策略模式的拓展性

XINCGer · XINCGer · commit 85720134caab · 2017-08-04T19:53:50.000+08:00
diff --git a/DesignPatterns/StrategyPattern/StrategyPattern/ProduceStrategySummer.cs b/DesignPatterns/StrategyPattern/StrategyPattern/ProduceStrategySummer.cs
@@ -41,6 +41,26 @@ public ProduceContext(ProduceStrategy ps)
             this.produceStrategy = ps;
         }
 
+        /// <summary>
+        /// &#21152;&#20837;&#31616;&#21333;&#24037;&#21378;&#27169;&#24335;
+        /// </summary>
+        /// <param name="i"></param>
+        public ProduceContext(int i)
+        {
+            switch (i)
+            {
+                case 1:
+                    produceStrategy= new ProduceStrategySummer();
+                    break;
+                case 2:
+                    produceStrategy = new ProduceStrategyWinter();
+                    break;
+                default:
+                    Console.WriteLine("&#27809;&#26377;&#27492;&#31181;&#31574;&#30053;");
+                    break;
+            }
+        }
+
         public void GetDecision(int cap)
         {
             produceStrategy.Decision(cap);
diff --git a/DesignPatterns/StrategyPattern/StrategyPattern/Program.cs b/DesignPatterns/StrategyPattern/StrategyPattern/Program.cs
@@ -26,6 +26,13 @@ static void Main(string[] args)
 
             produceContext = new ProduceContext(new ProduceStrategyWinter());
             produceContext.GetDecision(1);
+
+            ProduceContext ps = new ProduceContext(1);
+            ps.GetDecision(1);
+
+            ps = new ProduceContext(2);
+            ps.GetDecision(1);
+
         }
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -26,6 +26,13 @@ static void Main(string[] args)`
`26`	`26`
`27`	`27`	`produceContext = new ProduceContext(new ProduceStrategyWinter());`
`28`	`28`	`produceContext.GetDecision(1);`
	`29`	`+`
	`30`	`+ ProduceContext ps = new ProduceContext(1);`
	`31`	`+ ps.GetDecision(1);`
	`32`	`+`
	`33`	`+ ps = new ProduceContext(2);`
	`34`	`+ ps.GetDecision(1);`
	`35`	`+`
`29`	`36`	`}`
`30`	`37`	`}`
`31`	`38`	`}`