C#代码记录【刘步垚吧】

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C#代码记录

Day01 委托
using System;
namespace Delegate
{
public class Greet
{
public delegate void GreetDelegate(string name);
public static void Greeting(string name,GreetDelegate gd)
{
gd (name);
}
public void ChineseGreeting(string name)
{
Console.WriteLine ("你好,"+name);
}
public void EnglandGreeting(string name)
{
Console.WriteLine ("Hello,"+name);
}
}
class MainClass
{
public delegate void DelegateChain();
//public delegate void MyDelegate(int para1,int para2);
public static void Main (string[] args)
{
MainClass mc = new MainClass ();
DelegateChain d1 = new DelegateChain (MainClass.staticMethod);
DelegateChain d2 = new DelegateChain (mc.method);
DelegateChain chain = null;
chain += d1;
chain += d2;
chain ();
Greet greet = new Greet ();
Greet.Greeting ("张三",greet.ChineseGreeting);
Greet.Greeting ("LISI",greet.EnglandGreeting);
Greet.Greeting ("Killer",new Greet.GreetDelegate(greet.EnglandGreeting));
/* MyDelegate d;
d = new MyDelegate (new MainClass().add);
MyDelegateMethod (d);*/
//Console.WriteLine ("Hello World1!");
}
/*public void add(int a,int b)
{
Console.WriteLine ("a+b={0}",a+b);
}
public static void MyDelegateMethod(MyDelegate mydelegate)
{
mydelegate(23,12);
}*/
public static void staticMethod()
{
Console.WriteLine ("static method");
}
public void method()
{
Console.WriteLine ("instance method");
}
}
}

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1楼2018-01-14 19:28回复

Day02 事件机制
using System;
namespace TEXT2
{
public class BridgeGroom
{
public delegate void MarryHandler(string msg);
public event MarryHandler marryevent;
public void SendMarriageMsg(string msg){
if (marryevent != null) {
marryevent(msg);
}
}
}
public class Friend
{
public string name;
public Friend (string _name)
{
name = _name;
}
public void RecieveMsg(string msg)
{
Console.WriteLine (this.name+"收到消息");
Console.WriteLine (msg);
}
}
class MainClass
{
public static void Main (string[] args)
{
BridgeGroom b =new BridgeGroom();
Friend f1 = new Friend ("z3");
Friend f2 = new Friend ("L4");
Friend f3 = new Friend ("w2");
b.marryevent += new BridgeGroom.MarryHandler (f1.RecieveMsg);
b.marryevent += new BridgeGroom.MarryHandler (f2.RecieveMsg);
b.marryevent += new BridgeGroom.MarryHandler (f3.RecieveMsg);
b.SendMarriageMsg ("我要结婚了");
Console.WriteLine ("Hello World!");
}
}
}

2楼2018-01-14 20:20

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Day 03 值类型&引用类型
using System;
namespace Program
{
public class A
{
public int num;
}
class MainClass
{
public static void Main (string[] args)
{
A a = new A ();
a.num =1;
mul (a);
Console.WriteLine ("a :"+a.num);
/*int num = 233;
add (num);
Console.WriteLine ("num :"+num);*/
}
/*public static void add(int addNumber)
{
addNumber = addNumber + 1;
Console.WriteLine ("addNum: "+addNumber);
}*/
public static void mul(A a)
{
a.num = a.num * 7;
Console.WriteLine ("a.num : "+a.num);
}
}
}

3楼2018-01-16 22:44

Day 04 泛型
using System;
namespace Program
{
public class CompareClass<T> where T : IComparable
{
public static T CompareValue(T value1,T value2)
{
if (value1.CompareTo (value2) > 0) {
return value1;
} else {
return value2;
}
}
}
class MainClass
{
public static void Main (string[] args)
{
int result = CompareClass<int>.CompareValue (32,56);
string resultStr = CompareClass<string>.CompareValue ("killer","Near");
Console.WriteLine ("result ={0} : ",result);
Console.WriteLine ("resultStr ={0} : ",resultStr);
}
}
}

