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      <h1 class="index-header">

        <a href="/lky_blog/2021/03/29/bit-operation/">bit_operation</a>
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        <a href="/lky_blog/2021/03/29/bit-operation/">


          基本概念
&amp; 与运算 两个位都是1时，结果才为1，否则为0
| 或运算 两个位都是0时，结果才为0，否则为1
^ 异或运算 两个位相同则为0，不同则为1
~ 取反运算 0则变为1，1则变为0
&lt;&lt; 左移运算 向左进行移位操作，高位丢弃，地位补0
&gt;&gt; 右移运算 向右进行移位操作，对无符号数，高位补0，对于有符号数，高位补符号位

常见位运算问题
位操作实现乘除法


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              2021-03-29
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              <a href="/lky_blog/tags/%E4%BD%8D%E8%BF%90%E7%AE%97/">位运算</a>

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        <a href="/lky_blog/2021/03/01/how-to-use-hexo/">Hexo使用指南</a>
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          使用Hexo
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              2021-03-01
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              <a href="/lky_blog/tags/%E4%BD%BF%E7%94%A8%E6%8C%87%E5%8D%97/">使用指南</a>

              <a href="/lky_blog/tags/hexo/">hexo</a>

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        <a href="/lky_blog/2021/02/28/hello-world/">Hello World</a>
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          Welcome to Hexo! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, you can find the answer in troubleshooting or you can ask me on GitHub.
Quick
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              2021-02-28
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