寒假作业

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 1.输入三个整数,xyz,最终以从小到大的方式输出。利用if嵌套。
            Console.Write("请输入x:");
            int x = int.Parse(Console.ReadLine());
            Console.Write("请输入y:");
            int y = int.Parse(Console.ReadLine());
            Console.Write("请输入z:");
            int z = int.Parse(Console.ReadLine());
            if (x <= y && x <= z)
            {
                Console.WriteLine(x);
                if (y <= z)
                {
                    Console.WriteLine(y);
                    Console.WriteLine(z);
                }
                else
                {
                    Console.WriteLine(z);
                    Console.WriteLine(y);
                }
            }
            else if (y <= x && y <= z)
            {
                Console.WriteLine(y);
                if (x <= z)
                {
                    Console.WriteLine(x);
                    Console.WriteLine(z);
                }
                else
                {
                    Console.WriteLine(z);
                    Console.WriteLine(x);
                }
            }
            else //z是最小的
            {
                Console.WriteLine(z);
                if (x <= y)
                {
                    Console.WriteLine(x);
                    Console.WriteLine(y);
                }
                else
                {
                    Console.WriteLine(y);
                    Console.WriteLine(x);
                }
            }
            Console.ReadLine();

 

 

 

 


2.输入三个整数,xyz,最终以从小到大的方式输出。利用中间变量。
            最终的输出语句是
            Console.WriteLine(x+"、"+y+"、"+z);
            Console.WriteLine("请输入x");
            int x = int.Parse(Console.ReadLine());
            Console.WriteLine("请输入y");
            int y = int.Parse(Console.ReadLine());
            Console.WriteLine("请输入z");
            int z = int.Parse(Console.ReadLine());
            int a = 0;
            int b = 0;
            int c = 0;
            if (x > y)
            {
                a = x;
                x = y;
                y = a;
            }
            if (x > z)
            {
                b = x;
                x = z;
                z=b;
            }
            if (y > z)
            {
                c = y;
                y = z;
                z = c;
            }
            Console.WriteLine(x);
            Console.WriteLine(y);
            Console.WriteLine(z);
            Console.ReadLine();

                }
            }
            Console.ReadLine();

 

3.输入三个整数,xyz,最终以从小到大的方式输出。利用条件运算符。
                  ?   :
            问前面的表达式成立不成立,若成立得到冒号前面对的值
            若不成立,得到冒号后面的值

            Console.Write("请输入x");
            int x = int.Parse(Console.ReadLine());
            Console.Write("请输入y");
            int y = int.Parse(Console.ReadLine());
            Console.Write("请输入z");
            int z = int.Parse(Console.ReadLine());
            int a = (x <= y && x <= z) ? 1 : 2;
            if (a == 1)
            {
                if (y <= z)
                {
                    Console.WriteLine(x + "<" + y + "<" + z);
                }
                else
                {
                    Console.WriteLine(x + "<" + z + "<" + y);
                }
            }
            else
            {
                int b = (y <= x && y <= z) ? 1 : 2;
                if (b == 1)
                {
                    if (x <= z)
                    {
                        Console.WriteLine(y + "<" + x + "<" + z);
                    }
                    else
                    {
                        Console.WriteLine(y + "<" + z + "<" + x);
                    }
                }
                else
                {
                    if (x <= y)
                    {
                        Console.WriteLine(z + "<" + x + "<" + y);
                    }
                    else
                    {
                        Console.WriteLine(z + "<" + y + "<" + x);
                    }
                }
            }
            Console.ReadLine();

 

 


            4.“现在几点了?”键盘键入小时数,判断是上午am还是下午pm。
            打印出来现在是上午几点还是下午几点。利用条件运算符。
            Console.Write("请输入时间:");
            int t = int.Parse(Console.ReadLine());
            if (t >= 0 && t <= 24)
            {
                string a = (t > 12) ? ((t - 12) + "p.m.") : (t + "a.m.");
                Console.WriteLine(a);
            }
            else
            {
                Console.WriteLine("输入时间有误!");
            }
            Console.ReadLine();

 

 

            5.相亲过程:你有房子么?你有钱么?你有能力么?
            【结婚吧】【先买房子再结婚】【先赚钱再买房子再结婚】都没有【拜拜~~】
            利用if嵌套做相亲过程。
            Console.WriteLine("你有房子么?");
            string a = Console.ReadLine();
            if (a == "有")
            {
                Console.WriteLine("咱们结婚吧!");
            }
            else if (a == "没有")
            {
                Console.WriteLine("你有钱么?");
                string b = Console.ReadLine();
                if (b == "有")
                {
                    Console.WriteLine("先买房,再结婚");
                }
                else if (b == "没有")
                {
                    Console.WriteLine("你有能力么?");
                    string c = Console.ReadLine();
                    if (c == "有")
                    {
                        Console.WriteLine("先赚钱再买房再结婚");
                    }
                    else if (c == "没有")
                    {
                        Console.WriteLine("拜拜!");
                    }
                    else
                    {
                        Console.WriteLine("输入有误!");
                    }
                }
                else
                {
                    Console.WriteLine("输入有误!");
                }
            }
            else
            {
                Console.WriteLine("输入错误!");
            }
            Console.ReadLine();

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