static void Main(string[] args)
{
try
{
//{
// AbstractStudent student = new StudentVIPInherit()
// {
// Id = 1234,
// Name = "Ivan"
// };
// student.Study();
//}
//{
// AbstractStudent student = new StudentVIP()
// {
// Id = 1234,
// Name = "Ivan"
// };
// // 比起继承，组合跟家灵活 可以为多个类型服务，但是这个调用成本更高一点
// // 因为即关注了 AbstractStudent 类， 又关注了StudentCombination
// StudentCombination studentCombination = new StudentCombination(student);
// studentCombination.Study();
//}
{
AbstractStudent student = new StudentFree()
{
Id = 1234,
Name = "Ivan"
};
// BaseStudentDecorator baseStudentDecorator = new BaseStudentDecorator(student); // 1.
// AbstractStudent baseStudentDecorator = new BaseStudentDecorator(student); //2.
student = new BaseStudentDecorator(student);
student = new StudentHomeworkDecorator(student);
student = new StudentCommentDecorator(student);
// 不修改业务类， 可以随意添加功能 装饰器
// 还可以随意调整顺序
student.Study();
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
throw;
}
}
static void Main(string[] args)
{
AbstractStudent student = new StudentFree()
{
Id = 001,
Name = "小张"
};
//student.Study();
//AbstractStudent studentPreviewDecorator = new StudentPreviewDecorator(student);
//studentPreviewDecorator.Study();
student = new StudentPreviewDecorator(student);
student = new StudentRegDecorator(student);
student = new StudentPayDecorator(student);
student = new StudentHomeWorkDecorator(student);
student.Study();
Console.Read();
}