xor logical functions 异或逻辑函数
This allows you to perform bitwise logical and, or, XOR, and NOT comparisons.
这样便可以执行逐位的逻辑AND、OR、XOR和NOT比较。
You then combine the comparisons using the and instruction (note that you could have combined all the logical instructions into one with an xor, but the code would have been much less clear).
可以通过 and 指令进行组合比较（注意可以用一个 xor 将所有逻辑指令结合成一个，但那样做的代码应该比这个要清晰很多）。
The logical operators or, and, NOT and XOR can be used with a specified search proximity.
逻辑或营办商，并没有和异或可用于与指定的搜索距离。
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