给定函数原型:void bit_set(unsigned char *p_data,unsigned char positin,int flag)参数说明:p_data是指定的源数据;position是指定位(取值范围为1~8);flag表示置0还是置1操作。*p_data, unsigned char position, int flag){int a = 1<<(position-1);if (flag){*p_data |= a;}else{*p_data &= ~a;}}int main(){int a = 127;bit_set(&a,8,1);printf(“%d\n”,a);return 0;}
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