static void Main(string[] args)
{
try
{
Console.WriteLine("欢迎来到.net高级班vip课程，今天是设计模式的学习");
{
AbstractStudent student = new StudentVip()
{
Id = 381,
Name = "候鸟"
};
//RegUser
//付费 要预习
student.Study();
Console.WriteLine("****************************************");
//{
// AbstractStudent studentDecorator = new BaseStudentDecorator();
// studentDecorator.Study();// 学习课程，，在学习前加点东西：付费 要预习
//}
{
//StudentPreviewDecorator studentDecorator = new StudentPreviewDecorator(student);
//AbstractStudent studentDecorator = new StudentPreviewDecorator(student);//换成抽象变量
//studentDecorator.Study();
//student = new StudentHomeworkDecorator(student);
student = new StudentPreviewDecorator(student);//原有变量
student = new StudentRegDecorator(student);
student = new StudentPayDecorator(student);
student = new StudentHomeworkDecorator(student);
student = new StudentCommentDecorator(student);
//student.Study();
//学习之后 巩固练习homework
//student = new StudentHomeworkDecorator(student);
student.Study();
}
}
//{
// AbstractStudent student = new StudentFree()
// {
// Id = 381,
// Name = "候鸟"
// };
// student.Study();
// Console.WriteLine("****************************************");
// student = new StudentPreviewDecorator(student);//原有变量
// student = new StudentPayDecorator(student);
// student.Study();
//}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.Read();
}
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;
}
}