策略模式

DesignPattern.sln

@@ -23,6 +23,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ChainOfResponsibility", "Ch
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DecoratorPattern", "DecoratorPattern\DecoratorPattern.csproj", "{AD530192-DE5C-469F-B2C0-9314CA5CA686}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "StrategyPattern", "StrategyPattern\StrategyPattern.csproj", "{3DF008E9-391E-4F49-ADFA-CAD0D1ABA592}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -69,6 +71,10 @@ Global
 		{AD530192-DE5C-469F-B2C0-9314CA5CA686}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{AD530192-DE5C-469F-B2C0-9314CA5CA686}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{AD530192-DE5C-469F-B2C0-9314CA5CA686}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3DF008E9-391E-4F49-ADFA-CAD0D1ABA592}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3DF008E9-391E-4F49-ADFA-CAD0D1ABA592}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3DF008E9-391E-4F49-ADFA-CAD0D1ABA592}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3DF008E9-391E-4F49-ADFA-CAD0D1ABA592}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

StrategyPattern/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.1" />
+    </startup>
+</configuration>

StrategyPattern/ITravelStrategy.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StrategyPattern
+{
+    /// <summary>
+    /// 旅行策略类
+    /// </summary>
+    public abstract class TravelStrategy
+    {
+        /// <summary>
+        /// 目的地
+        /// </summary>
+        public string PlanName { get; set; }
+
+        /// <summary>
+        /// 预算
+        /// </summary>
+        public int Budget { get; set; }
+        /// <summary>
+        /// 旅游计划
+        /// </summary>
+        public abstract void TravelPlan();
+    }
+
+    public class GuangxiTravel : TravelStrategy
+    {
+        public GuangxiTravel()
+        {
+            this.PlanName = "广西桂林山水甲天下，心向往之！";
+        }
+        public override void TravelPlan()
+        {
+            Console.WriteLine("广西旅游计划：");
+            Console.WriteLine(string.Format("计划名称：{0}预算：{1}", this.PlanName, this.Budget));
+            if (this.Budget >= 4000)
+            {
+                Console.WriteLine("选择高铁出行！");
+            }
+            else
+            {
+                Console.WriteLine("选择大巴出行！");
+            }
+        }
+    }
+
+    public class BackupTravel : TravelStrategy
+    {
+        public BackupTravel()
+        {
+            this.PlanName = "逛街看电影包饺子！";
+        }
+        public override void TravelPlan()
+        {
+            Console.WriteLine("备用计划：");
+            Console.WriteLine(string.Format("计划名称：{0}", this.PlanName));
+        }
+    }
+}

StrategyPattern/Program.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StrategyPattern
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            TravelStrategy travelPlan = null;
+
+            Weather weather = (Weather)(new Random().Next(1,3));
+            switch (weather)
+            {
+                case Weather.Rain:
+                    Console.WriteLine("天气糟糕");
+                    travelPlan = new BackupTravel() ;
+                    break;
+                case Weather.Sunny:
+                    Console.WriteLine("天气晴好");
+                    travelPlan = new GuangxiTravel() { Budget = 3000 };
+                    break;
+            }
+
+            travelPlan.TravelPlan();
+
+            Console.ReadLine();
+
+        }
+    }
+
+    enum Weather
+    {
+        Sunny =1,
+        Rain = 2
+    }
+}

StrategyPattern/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("StrategyPattern")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("StrategyPattern")]
+[assembly: AssemblyCopyright("Copyright ©  2016")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+//将 ComVisible 设置为 false 将使此程序集中的类型
+//对 COM 组件不可见。  如果需要从 COM 访问此程序集中的类型，
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+// 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID
+[assembly: Guid("3df008e9-391e-4f49-adfa-cad0d1aba592")]
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+//可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值，
+// 方法是按如下所示使用“*”: :
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

StrategyPattern/StrategyPattern.csproj

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{3DF008E9-391E-4F49-ADFA-CAD0D1ABA592}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>StrategyPattern</RootNamespace>
+    <AssemblyName>StrategyPattern</AssemblyName>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="ITravelStrategy.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>