Python运算符优先级

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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="python_1">Python运算符优先级</h3>
<table>
<thead>
<tr>
<th>运算符</th>
<th>描述</th>
</tr>
</thead>
<tbody>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>(), [], {key: value}, {}</td>
<td>元组表达式、列表表达式、字典表达式、集合表达式</td>
</tr>
<tr>
<td>x[index], x[index:index],<br> x(arguments...), x.attribute</td>
<td>索引，切片，<br>函数调用，属性引用</td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>**</td>
<td>指数 (最高优先级)</td>
</tr>
<tr>
<td>~, +, -</td>
<td>按位翻转, 正号,负号</td>
</tr>
<tr>
<td>*, /, %, //</td>
<td>乘，除，取模和地板除</td>
</tr>
<tr>
<td>+, -</td>
<td>加法, 减法</td>
</tr>
<tr>
<td>&gt;&gt;, &lt;&lt;</td>
<td>右移, 左移运算符</td>
</tr>
<tr>
<td>&amp;</td>
<td>位与(AND)</td>
</tr>
<tr>
<td>^</td>
<td>位异或(XOR)</td>
</tr>
<tr>
<td>|</td>
<td>位或(OR)</td>
</tr>
<tr>
<td>&lt;=, &lt;, &gt;, &gt;=, ==, !=,<br>is, is not, in, not in</td>
<td>比较,身份测试,成员资格测试</td>
</tr>
<tr>
<td>not</td>
<td>布尔非</td>
</tr>
<tr>
<td>and</td>
<td>布尔与</td>
</tr>
<tr>
<td>or</td>
<td>布尔或</td>
</tr>
<tr>
<td>if - else</td>
<td>条件表达式</td>
</tr>
<tr>
<td>lambda</td>
<td>lambda表达式</td>
</tr>
</tbody>
</table>
        </article>
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