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230问答网 > C语言中X&&1等价于什么? A．x!=0 B．x==0 C．x!=-1 D．x==-1

C语言中X&&1等价于什么? A．x!=0 B．x==0 C．x!=-1 D．x==-1

2025-03-29 21:08:19

推荐回答（2个）

回答1：

选A，&&表达式是实质上是一个判断：就是当作有两边的操作数都为真时，结果才为真。
这里X&&1，右边已经是真值，如果你需要X&&1返回的是真值，那么x就不能为0.也就是选A了。

回答2：

A. x ！= 0

&& 是逻辑与：
0&&0 = 0
1&&0 = 0
0&&1 = 0
1&&1 = 1

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