using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;


namespace?FYClassForCalculateDraft
{
??public??class?CommandManager
????{

????????#region?Command定義
????public?class?Command
????{
????????string?name;
???????public?Action?action;????//恢復委托
???????public??Action?unDoAction;????//撤銷委托

????????internal?Command（string?name?Action?action?Action?unDoAction）??????????????????//命令接口
????????{
????????????this.name?=?name;
????????????this.action?=?action;
????????????this.unDoAction?=?unDoAction;
????????}

????????internal?void?Do（）?{?action（）;?}???????????????????????//恢復接口
????????internal?void?UnDo（）?{?unDoAction（）;?}?????????????????????????//撤銷接口

????????public?override?string?ToString（）??????????????????????????//重寫ToString（）方法
????????{
????????????return?name.ToString（）;
????????}
????}
????#endregion



///?

///?重做命令集合
///?

????public?List?ReDoActionList?{?get;?private?set;?}???
??????///?

??????///?撤銷命令集合
??????///?

????public?List?UnDoActionList?{?get;?private?set;?}??????

///?

///?最大的命令個數，為可空數據對象，如果不賦值，則最大命令個數沒有限制
///?

????int??maxCount;?????????????//最大的存儲數量
????///?

????///?最大的命令個數，為可空數據對象，如果不賦值，則最大命令個數沒有限制，最小限制個數為5個
????///?

????public?int??MaxCount???????//最大的存儲數量如果輸入的數字<5最大數量=5，否則就是按最大數量
????{
????????get?{?return?maxCount;?}
????????set?{
????????????if?（value?????????????????maxCount?=?5;?
????????????else
????????????maxCount?=?value;?}
????}


///?

///?根據最大命令個數構造
///?

///?最大的命令個數
????public?CommandManager（int??count）???//創建構造方法
????{
????????ReDoActionList?=?new?List（）;
????????UnDoActionList?=?new?List（）;
????????this.MaxCount?=?count;
????}
///?

///?直接構造類，沒有命令限制
///?

????public?CommandManager（）???//創建構造方法
????{
????????ReDoActionList?=?new?List（）;
????????UnDoAc