源作者:编程基础知识分享
c程序中运算对象必须为整数的运算符位运算就是直接对整数在内存中的二进制位进行操作，
按位运算符对位进行操作，并执行逐位运算。
＆，|和^的真值表如下：
假设A = 60，B = 13，二进制格式如下：
A = 0011 1100
B = 0000 1101
A&B = 0000 1100
A|B = 0011 1101
A^B = 0011 0001
~A = 1100 0011
下表列是C语言支持的按位运算符。假设变量A=60，变量B=13
创建源代码文件：mbitwise_operators.c，代码如下所示:
#includemain() {
unsigned int a = 60; /* 60 = 0011 1100 */
unsigned int b = 13; /* 13 = 0000 1101 */
int c = 0;
c = a & b; /* 12 = 0000 1100 */
printf("Line 1 - Value of c is %d ", c );
C程序中,%是只能用于整数运算的运算符c = a | b; /* 61 = 0011 1101 */
printf("Line 2 - Value of c is %d ", c );
c = a ^ b; /* 49 = 0011 0001 */
printf("Line 3 - Value of c is %d ", c );
c = ~a; /*-61 = 1100 0011 */
printf("Line 4 - Value of c is %d ", c );
c = a>2; /* 15 = 0000 1111 */
printf("Line 6 - Value of c is %d ", c );
}
执行代码，得到如下结果:
Line 1 - Value of c is 12
Line 2 - Value of c is 61
Line 3 - Value of c is 49
Line 4 - Value of c is -61
Line 5 - Value of c is 240
Line 6 - Value of c is 15
