我的c#--类的继承,事件归纳
现在想写些基础的东西,方便自己整理总结:
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace testClass
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{
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public class Program
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{
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static void Main(string[] args)
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{
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ParentClass parent = new ParentClass();
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ParentClass childToParent = new ChildClass();
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ChildClass child = new ChildClass();
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Console.WriteLine("基类->基类对象 ParentClass parent = new ParentClass(); parent成员a={0}", parent.a);//输出3
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Console.WriteLine("子类->基类对象\r\n ParentClass childToParent = new ChildClass(); childToParent成员a={0}", childToParent.a);//3
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Console.WriteLine("子类->子类对象 ChildClass child = new ChildClass(); child成员a{0}", child.a);//322
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parent.test();//c.test 基类->基类对象
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childToParent.test();//c.test 子类->基类对象,用override 则调用之类方法,输出ChildClass.test
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child.test();//ChildClass.test 子类->子类对象
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Console.WriteLine("访问 基类 静态成员 stat={0}", ParentClass.stat);//300
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Console.WriteLine("访问 子类 静态成员 stat={0}", ChildClass.stat);//30011
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ParentClass.teststatic();
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ChildClass.teststatic();
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Console.WriteLine("基类成员包含 基类->基类对象 子类->基类对象 子类->子类对象 ,都必须是静态的\r\n{0}", ParentClass.pInp.a);//3
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Console.WriteLine("{0}", ParentClass.pInp_child.a);//322
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Console.WriteLine("{0}", ParentClass.cinparent.a);//3
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ParentClass.cinparent.test();//ChildClass.test
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Console.WriteLine("子类成员包含 基类->基类对象 子类->基类对象 子类->子类对象 ,都必须是静态的\r\n{0}", ChildClass.pInp.a);//3
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Console.WriteLine("{0}", ChildClass.pInp_child.a);//322
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Console.WriteLine("{0}", ChildClass.cinparent.a);//3
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ChildClass.cinparent.test();//ChildClass.test
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/**********委托**********/
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Console.WriteLine("\r\n/**********委托**********/");
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ParentClass.MathsOp mo = new ParentClass.MathsOp(parent.mydeleget);
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Console.WriteLine("调用基类的委托MathsOp,委托参数用基类的mydeleget;结果{0}", mo(36.5));//36.5
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ParentClass.MathsOp moMain = new ParentClass.MathsOp(mydeleget);
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Console.WriteLine("调用基类的委托MathsOp,委托参数用Program.Main的mydeleget;结果{0}", moMain(141.88));//141.88
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Console.WriteLine("/**********委托 end**********/");
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/*委托 end*/
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//订阅事件 类的静态事件也是可以的
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//c.EventMathsOp += new c.MathsOp(c_EventMathsOp);
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//c.testEvent();
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Console.WriteLine("\r\n\r\n //订阅事件 类的静态事件也是可以的\r\n //ParentClass.EventMathsOp += new ParentClass.MathsOp(c_EventMathsOp);\r\n //ParentClass.testEvent();");
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parent.EventMathsOp += new ParentClass.MathsOp(parent_EventMathsOp);
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parent.testEvent();
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Console.ReadLine();
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}
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static double ParentClass_EventMathsOp(double x)
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{
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Console.WriteLine("你调用的MathsOp事件,值是{0}", x);
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return x;
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}
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static double parent_EventMathsOp(double x)
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{
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Console.WriteLine("你调用的MathsOp事件,值是{0}",x);
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return x;
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}
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public static double mydeleget(double x)
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{
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return x;
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}
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}
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public class ParentClass
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{
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public int a=3 ;
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public static int stat = 300;
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public static ParentClass pInp = new ParentClass();
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public static ChildClass pInp_child = new ChildClass();
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public static ParentClass cinparent = new ChildClass();
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public ParentClass()
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{
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//pInp = new c();
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}
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public virtual void test()
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{
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Console.WriteLine("你调用的是基类ParentClass.test");
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}
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public static void teststatic()
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{
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Console.WriteLine("你调用的是 基类 静态方法ParentClass.test_static");
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}
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public delegate double MathsOp(double x);
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public double mydeleget(double x)
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{
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return x;
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}
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public static double mydelegetStatic(double x)
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{
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return x;
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}
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public /* static*/ event MathsOp EventMathsOp = new MathsOp(mydelegetStatic);
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public /* static */ void testEvent()
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{
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double x=new double();
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x=(double) Console.Read();
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while ( x!= 0.0)
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{
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EventMathsOp(x);
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x = (double)Console.Read();
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}
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}
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}
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public class ChildClass : ParentClass
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{
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public static ParentClass pInp = new ParentClass();
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public static ChildClass pInp_child = new ChildClass();
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public static ParentClass cinparent = new ChildClass();
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public int a = 322;
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public static int stat = 30011;
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public override void test()
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{
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Console.WriteLine("你调用的是 子类 ChildClass.test,这里用了override重写test()方法");
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}
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public static void teststatic()
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{
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Console.WriteLine("你调用的是 子类 静态方法ChildClass.test_static");
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}
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}
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}
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