Question

下面的程序是C++教材里面的，然后我在DEV-C++里面运行，进入DOS界面闪一下就没了，看不到输出，这是为什么

#include <iostream.h>
int main()
{
int myAge = 39; // initialize two integers
int yourAge = 39;
cout << "I am: " << myAge << " years old.\n";
cout << "You are: " << yourAge << " years old\n";
myAge++; // postfix increment
++yourAge; // prefix increment
cout << "One year passes...\n";
cout << "I am: " << myAge << " years old.\n";
cout << "You are: " << yourAge << " years old\n";
cout << "Another year passes\n";
cout << "I am: " << myAge++ << " years old.\n";

cout << "Let's print it again.\n";
cout << "I am: " << myAge << " years old.\n";
cout << "You are: " << yourAge << " years old\n";
return 0;
}

Answer 1

在 return 0；前 加上 system("pause"); dev 在运行的时候 没有自动调用system("pause")

Answer 2

加getch();
作用是接收一个字符，这样当程序结束前，需要你输入一个字符才能继续。
注意要加到return前边
如下：
cout << "I am: " << myAge << " years old.\n";
cout << "You are: " << yourAge << " years old\n";
getch();
return 0;
}

C++编译器不推荐DEV，我推荐CODEBLOCKS，学习或者做项目都很好用。

Answer 3

它运行完了就关闭了
有个语句 好像是 System("pause');
你加在 return 前面 ，让它 暂停一下

Answer 4

你在return 0;前面加上一句system("pause");就OK了！