Node.js v0.10.31API手册-简介

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这是一个使用node.js编写的web服务器返回'HelloWorld'的实例：

<code><span class="sh_keyword">var</span> http <span class="sh_symbol">=</span> <span class="sh_function">require</span><span class="sh_symbol">(</span><span class="sh_string">'http'</span><span class="sh_symbol">);</span>http<span class="sh_symbol">.</span><span class="sh_function">createServer</span><span class="sh_symbol">(</span><span class="sh_keyword">function</span> <span class="sh_symbol">(</span>request<span class="sh_symbol">,</span> response<span class="sh_symbol">)</span> <span class="sh_cbracket">{</span>  response<span class="sh_symbol">.</span><span class="sh_function">writeHead</span><span class="sh_symbol">(</span><span class="sh_number">200</span><span class="sh_symbol">,</span> <span class="sh_cbracket">{</span><span class="sh_string">'Content-Type'</span><span class="sh_symbol">:</span> <span class="sh_string">'text/plain'</span><span class="sh_cbracket">}</span><span class="sh_symbol">);</span>  response<span class="sh_symbol">.</span><span class="sh_function">end</span><span class="sh_symbol">(</span><span class="sh_string">'Hello World</span><span class="sh_specialchar">\n</span><span class="sh_string">'</span><span class="sh_symbol">);</span><span class="sh_cbracket">}</span><span class="sh_symbol">).</span><span class="sh_function">listen</span><span class="sh_symbol">(</span><span class="sh_number">8124</span><span class="sh_symbol">);</span>console<span class="sh_symbol">.</span><span class="sh_function">log</span><span class="sh_symbol">(</span><span class="sh_string">'Server running at http://127.0.0.1:8124/'</span><span class="sh_symbol">);</span></code>

执行该服务，将代码写入文件example.js然后执行node程序

<code><span class="sh_symbol">></span> node example<span class="sh_symbol">.</span>jsServer running at http<span class="sh_symbol">:</span><span class="sh_comment">//127.0.0.1:8124/</span></code>

所有本文档的示例都是如此执行。

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