Created
June 30, 2018 14:11
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C++使用Makefile编译
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#include<stdio.h> | |
#include"MyClass.h" | |
//调用MyClass需要两个东西 | |
// 1. MyClass.h,需要知道里面有什么函数,有什么类 | |
// 2. 由MyClass.h和MyClass.cpp编译出来的静态库libhello.a | |
// 编译libhello.a的命令为 `g++ -c MyClass.cpp && ar -crv libhello.a MyClass.o` | |
// 也可以使用别人已经生成好的lib,前提是需要有.h文件 | |
int main(){ | |
MyClass m; | |
int a=5, b=6; | |
int add = m.add(a, b); | |
int sub = m.sub(a, b); | |
printf("%d + %d = %d\n", a, b, add); | |
printf("%d - %d = %d\n", a, b, sub); | |
return 0; | |
}; |
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# 设置make命令入口 | |
default_target: all | |
# 静态库build命令 make hello | |
hello: | |
g++ -c MyClass.cpp | |
ar -crv libhello.a MyClass.o | |
# all依赖hello | |
all: hello | |
g++ main.cpp -L . -l hello -o app | |
#make clean命令定义 | |
clean: | |
rm *.o *.a app |
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// | |
// Created by Prince Wang on 2018/6/30. | |
// 实现Myclass里面的函数 | |
// | |
#include "MyClass.h" | |
MyClass::MyClass() { | |
} | |
int MyClass::add(int a, int b) { | |
return a + b; | |
} | |
int MyClass::sub(int a, int b) { | |
return a - b; | |
} |
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// | |
// Created by Prince Wang on 2018/6/30. | |
// 定义一个class的头文件 | |
// | |
#ifndef NEW_MYCLASS_H //防止循环定义 | |
#define NEW_MYCLASS_H | |
class MyClass { | |
public: | |
MyClass(); | |
int add(int a, int b); | |
int sub(int a, int b); | |
}; | |
#endif //NEW_MYCLASS_H |
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