gcc 编译c++文件

#include <stdio.h>
//将类定义在命名空间中
namespace Diy{
    class Student{
    public:
        char *name;
        int age;
        float score;
  
    public:
        void say(){
            printf("%s的年龄是 %d，成绩是 %f
", name, age, score);
        }
    };
}
int main(){
    Diy::Student stu1;
    stu1.name = "小明";
    stu1.age = 15;
    stu1.score = 92.5f;
    stu1.say();
    return 0;
}

编译

 gcc -lstdg++ test.cpp

运行

./a.out