程序代码：

#include <stdio.h>
#include <stdlib.h>
float main()
{
    float a,b,c;
    scanf("%f,%f,%f",&a,&b,&c);
    printf("sum=%f\n",a+b+c);
    printf("multiply=%f\n",a*b*c);
    printf("quotient=%f\n",a/b);
    system("pause");
    return 0;
}