Observer 观察者模式 （HeadFirst设计模式 c#）
Observer.cs
using System;
using System.Text;
using System.Collections.Generic;
namespace Observer
{
public interface ISubject
{
void RegisterObserver(IOvserver o);
void RemoveObserver(IOvserver o);
void NotifyObserver();
}
public interface IOvserver
{
void update(float temp, float humidity, float pressure);
}
public interface IDisplayElement
{
void display();
}
public class WeatherData:ISubject
{
private List<IOvserver> obList;
private float temperature;
private float humidity;
private float pressure;
public WeatherData()
{
obList = new List<IOvserver>();
}
public void RegisterObserver(IOvserver o)
{
obList.Add(o);
}
public void RemoveObserver(IOvserver o)
{
if (obList.IndexOf(o) >= 0)
{
&nb
相关文档：
首先写一个页面，上面要放一个Button
<html>
<head>
<title></title>
</head>
<body>
<input id="Button1" type="button" value="button" />
</body>
</html>
将其保� ......
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data;
namespace ConsoleApplication4
{
class Program
{
static void Main(string[] args)
{
//sqlserver身份验证
//s ......
参考《ASP.NET与SQL一起打包部署安装》
，这篇文章是针对VB.NET与SQL 一起打包的,但是我使用的是C#,当然只要修改一下主要安装类库就行了!C#的类库代码如下:DBCustomAction.cs
using System;
using System.Collections;
using System.Data.SqlClient;
using System.ComponentModel;
using System.Configuration.Inst ......
using System;
using System.Collections.Generic;
using System.Text;
using System.Security.Cryptography;//Cryptography密码术
namespace DAL
{
public class Enc ......
