逻辑与按位 [英] Logical vs bitwise

问题描述

逻辑运算符and，or和按位模拟物&，|在用法上有什么区别?各种解决方案的效率是否存在差异?

What the different between logical operators and, or and bitwise analogs &, | in usage? Is there any difference in efficiency in various solutions?

推荐答案

逻辑运算符对逻辑值进行运算，而按位运算符对整数位进行运算.停止考虑性能，并按其预期目的使用它们.

Logical operators operate on logical values, while bitwise operators operate on integer bits. Stop thinking about performance, and use them for they're meant for.

if x and y: # logical operation
   ...
z = z & 0xFF # bitwise operation

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