#include<stdio.h>
int main(
void)
{
double value1,value2;
char op;
printf("Type in an expression:");
scanf("%lf%c%lf",&value1,&op,&
value2);
switch(op){
case'+':
printf("=%.2f\n",value1+
value2);
break;
case'-':
printf("=%.2f\n",value1-
value2);
break;
case'/':
printf("=%.2f\n",value1/
value2);
break;
default:
printf("Unknown operator\n");
break;
}
return 0;
}
转载于:https://www.cnblogs.com/liruijia199531/p/3357271.html
