public static void Main(string[] args)
{
#region Prototype
var context = new Context(new ConcreteStrategyA());
context.Implement();
context = new Context(new ConcreteStrategyB());
context.Implement();
context = new Context(new ConcreteStrategyC());
context.Implement();
Console.WriteLine();
#endregion Prototype
var stragetyArray = new[]
{
"8 折",
"正常",
"原价",
"满300返100"
};
var random = new Random();
for (var i = 0; i < 10; i++)
{
var cashContext = new CashContext(stragetyArray[random.Next(stragetyArray.Length)]);
var money = random.Next(500);
Console.WriteLine($"结算方式：{cashContext.StrategyType} ，原价{money}，实际收取：{cashContext.GetResult(money)}");
}
Console.ReadLine();
}