8楼正确
											以下是引用明明白白在2012-4-21 14:46:40的发言:
#include 
#include 
void main()
{
    double a,b,c;
      
        printf("please input first number:");
        scanf("%lf",&a);
        printf("please input second number:");
        scanf("%lf",&b);
          c=a+b;
            printf("the mum is: %lf \n",c);
 
}
感谢8楼童鞋!
我把printf("the mum is: %lf \n",c);
改为
printf("the num is: %lf \n",c);
意思更加准确了。
[
 本帖最后由 yuma 于 2012-4-26 09:37 编辑 ]