条件语句

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace 猜拳
{
    class Program
    {
        static void Main(string[] args)
        {
            while (true)
            {
                //用户输入石头剪子布，计算器也随机出一个石头剪子布，
                //用户与计算机进行对比，得出胜负；

                //1、用户输入选择的手势
                Console.Write("请输入您的手势（石头：0，剪子：1，布：2）：");
                int yh = Convert.ToInt32(Console.ReadLine());

                //2、计算机随机选出计算机的手势
                Random r = new Random();
                int dn = r.Next(0, 3);

                //3、对比，输出结果
                //石头0，剪子1，布2
                //0 1 = -1
                //1 2 = -1
                //2 0 = 2

                //0 2 = -2 
                //1 0 = 1
                //2 1 = 1
                int jg = yh - dn;
                if (jg == -1 || jg == 2)
                {
                    Console.WriteLine("用户胜利！");
                }
                else if (jg == -2 || jg == 1)
                {
                    Console.WriteLine("用户失败！");
                }
                else
                {
                    Console.WriteLine("平局！");
                }
            }
            Console.ReadLine();
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace 随机数
{
    class Program
    {
        static void Main(string[] args)
        {
            Random r = new Random();

            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));
            Console.WriteLine(r.Next(0, 1));


            Console.ReadLine();
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace 条件语句练习
{
    class Program
    {
        static void Main(string[] args)
        {
            //男士体重=身高-100+-3
            //女士体重=身高-110+-3
            //KG  CM
            //90  180
            //180-100 = 80

            //男士体重 - 男士身高 = -100+-3；
            //男士体重 - 男士身高 +100 =+-3;


            //内容输入
            Console.Write("请输入您的性别：");
            string x = Console.ReadLine();
            Console.Write("请输入您的身高(cm)：");
            int g = Convert.ToInt32(Console.ReadLine());
            Console.Write("请输入您的体重(kg)：");
            int z = Convert.ToInt32(Console.ReadLine());

            //数据运算+数据输出
            if (x == "男")
            {
                //男士体重=身高-100+-3
                int bz = g - 100;

                if (z > bz + 3)
                {
                    Console.WriteLine("你偏胖了！");
                    Console.WriteLine("您超出了标准体重" + (z - (bz + 3)) + "公斤!");
                }
                else if (z < bz - 3)
                {
                    Console.WriteLine("你偏瘦了！");
                    Console.WriteLine("您距离标准体重还差" + (bz - 3 - z) + "公斤！");
                }
                else if (z <= bz + 3 && z >= bz - 3)
                {
                    Console.WriteLine("你身材很标准！继续保持！");
                }
            }
            else if (x == "女")
            {
                //女士体重=身高-110+-3
                int bz = g - 110;
                if (z <= bz + 3 && z >= bz - 3)
                {
                    Console.WriteLine("您身材很标准！继续保持！");
                }
                else if (z > bz + 3)
                {
                    Console.WriteLine("您偏胖了！");
                }
                else
                {
                    Console.WriteLine("您偏瘦了！");
                }
            }
            else
            {
                Console.WriteLine("性别输入有误！");
            }

            Console.ReadLine();
        }
    }
}