/// <summary>
/// 构造函数，父类具有相同的构造形式，直接将父类的构造参数传入进行初始化
/// </summary>
/// <param name="strObj"></param>
public ConcreteDecorator_AddRSS(ComponentString strObj)
: base(strObj)
{
}
/// <summary>
/// 构造函数，对其私有成员赋值
/// </summary>
/// <param name="strObj"></param>
public DecoratorNews(ComponentString strObj)
{
this.obj = strObj;
}