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---
title: 100 Continue
slug: Web/HTTP/Status/100
tags:
  - HTTP
  - 信息型
  - 状态码
translation_of: Web/HTTP/Status/100
---
<div>{{HTTPSidebar}}</div>

<p>HTTP <strong><code>100 Continue</code></strong> 信息型状态响应码表示目前为止一切正常, 客户端应该继续请求, 如果已完成请求则忽略.</p>

<p>为了让服务器检查请求的首部, 客户端必须在发送请求实体前, 在初始化请求中发送 <code>Expect: 100-continue</code> 首部并接收 <code>100 Continue</code> 响应状态码.</p>

<h2 id="状态码">状态码</h2>

<pre class="syntaxbox">100 Continue</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">标题</th>
  </tr>
  <tr>
   <td>{{RFC("7231", "100 Continue" , "6.2.1")}}</td>
   <td>Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>

<p>{{Compat("http/status.json", "100 Continue")}}</p>

<h2 id="另见">另见</h2>

<ul>
 <li>{{HTTPHeader("Expect")}}</li>
 <li>{{HTTPStatus(417)}}</li>
</ul>