12.18.cpp

这是C++的一部分练习程序!对初学者有一定的帮助作用。

#include <iostream.h>
#include <fstream.h>
void main()
{
	int n;
	cout<<"Enter an integer: ";
	cin>>n;
	while(!cin)
	{
		cin.clear();
		cin.ignore(80,'\n');
		cout<<"Try again!\n";
		cout<<"Enter an integer: ";
		cin>>n;
	}
	cout<<"The integer enetered is "<<n<<endl;
}