// 预处理器编译指令: #include
#include "iostream"

//编译指令: using namespace
using namespace std;

//函数头: int main() 及 函数体 {}
int main() {
    // C++的 cout 工具
    cout << "Come up and C++ me some time.";
    cout << endl;
    cout << "You won't regret it !" << endl;
    int a = 123;
    int *p = &a ;
    cout << "address:" << p;
    //结束main()函数的return语句
    return 0;
}