计算器程序，帮忙看一下。调试成功，就是算不出来！ 怎么回事？
#include<stdio.h>
void main()
{

double number1 = 0.0;
double number2 = 0.0;
char fuhao = 0;

printf("???:");
scanf("%lf %c %lf",&number1,&fuhao,number2);
switch(fuhao)
{
case '+':
printf("=\n",number1 + number2);
break;
case '-':
printf("=%lf\n",number1 - number2);
break;
case '*':
printf("=%lf\n",number1 * number2);
break;
case '/':
if(number2 == 0)

printf("????? ??? ?????.\n");

else
printf("=%lf\n",number1 / number2);
break;
default:
printf("??? ????????.\n");
}
}


[解决办法]
scanf("%lf %c %lf",&number1,&fuhao,number2);//number2前面漏了&