Question

c++中如果输入的是非数字则结束输入，这个句子怎么写

Answer 1

#include <stdio.h>
#include <windows.h>
int main()
{
int i;
while( 1 )
{
printf("Input a number:");
if( scanf("%d",&i) != 1)
break;
printf("%d\n",i);
system("pause");
system("cls");
}
puts("The things you input is not a number!!!");
return 0;
}

Answer 2

i=0;
while(i>='0'&&i<='9')
{
i=getch();
j++;
}

Answer 3

int main()
{
int i;
int m;
do {
m = scanf("%d", &i);
} while (m);
return 0;
}