第2个回答 2011-09-18
#inlcude<stdioh>
main()
{
int a,b;
char ch,ch1;
scanf("%d%c%d%c",&a,&ch,&b,&ch1);
switch(ch)
{
case '+':printf("%d%c%d%c%d",a,ch,b,ch1,a+b);break;
case '-':printf("%d%c%d%c%d",a,ch,b,ch1,a-b);break;
case '*':printf("%d%c%d%c%d",a,ch,b,ch1,a*b);break;
case '/':printf("%d%c%d%c%d",a,ch,b,ch1,a/b);break;
default:printf("not!\n");
}
return 0;
}