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设置PORT端口报错 -
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<h1>设置PORT端口报错</h1>
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<span class="date">2017/11/20</span>
<span>posted in </span>
<span class="posted-in"><a href='%E7%AC%AC%E4%B8%80%E5%91%A8.html'>第一周</a></span>
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<p>在跑lesson5的时候，有部分同学会遇到以下错误，这是由于不同系统，所执行的命令代码有所差异。<br/>
<img src="media/15111411785245/15111413386362.jpg" alt=""/></p>
<h2 id="toc_0">MAC/linux环境：</h2>
<pre><code>$ PORT=8081 npm start
</code></pre>
<p>使用上面命令每次都需要重新设置</p>
<p>如果想设置一次永久生效，使用下面的命令。</p>
<pre><code>$ export PORT=8081
</code></pre>
<pre><code>$ npm start
</code></pre>
<h2 id="toc_1">Window系统环境，按照顺序这样进行：</h2>
<pre><code>set PORT=8081
</code></pre>
<pre><code>npm start
</code></pre>
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