,</span> wg <span class="token operator">*</span>sync<span class="token punctuation">.</span>WaitGroup<span class="token punctuation">)</span> <span class="token punctuation">{</span>
</span><span class="code-line"> <span class="token keyword">defer</span> wg<span class="token punctuation">.</span><span class="token function">Done</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
</span><span class="code-line"> fmt<span class="token punctuation">.</span><span class="token function">Printf</span><span class="token punctuation">(</span><span class="token string">"%d starting\n"</span><span class="token punctuation">,</span> id<span class="token punctuation">)</span>
</span><span class="code-line"> time<span class="token punctuation">.</span><span class="token function">Sleep</span><span class="token punctuation">(</span>time<span class="token punctuation">.</span>Second<span class="token punctuation">)</span>
</span><span class="code-line"> fmt<span class="token punctuation">.</span><span class="token function">Printf</span><span class="token punctuation">(</span><span class="token string">"%d done\n"</span><span class="token punctuation">,</span> id<span class="token punctuation">)</span>
</span><span class="code-line"><span class="token punctuation">}</span>
</span><span class="code-line"><span class="token keyword">func</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
</span><span class="code-line"> <span class="token keyword">var</span> wg sync<span class="token punctuation">.</span>WaitGroup
</span><span class="code-line"> <span class="token keyword">for</span> i <span class="token operator">:=</span> <span class="token number">1</span><span class="token punctuation">;</span> i <span class="token operator">&#x3C;=</span> <span class="token number">5</span><span class="token punctuation">;</span> i<span class="token operator">++</span> <span class="token punctuation">{</span>
</span><span class="code-line"> wg<span class="token punctuation">.</span><span class="token function">Add</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span>
</span><span class="code-line"> <span class="token keyword">go</span> <span class="token function">w</span><span class="token punctuation">(</span>i<span class="token punctuation">,</span> <span class="token operator">&#x26;</span>wg<span class="token punctuation">)</span>
</span><span class="code-line"> <span class="token punctuation">}</span>
</span><span class="code-line"> wg<span class="token punctuation">.</span><span class="token function">Wait</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
</span><span class="code-line"><span class="token punctuation">}</span>
</span></code></pre>
<p>参见：<a href="https://golang.org/pkg/sync/#WaitGroup">WaitGroup</a></p>
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="closing-channels"><a aria-hidden="true" tabindex="-1" href="#closing-channels"><span class="icon icon-link"></span></a>Closing channels</h3><div class="wrap-body">