c++ primer 练习5.25

/**
* c++ primer 练习5.25
*
**/
#include <iostream>
#include <stdexcept>
using namespace std;

int main()
{
int n1, n2;
cout << "please input two integer: " << endl;
while (cin >> n1 >> n2) {
try {
if (n2 == 0) {
throw invalid_argument("除数不能为0");
}
cout << n1/n2 << endl;
} catch (invalid_argument err) {
cout << err.what()
<< "\nTry Again? Enter y or n" << endl;
char c;
cin >> c;
if (!cin || c == 'n') {
break;
}
}
}
return 0;
}