输入三个整数x,y,z，请把这三个数由小到大输出。

#include<stdio.h>
main()
{
int a,b,c,t;
printf("Enter a,b,c:") scanf("%d,%d,%d",&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("%d,%d,%d",a,b,c);
}
应该会对的你试试，这是在C上运行的。

Math.Max();

专家好~

class Program
    {
        static void Main(string[] args)
        {
            //要求用户输入三个数
            int[] num=new int[3];
            for (int i = 0; i < 3; i++)
            {
                Console.Write("请输入第{0}个整数：", i + 1);
                num[i] = Convert.ToInt32(Console.ReadLine());
            }
            //排序
            //冒泡排序
            for (int i = 1; i < 3; i++)
            {
                for (int j = 0; j < 3 - j; j++)
                {
                    if (num[j] > num[j + 1])
                    {
                        int t;
                        t = num[j];
                        num[j] = num[j + 1];
                        num[j + 1] = t;
                    }
                }

            }
            //输出
            for (int i = 0; i < 3; i++)
            {
                Console.Write(num[i] + "\t");
            }
        }
    }