举例迭代器模式

XINCGer · XINCGer · commit 52032c587106 · 2017-09-08T20:27:22.000+08:00
diff --git a/DesignPatterns/IteratorPattern/IteratorPattern/Aggregate.cs b/DesignPatterns/IteratorPattern/IteratorPattern/Aggregate.cs
@@ -20,7 +20,7 @@ class ConcreteAggregate : Aggregate
 
         public override Iterator CreateIterator()
         {
-            
+            return new ConcreteIterator(this);
         }
 
         public int Size()
@@ -35,7 +35,7 @@ public Object GetItem(int i)
 
         public void SetItems(int i,Object obj)
         {
-            items[i] = obj;
+            items.Add(obj);
         }
     }
 }
diff --git a/DesignPatterns/IteratorPattern/IteratorPattern/IteratorPattern.csproj b/DesignPatterns/IteratorPattern/IteratorPattern/IteratorPattern.csproj
@@ -42,6 +42,8 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Aggregate.cs" />
+    <Compile Include="Iterator.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
diff --git a/DesignPatterns/IteratorPattern/IteratorPattern/Program.cs b/DesignPatterns/IteratorPattern/IteratorPattern/Program.cs
@@ -10,6 +10,18 @@ class Program
     {
         static void Main(string[] args)
         {
+            ConcreteAggregate aggregate = new ConcreteAggregate();
+
+            for (int i = 0; i < 10; i++)
+            {
+                aggregate.SetItems(i,"&#27714;&#32844;&#32773;"+(i+1));
+            }
+            Iterator iterator = aggregate.CreateIterator();
+            while (!iterator.IsDone())
+            {
+                Console.WriteLine(iterator.CurrentItem()+"&#26469;&#25105;&#20844;&#21496;&#38754;&#35797;");
+                iterator.Next();
+            }
         }
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,7 @@ class ConcreteAggregate : Aggregate`
`20`	`20`
`21`	`21`	`public override Iterator CreateIterator()`
`22`	`22`	`{`
`23`		`-`
	`23`	`+ return new ConcreteIterator(this);`
`24`	`24`	`}`
`25`	`25`
`26`	`26`	`public int Size()`
`@@ -35,7 +35,7 @@ public Object GetItem(int i)`
`35`	`35`
`36`	`36`	`public void SetItems(int i,Object obj)`
`37`	`37`	`{`
`38`		`- items[i] = obj;`
	`38`	`+ items.Add(obj);`
`39`	`39`	`}`
`40`	`40`	`}`
`41`	`41`	`}`
Original file line number	Diff line number	Diff line change
`@@ -10,6 +10,18 @@ class Program`
`10`	`10`	`{`
`11`	`11`	`static void Main(string[] args)`
`12`	`12`	`{`
	`13`	`+ ConcreteAggregate aggregate = new ConcreteAggregate();`
	`14`	`+`
	`15`	`+ for (int i = 0; i < 10; i++)`
	`16`	`+ {`
	`17`	`+ aggregate.SetItems(i,"求职者"+(i+1));`
	`18`	`+ }`
	`19`	`+ Iterator iterator = aggregate.CreateIterator();`
	`20`	`+ while (!iterator.IsDone())`
	`21`	`+ {`
	`22`	`+ Console.WriteLine(iterator.CurrentItem()+"来我公司面试");`
	`23`	`+ iterator.Next();`
	`24`	`+ }`
`13`	`25`	`}`
`14`	`26`	`}`
`15`	`27`	`}`