为什么输出不了等腰直角三角形,有什么修改方法吗?
#include<stdio.h>
#include<math.h>
#define EPS 1e-6
int main(void)
{
float a, b, c;
int flag = 1;
printf("Input a,b,c:");
scanf_s("%f,%f,%f", &a, &b, &c);
if (a + b > c && b + c > a && a + c > b)
{
if (fabs(a - b) <= EPS && fabs(b - c) <= EPS && fabs(c - a) <= EPS)
{
printf("等边");
flag = 0;
}
else if (fabs(a - b) <= EPS || fabs(b - c) <= EPS || fabs(c - a) <= EPS)
{
printf("等腰");
flag = 0;
}
if (fabs(a * a + b * b - c * c) <= EPS || fabs(b * b + c * c - a * a) <= EPS || fabs(a * a + c * c - b * b) <= EPS)
{
printf("直角");
flag = 0;
}
if (flag)
{
printf("一般");
}
printf("三角形\n");
}
else
{
printf("不是三角形\n");
}
return 0;
}