Csharp/C#入门/Lesson17_条件分支语句Switch练习/Program.cs

using System;
namespace Lesson17_条件分支语句Switch练习
{
    class Program
    {
        static void Main(string[] args)
        {
            #region 练习题一
            int salary = 4000;
            string comment;
            Console.WriteLine("请输入你的评价：");
            try
            {
                comment = Console.ReadLine();
                switch (comment)
                {
                    case "很兴奋":
                        salary += 500;
                        break;
                    case "很充实":
                        break;
                    case "还好吧":
                        salary -= 300;
                        break;
                    case "难理解":
                        salary -= 500;
                        break;
                    case "很无聊":
                        salary -= 800;
                        break;
                    default:
                        Console.WriteLine("请你输入正确的评价");
                        break;
                }
                Console.WriteLine("唐老师的工资是{0}", salary);
            }catch (Exception ex)
            {
                Console.WriteLine("发生异常：{0}", ex.Message);
            }
            #endregion

            #region 练习题二
            int money = 10;
            int choice; 
            Console.WriteLine("菜单：\n1=中杯，￥5\n2=大杯，￥7\n3=超大杯，￥11\n请你选择需要购买的咖啡：");
            try
            {
                choice = int.Parse(Console.ReadLine());
                switch (choice)
                {
                    case 1:
                        money -= 5;
                        if (money < 0)
                        {
                            Console.WriteLine("余额不足");
                            break;
                        }
                        Console.WriteLine("你买了中杯，还剩{0}元",money);
                        break;
                    case 2:
                        money -= 7;
                        if (money < 0)
                        {
                            Console.WriteLine("余额不足");
                            break;
                        }
                        Console.WriteLine("你买了大杯，还剩{0}元", money);
                        break;
                    case 3:
                        money -= 11;
                        if (money < 0)
                        {
                            Console.WriteLine("余额不足");
                            break;
                        }
                        Console.WriteLine("你买了超大杯，还剩{0}元", money);
                        break;
                    default:
                        Console.WriteLine("没有这个选项，请重新选择。");
                        break;
                }

            }catch (FormatException)
            {
                Console.WriteLine("输入格式错误，请输入数字。");
                return;
            }
            catch (Exception ex)
            {
                Console.WriteLine("发生异常：{0}", ex.Message);
                return;
            }
            #endregion

            #region 练习题三
            
            Console.WriteLine("请你输入你的考试成绩：");
            try {
                int score = int.Parse(Console.ReadLine());
                switch (score)
                {
                    case < 0:
                        Console.WriteLine("成绩不能为负数，请重新输入。");
                        break;
                    case <= 60:
                        Console.WriteLine("不及格");
                        break;
                    case <= 80:
                        Console.WriteLine("良好");
                        break;
                    case <= 90:
                        Console.WriteLine("优秀");
                        break;
                    case <= 100:
                        Console.WriteLine("满分");
                        break;
                    default:
                        Console.WriteLine("成绩超过100分，请重新输入。");
                        break;
                }
            }catch (FormatException)
            {
                Console.WriteLine("输入格式错误，请输入数字。");
                return;
            }
            catch (Exception ex)
            {
                Console.WriteLine("发生异常：{0}", ex.Message);
                return;
            }

            #endregion
        }
    }
}