模拟银行充值系统案例

【实例简介】 模拟银行充值系统案例

        1.微信充值 赠送10元
        2.支付宝充值 赠送20元
        3.银行卡充值 不送
【实例截图】
【核心代码】

namespace 模拟银行充值系统案例
    /// 1.微信充值 赠送10元
    /// 2.支付宝充值 赠送20元
    /// 3.银行卡充值 不送
{
    class Program
    {
        static void Main(string[] args)
        {
            double a = 0;//充值的总金额
            string yesno = "y";
            do
            {
                Console.WriteLine("1.微信充值");
                Console.WriteLine("2.支付宝充值");
                Console.WriteLine("3.银行卡充值");
                Console.WriteLine("请输入充值方式：");
                int b = int.Parse(Console.ReadLine());
                Console.WriteLine("请输入充值金额：");
                double c = int.Parse(Console.ReadLine());

                switch (b)
                {
                    case 1:
                        a = a c 10;
                        break;
                    case 2:
                        a = a c 20;
                        break;
                    case 3:
                        a = a c 0;
                        break;
                }
                Console.WriteLine("当前总金额{0}", a);
                Console.WriteLine("是否需要继续充值y/n?");
                yesno = Console.ReadLine();
                if (yesno != "y")
                {
                    yesno = "n";
                }
                Console.WriteLine("你选择方式是{0},程序退出", yesno);
            } while (yesno == "y");
            Console.ReadKey();
          
        }
    }
}