C# (CSharp) IBeverage.CostWithSize示例

示例#1

 private static void Display2(IBeverage beverage)
 {
     Console.WriteLine("=>" + beverage.GetDrink() + " $" + beverage.CostWithSize());
 }

示例#2

 public double CostWithSize()
 {
     return(price + beverage.CostWithSize());
 }