int main()
{int a,b,c;
char op
scanf("%d%c%d ",& amp壹,& amp運算放大器。b);
而(op!= '+' & amp;& ampop!= '-' & amp;& ampop!= ' * ' & amp& ampop!='/')
{printf("只能算加減乘除,請重新輸入:\ n ");
scanf("%d%c%d ",& amp壹,& amp運算放大器。b);
}
if(op = = '/' & amp;& ampb==0)
{printf("除以零。\ n ");
返回(1);
}
開關
{ case '+':c = a+b;打破;
格'-':c = a-b;打破;
case ' * ':c = a * b;打破;
案例'/':c = a/b;打破;
}
printf("%d%c%d=%d\n ",a,op,b,c);
返回0;
}