什么是XAND和XOR [英] What are XAND and XOR

问题描述

什么是XAND和XOR?还有一个XNot

What are XAND and XOR? Also is there an XNot

推荐答案

XOR是 exclusive或的缩写.这是一个逻辑二进制运算符，要求两个操作数之一为true，但不是两个都为真.

XOR is short for exclusive or. It is a logical, binary operator that requires that one of the two operands be true but not both.

这些陈述是正确的:

TRUE XOR FALSE
FALSE XOR TRUE

这些陈述是错误的:

FALSE XOR FALSE
TRUE XOR TRUE

实际上并没有所谓的排他性和"(或XAND)，因为从理论上讲，它与XOR具有完全相同的要求.还没有XNOT，因为NOT是一元运算符，它会否定其单个操作数(基本上只是将布尔值翻转为相反的值)，因此它不支持任何排他性概念.

There really isn't such a thing as an"exclusive and" (or XAND) since in theory it would have the same exact requirements as XOR. There also isn't an XNOT since NOT is a unary operator that negates its single operand (basically it just flips a boolean value to its opposite) and as such it cannot support any notion of exclusivity.

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