/*输入四个数,要求按从大到小的顺序输出*/#include <stdio.h>void main(){ int a, b, c, d; printf("请输入四个不相同的整数:"); scanf_s("%d,%d,%d,%d", &a, &b, &c, &d); int t; if (a < b) t = b, b = a, a = t;/*a与b比较,将较大的保存到a*/ if (a < c) t = a, a = c, c = t;/*将上面保存的 a与c比较,将较大的数保存到a中*/ if (a < d) t = a, a = d, d = t;/*再将a与d比较,将较大的数保存到a中*/ if (b < c) t = b, b = c, c = t; if (b < d) t = b, b = d, d = t;/*将bcd进行比较,将最大的保存在b中*/ if (c < d) t = c, c = d, d = t;/*cd进行比较,较大的保存在c中*/ printf("这四个数从大到小顺序为:%d,%d,%d,%d", a, b, c, d);}