输入三个数由大到小输出.

# include <stdio.h>

int main(void)

{

int a, b, c; 

int t;

printf("请输入三个整数（中间以空格分隔）:");

scanf_s("%d %d %d", &a, &b, &c);

if (a<b)

{

t = a;

a = c;

c = t;

}

if (a<c)

{

t = b;

b = c;

c = t;

}

if (b<c)

{

t = b;

b = c;

c = t;

}

printf("%d,%d,%d\n", a, b, c);

return 0;

}