元组的方法

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          <h3 id="python">《Python 教程》授课笔记附件</h3>
<ul>
<li>讲师: 魏明择</li>
<li>时间: 2019</li>
</ul>
<h3 id="_1">元组的方法</h3>
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<th>方法</th>
<th>说明</th>
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<tbody>
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<td>T.index(v [, begin[, end]])</td>
<td>返回对应元素的索引下标, begin为开始索引，end为结束索引,当 value 不存在时触发ValueError错误</td>
</tr>
<tr>
<td>T.count(x)</td>
<td>返回元组中对应元素的个数</td>
</tr>
</tbody>
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