---
title: Date.prototype.setFullYear()
slug: Web/JavaScript/Reference/Global_Objects/Date/setFullYear
translation_of: Web/JavaScript/Reference/Global_Objects/Date/setFullYear
---
<div>{{JSRef("Global_Objects", "Date")}}</div>

<p><code><strong>setFullYear()</strong></code> 方法根据本地时间为一个日期对象设置年份。</p>

<div>{{EmbedInteractiveExample("pages/js/date-setfullyear.html")}}</div>



<h2 id="Syntax" name="Syntax">语法</h2>

<pre class="syntaxbox  language-html" style="margin-bottom: 0px; padding: 1em; border-left-width: 6px; border-left-style: solid; font-family: Consolas, Monaco, 'Andale Mono', monospace; font-size: 14px; text-shadow: none; direction: ltr; white-space: normal; background-color: rgba(212, 221, 228, 0.498039);"><code class="language-html" style="font-family: Consolas, Monaco, 'Andale Mono', monospace; color: inherit; text-shadow: none; direction: ltr;">dateObj.setFullYear(yearValue[, monthValue[, dayValue]])</code></pre>

<h3 id="Parameters" name="Parameters">参数</h3>

<dl>
 <dt><code>yearValue</code></dt>
 <dd>指定年份的整数值，例如1995。</dd>
 <dt><code>monthValue</code></dt>
 <dd>一个0到11之间的整数值，表示从一月到十二月。</dd>
 <dt><code>dayValue</code></dt>
 <dd>一个1到31之间的整数值，表示月份中的第几天。如果你指定了 <code>dayValue</code> 参数，就必须同时指定 <code>monthValue</code>。</dd>
</dl>

<h2 id="Description" name="Description">描述</h2>

<p>如果没有指定 <code>monthValue</code> 和<code>dayValue</code> 参数，将会使用 <code>getMonth</code> 和<code>getDate</code> 方法的返回值。</p>

<p>如果有一个参数超出了合理的范围，<code>setFullYear</code> 方法会更新其他参数值，日期对象的日期值也会被相应更新。 例如，为 <code>monthValue </code>指定 15， 则年份会加1，月份值会为3。</p>

<h2 id="Examples" name="Examples">例子</h2>

<h3 id="Example:_Using_setFullYear" name="Example:_Using_setFullYear">例子：使用<code>setFullYear</code>方法</h3>

<pre class="brush:js  language-js" style="padding: 1em 0px 1em 30px; border-left-width: 6px; border-left-style: solid; font-family: Consolas, Monaco, 'Andale Mono', monospace; font-size: 14px; text-shadow: none; direction: ltr; white-space: normal; background-color: rgba(234, 239, 242, 0.247059);"><code class="language-js" style="font-family: Consolas, Monaco, 'Andale Mono', monospace; color: inherit; text-shadow: none; direction: ltr; white-space: pre;"><span class="keyword token" style="color: #0077aa;">var</span> theBigDay <span class="operator token" style="background: rgba(255, 255, 255, 0.498039); color: #a67f59;">=</span> <span class="keyword token" style="color: #0077aa;">new</span> <span class="class-name token">Date</span><span class="punctuation token" style="color: #999999;">(</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span>
theBigDay<span class="punctuation token" style="color: #999999;">.</span><span class="function token">setFullYear<span class="punctuation token" style="color: #999999;">(</span></span><span class="number token" style="color: #990055;">1997</span><span class="punctuation token" style="color: #999999;">)</span><span class="punctuation token" style="color: #999999;">;</span></code></pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">规范版本</th>
   <th scope="col">规范状态</th>
   <th scope="col">注解</th>
  </tr>
  <tr>
   <td>ECMAScript 1st Edition. Implemented in JavaScript 1.3</td>
   <td>Standard</td>
   <td>Initial definition.</td>
  </tr>
  <tr>
   <td>{{SpecName('ES5.1', '#sec-15.9.5.40', 'Date.prototype.setFullYear')}}</td>
   <td>{{Spec2('ES5.1')}}</td>
   <td> </td>
  </tr>
  <tr>
   <td>{{SpecName('ES6', '#sec-date.prototype.setfullyear', 'Date.prototype.setFullYear')}}</td>
   <td>{{Spec2('ES6')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容性">浏览器兼容性</h2>

<p>{{Compat("javascript.builtins.Date.setFullYear")}}</p>

<h2 id="See_Also" name="See_Also">相关链接</h2>

<ul>
 <li>{{jsxref("Date.prototype.getUTCFullYear()")}}</li>
 <li>{{jsxref("Date.prototype.setUTCFullYear()")}}</li>
 <li>{{jsxref("Date.prototype.setYear()")}}</li>
</ul>