#include<stdio.h>
int main()
{
float jia(float a,float b);
float a,b,c;
printf("请输入a和b:\n");
scanf("%f,%f",&a,&b);
c=jia(a,b);
printf("%f\n",c);
return 0;
}
float jia(float x,float y)
{
float z;
z=x+y;
return (z);
}