public override void Operation()
{
base.Operation();
strB = "在公司";
ConcreteDecoratorA a = (ConcreteDecoratorA)component;
a.component.str = strB + a.component.str;
str = a.component.str;
Console.WriteLine(str);
}
static void Main(string[] arg)
{
ConcreteComponent cc = new ConcreteComponent();
ConcreteDecoratorA cda = new ConcreteDecoratorA();
ConcreteDecoratorB cdb = new ConcreteDecoratorB();
cda.SetComponent(cc);
cdb.SetComponent(cda);
cdb.Operation();
//Console.WriteLine(cdb.str);
}
