//具体请求处理方法
public override void ProcessRequest(PurchaseRequest request)
{
if (request.Amount < 500000)
{
Console.WriteLine("董事长{0}审批采购单：{1}，金额：{2}，采购目的：{3}。", this.name, request.Number, request.Amount, request.Purpose);
}
else
{
this.successor.ProcessRequest(request); //转发请求
}
}
static void Main(string[] args)
{
Approver wjzhang, gyang, jguo, meeting;
//Approver rhuang;
//rhuang = new Manager("黄蓉");
wjzhang = new Director("张无忌");
gyang = new VicePresident("杨过");
jguo = new President("郭靖");
meeting = new Congress("董事会");
//创建职责链
wjzhang.SetSuccessor(gyang);
gyang.SetSuccessor(jguo);
jguo.SetSuccessor(meeting);
//wjzhang.SetSuccessor(rhuang); //将“黄蓉”作为“张无忌”的下家
//rhuang.SetSuccessor(gyang); //将“杨过”作为“黄蓉”的下家
//gyang.SetSuccessor(jguo);
//jguo.SetSuccessor(meeting);
//创建采购单
PurchaseRequest pr1 = new PurchaseRequest(45000, 10001, "购买倚天剑");
wjzhang.ProcessRequest(pr1);
PurchaseRequest pr2 = new PurchaseRequest(60000, 10002, "购买《葵花宝典》");
wjzhang.ProcessRequest(pr2);
PurchaseRequest pr3 = new PurchaseRequest(160000, 10003, "购买《金刚经》");
wjzhang.ProcessRequest(pr3);
PurchaseRequest pr4 = new PurchaseRequest(800000, 10004, "购买桃花岛");
wjzhang.ProcessRequest(pr4);
Console.Read();
}
//具体请求处理方法
public override void ProcessRequest(PurchaseRequest request)
{
Console.WriteLine("召开董事会审批采购单：{1}，金额：{2}，采购目的：{3}。", this.name, request.Number, request.Amount, request.Purpose);
}
//抽象请求处理方法 public abstract void ProcessRequest(PurchaseRequest request);
//具体请求处理方法
public override void ProcessRequest(PurchaseRequest request)
{
Console.WriteLine("召开董事会审批采购单：{0}，金额：{1}元，采购目的：{2}。", request.Number, request.Amount, request.Purpose); //处理请求
}