[C#小程序]命令行小程序之你要买大杯小杯还是中杯的实现代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace ConsoleManyHellos
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("1=小杯3块，2=中杯4块，3=大杯5块");
            Console.Write("你的选择？");
            string s = Console.ReadLine();
            int n = int.Parse(s);
            switch (n)
            {
                case 1:
                    Console.WriteLine("小杯，请支付3块钱；");
                    break;
                case 2:
                    Console.WriteLine("中杯，请支付4块钱；");
                    break;
                case 3:
                    Console.WriteLine("大杯，请支付5块钱；");
                    break;
                default:
                    Console.WriteLine("默认中杯，请付款4块钱；");
                    break;
            }
            Console.WriteLine("谢谢使用，祝您用餐愉快！");
 
        }
    }
}