目录
测试项目
calculator.h
#ifndef __CALCULATOR_H__
#define __CALCULATOR_H__
#include <iostream>
extern int add(int x, int y);
extern int sub(int x, int y);
#endif
calculator.cpp
#include"calculator.h"
int main()
{
int result = add(10, 20);
std::cout << "result = " << result << std::endl;
return 0;
}
test01.cpp
#include"calculator.h"
int main()
{
int result = add(10, 20);
std::cout << "result = " << result << std::endl;
return 0;
}