4楼2018-01-17 22:11

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace Program
{
class MainClass
{
public static void TestGeneric1()
{
Stopwatch sw = new Stopwatch ();
ArrayList arrayList = new ArrayList ();
sw.Start ();
for (int i = 0; i < 1000000; i++) {
arrayList.Add (i);
}
sw.Stop ();
TimeSpan ts = sw.Elapsed;
string time = string.Format ("{0:00},{1:00},{2:00},{3:00}",ts.Hours,ts.Minutes,
ts.Seconds,ts.Milliseconds);
Console.WriteLine ("time1 : " +time);
}
public static void TestGeneric()
{
Stopwatch stopwatch = new Stopwatch ();
List<int> list = new List<int> ();
stopwatch.Start ();
for (int i = 0; i < 1000000; i++) {
list.Add (i);
}
stopwatch.Stop ();
TimeSpan ts = stopwatch.Elapsed;
string time = string.Format ("{0:00},{1:00},{2:00},{3:00}",ts.Hours,ts.Minutes,
ts.Seconds,ts.Milliseconds);
Console.WriteLine ("time : " +time);
}
public static void Main (string[] args)
{
MainClass.TestGeneric ();
MainClass.TestGeneric1 ();
//Console.WriteLine ("resultStr ={0} : ");
}
}
}

5楼2018-01-17 22:38

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Day 05 泛型约束
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace Program
{
class MainClass
{
public class SingleTon<T>where T:new()
{
private static T instance;
public static T getInstance(){
if (instance == null)
{
instance = new T ();
}
return instance;
}
public static T Instance
{
get
{ if (instance == null)
{
instance = new T ();
}
return instance;
}
}
public void Print()
{
Console.WriteLine ("666");
}
}
public class Person :SingleTon<Person>
{
public void PersonPrint()
{
Console.WriteLine ("233");
}
}
public class Animal :SingleTon<Animal>
{
public void AnimalPrint()
{
Console.WriteLine ("999");
}
}
public static void Main (string[] args)
{
Person.getInstance ().PersonPrint ();
Person.getInstance ().Print ();
Animal.Instance.AnimalPrint ();
//SingleTon.Instance.Print ();
//SingleTon.getInstance ().Print ();
//Console.WriteLine ("resultStr ={0} : ");
}
}
}

6楼2018-01-20 22:32

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace Program
{
class MainClass
{
public delegate void Mydelegate<DelegateT>(DelegateT num);
public static void Method(int num)
{
Console.WriteLine ("method method method，num:" +num);
}
public static void Method2(Mydelegate<string> d)
{
d ("Killer");
//Console.WriteLine ("method method method，num:" +num);
}
public static void Print(string str)
{
Console.WriteLine ("str:" +str);
}
public static void Main (string[] args)
{
Mydelegate<int> d;
d = new Mydelegate<int> (MainClass.Method);
d (12);
MainClass.Method2 (MainClass.Print);
//Console.WriteLine ("resultStr ={0} : ");
}
}
}

7楼2018-01-20 22:56

Day 06 匿名方法
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace Program
{
class MainClass
{
public delegate void ClosuerDelegate();
public delegate void voteDelegate(string name);
public static ClosuerDelegate ClourseMethod()
{
string CaptureVar = "能够被内部函数捕获的外部变量";
ClosuerDelegate del = delegate {
string localVar = "匿名方法内部的变量";
Console.WriteLine (CaptureVar + " " + localVar);
};
del();
return del;
}
public static void Main (string[] args)
{
ClosuerDelegate del = MainClass.ClourseMethod ();
//del ();
MainClass.ClourseMethod ();
voteDelegate vote = delegate(string nickname) {
Console.WriteLine ("nick is {0}", nickname);
};
vote("Jack");
}
}
}

8楼2018-01-25 22:33

Day 07 初始化对象&隐式类型
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace Program
{
public class Person{
public string Name{get;set;}
public int Age{ get; set;}
public string Sex{ get; set;}
public int ID{ get; set;}
}
class MainClass
{
public static void Main (string[] args)
{
List<string> list = new List<string> ();
list.Add ("y");
list.Add ("oooooooooo");
foreach (string item in list) {
Console.Write (item );
}
Person p = new Person (){Name="Killer",Age=12,Sex="M",ID=233 };
Console.WriteLine (p.Name+" "+p.Age+" "+p.Sex+" "+p.ID);
}
}
}

9楼2018-01-26 20:59

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