The "C language" implements a 0 or 1 operation on a specified bit of a 8bit data, and keeps the other bits intact.

Given function prototype: void Bit_set (unsigned char *p_data,unsigned char positin,int flag) Parameter description: P_data is the specified source data; position refers to positioning (the value range is 1~8) Flag indicates a 0 or 1 operation.

#include <stdio.h>voidBit_set (unsigned Char*p_data,unsigned CharPositionintFlag) {intA =1<< (position-1);if(flag)    {*p_data |= A; }Else{*p_data &= ~a; }}intMain () {intA =127; Bit_set (&a,8,1);printf("%d\n", a);return 0;}

The "C language" implements a 0 or 1 operation on a specified bit of a 8bit data, and keeps the other bits intact.