keil下自定义lib静态库工程

#include <stdio.h> #include <math.h> #include "sub.h" #include "add.h" unsigned char add(unsigned char a, unsigned char b) { unsigned char c = a + b; c = add1(c,1); return c; } unsigned char sub(unsigned char a, unsigned char b) { unsigned char c = a - b; c = sub1(c,1); return c; } unsigned char value(unsigned char a) { return a+1; }