比较三个数的大小

#include <stdio.h>
void main()
{
float a,b,c,t;
printf("Enter three number(separate by commas):\n");
scanf_s("%f,%f,%f",&a,&b,&c);
if(a > b)
{
t = a; a = b; b = t;
}
if(a > c)
{
t = a; a = c; c = t;
}
if(b > c)
{
t = b; b = c; c = t;
}
printf("%2.2f %2.2f %2.2f",a,b,c);
}