NOT运算符使用的符号. [英] Symbol used for NOT operator.

问题描述

在C语言中哪个符号用作not运算符?

Which symbol is used as a not operator in the C language?

推荐答案

用于逻辑非的符号是!而用于按位不的是~

请参见下面的示例:

The symbol used for logic not is ! and the one used for bitwise not is ~

See the example below:

bool b1 = true;
bool b2 = false;
char m = 0x12; // i.e. 00010010 in binary
char n = ~m;   // m will be 0xED, i.e. 11101101 in binary

// Test if b1 is true AND b2 is NOT true
if (b1 && !b2)
{
   ...
}

有关C运算符的说明，请参见此内容.

http://c.comsci.us/etymology/operator/logicalnot.htm [ ^ ]

See this for clarity of C operators.

http://c.comsci.us/etymology/operator/logicalnot.htm[^]

该不是运算符为:-！" :laugh:

The not operator in is:- "!" :laugh:

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