写一个点c文件作为类的声明
Human.c

#include <iostream>
class Human{
        public:
                Human(){
                        std::cout<<"construct human.."<<std::endl;
                        age=0;
                        sex=0;
                };
                ~Human(){
                        std::cout<<"destroy human.."<<std::endl;
                }

        public:
                void setAge(int age);
                int getAge();
                void setSex(int sex);
                int getSex();
        private:
                int age;
                int sex;
};

再写一个点cpp文件作为实现
Human.cpp

#include<iostream>
#include "Human.c"
void Human::setAge(int a){
        age=a;
}

int Human::getAge(){
        return age;
}

void Human::setSex(int s){
        sex=s;
}

int Human::getSex(){
        return sex;
}

最后写一个入口文件
HumanMain.cpp

#include<iostream>
#include "Human.c"

int main(int argc,char* argv[]){
        Human human;
        human.setAge(18);
        human.setSex(0);

        std::cout<<"human: "<<human.getAge()<<","<<human.getSex()<<std::endl;
}

编译命令：

g++ -std=c++11 -g -o class Human.c Human.cpp HumanMain.cpp

执行命令：

./class

输出：

[root@localhost 文档]# ./class
construct human..
human: 18,0
destroy human..