Beggars cannot be choosers.
A bird in the hand is worth two in the bush.
A man may lead a horse to the water, but he cannot make it drink.—Heywood
ls ex1.*
./ex1.out
cat ex1.cpp
g++ -c ex1.cpp
g++ -o ex1.out ex1.o
// Mac的指令先导知识－－源程序拆分
使用头文件分离声明与定义
// //func.h
// int ADD(int a, int b);
//func.h //防止重复包含导致的编译错误
#ifndef FUNC_H
#define FUNC_H
int ADD(int a, int b);
#endif
//func.cpp
#include "func.h"
int ADD(int a, int b)
{ return a + b; }
//main.cpp
#include<iostream>
#include<cstdio>
#include "fun.h"
int main(int argc, char** argv) {
if (argc != 3) {
std::cout << "Usage: " << argv[0] << " op1 op2" << std::endl;
return 1;
}
int a, b;
a = atoi(argv[1]);
b = atoi(argv[2]);
std::cout << ADD(a, b) << std::endl;
return 0;
}多个源文件的编译链接
Thanks the new world, thanks the best time. We donot need to do it.
- 使用控制台窗口的命令行
c1 -GX ex51.cpp ex52.cpp -o ex5.exe
- 使用集成开发环境IDE
添加文件到工程
- 使用MAKE工具
# Xu Mingxing @ 20070525
# C++ Course for THU2006
#
all: main.exe test.exe
main.exe: main.cpp student.cpp
g++ -o main.exe main.cpp student.cpp
test.exe: student.cpp student_test.cpp
g++ -o test.exe student_test.cpp student.cpp
clean:
del *.obj *.exe
