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21 files changed

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‎AsynchronousProgramming/App.xaml‎

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<Application x:Class="AsynchronousProgramming.App"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:AsynchronousProgramming"
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StartupUri="MainWindow.xaml">
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<Application.Resources>
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</Application.Resources>
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</Application>

‎AsynchronousProgramming/App.xaml.cs‎

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using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Data;
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using System.Linq;
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using System.Windows;
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namespace AsynchronousProgramming
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{
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/// <summary>
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/// App.xaml 的交互逻辑
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/// </summary>
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public partial class App : Application
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{
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}
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}

‎AsynchronousProgramming/AsynchronousProgramming.csproj‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{69F5C12A-AE8A-4D21-B663-82F2983D933F}</ProjectGuid>
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<OutputType>WinExe</OutputType>
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<RootNamespace>AsynchronousProgramming</RootNamespace>
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<AssemblyName>AsynchronousProgramming</AssemblyName>
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<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
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<WarningLevel>4</WarningLevel>
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<Deterministic>true</Deterministic>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Reference Include="System.Data" />
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<Reference Include="System.Xml" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="System.Xaml">
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<RequiredTargetFramework>4.0</RequiredTargetFramework>
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</Reference>
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<Reference Include="WindowsBase" />
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<Reference Include="PresentationCore" />
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<Reference Include="PresentationFramework" />
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</ItemGroup>
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<ItemGroup>
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<ApplicationDefinition Include="App.xaml">
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<Generator>MSBuild:Compile</Generator>
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<SubType>Designer</SubType>
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</ApplicationDefinition>
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<Page Include="MainWindow.xaml">
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<Generator>MSBuild:Compile</Generator>
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<SubType>Designer</SubType>
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</Page>
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<Compile Include="App.xaml.cs">
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<DependentUpon>App.xaml</DependentUpon>
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<SubType>Code</SubType>
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</Compile>
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<Compile Include="MainWindow.xaml.cs">
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<DependentUpon>MainWindow.xaml</DependentUpon>
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<SubType>Code</SubType>
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</Compile>
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</ItemGroup>
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<ItemGroup>
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<Compile Include="Properties\AssemblyInfo.cs">
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<SubType>Code</SubType>
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</Compile>
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<Compile Include="Properties\Resources.Designer.cs">
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<AutoGen>True</AutoGen>
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<DesignTime>True</DesignTime>
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<DependentUpon>Resources.resx</DependentUpon>
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</Compile>
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<Compile Include="Properties\Settings.Designer.cs">
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<AutoGen>True</AutoGen>
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<DependentUpon>Settings.settings</DependentUpon>
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<DesignTimeSharedInput>True</DesignTimeSharedInput>
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</Compile>
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<EmbeddedResource Include="Properties\Resources.resx">
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<Generator>ResXFileCodeGenerator</Generator>
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<LastGenOutput>Resources.Designer.cs</LastGenOutput>
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</EmbeddedResource>
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<None Include="Properties\Settings.settings">
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<Generator>SettingsSingleFileGenerator</Generator>
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<LastGenOutput>Settings.Designer.cs</LastGenOutput>
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</None>
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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</Project>

‎AsynchronousProgramming/MainWindow.xaml‎

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<Window x:Class="AsynchronousProgramming.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:local="clr-namespace:AsynchronousProgramming"
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mc:Ignorable="d"
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Title="MainWindow" Height="450" Width="800">
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<DockPanel>
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<DockPanel DockPanel.Dock="Top" LastChildFill="True">
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<TextBlock DockPanel.Dock="Left">download address: </TextBlock>
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<Button DockPanel.Dock="Right" Click="Button_Click">download</Button>
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<TextBox Name="txbUrl"></TextBox>
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</DockPanel>
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<GroupBox Header="status: ">
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<TextBox Name="rtbState"></TextBox>
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</GroupBox>
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</DockPanel>
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</Window>

‎AsynchronousProgramming/MainWindow.xaml.cs‎

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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Text;
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using System.Threading;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Navigation;
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using System.Windows.Shapes;
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namespace AsynchronousProgramming
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{
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/// <summary>
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/// MainWindow.xaml 的交互逻辑
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/// </summary>
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public partial class MainWindow : Window
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{
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string text = "http://download.microsoft.com/download/7/0/3/703455ee-a747-4cc8-bd3e-98a615c3aedb/dotNetFx35setup.exe";
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public MainWindow()
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{
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InitializeComponent();
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txbUrl.Text = text;
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}
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private void Button_Click(object sender, RoutedEventArgs e)
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{
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rtbState.AppendText("downloading......\n");
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if (string.IsNullOrWhiteSpace(txbUrl.Text))
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{
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MessageBox.Show("please input download address");
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return;
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}
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DownloadFileSync(txbUrl.Text.Trim());
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}
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private void DownloadFileSync(string url)
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{
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int buffSize = 2048;
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byte[] bufferRead = new byte[buffSize];
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string savePath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\dotNetFx 35setup.exe";
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FileStream fileStream = null;
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HttpWebResponse myWebResponse = null;
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if (File.Exists(savePath))
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{
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File.Delete(savePath);
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}
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fileStream = new FileStream(savePath, FileMode.OpenOrCreate);
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try
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{
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HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
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if (myHttpWebRequest != null)
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{
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myWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
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Stream responseStream = myWebResponse.GetResponseStream();
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int readSize = responseStream.Read(bufferRead, 0, buffSize);
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while (readSize > 0)
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{
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rtbState.AppendText($"get {readSize} bytes\n");
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fileStream.Write(bufferRead, 0, readSize);
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readSize = responseStream.Read(bufferRead, 0, buffSize);
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}
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rtbState.AppendText($"finish download, the size of file is {fileStream.Length}, and the path of file is {savePath}\n");
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}
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}
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catch(Exception e)
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{
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rtbState.AppendText($"error: {e.Message}\n");
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}
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finally
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{
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if (myWebResponse!=null)
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{
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myWebResponse.Close();
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}
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if (fileStream!=null)
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{
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fileStream.Close();
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}
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}
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}
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}
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}

‎AsynchronousProgramming/Properties/AssemblyInfo.cs‎

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using System.Reflection;
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using System.Resources;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Windows;
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// 有关程序集的一般信息由以下
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// 控制。更改这些特性值可修改
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// 与程序集关联的信息。
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[assembly: AssemblyTitle("AsynchronousProgramming")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("AsynchronousProgramming")]
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[assembly: AssemblyCopyright("Copyright © 2021")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// 将 ComVisible 设置为 false 会使此程序集中的类型
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//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
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//请将此类型的 ComVisible 特性设置为 true。
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[assembly: ComVisible(false)]
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//若要开始生成可本地化的应用程序，请设置
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//.csproj 文件中的 <UICulture>CultureYouAreCodingWith</UICulture>
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//例如，如果您在源文件中使用的是美国英语，
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//使用的是美国英语，请将 <UICulture> 设置为 en-US。 然后取消
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//对以下 NeutralResourceLanguage 特性的注释。 更新
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//以下行中的“en-US”以匹配项目文件中的 UICulture 设置。
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//[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
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[assembly: ThemeInfo(
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ResourceDictionaryLocation.None, //主题特定资源词典所处位置
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//(未在页面中找到资源时使用，
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//或应用程序资源字典中找到时使用)
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ResourceDictionaryLocation.SourceAssembly //常规资源词典所处位置
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//(未在页面中找到资源时使用，
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//、应用程序或任何主题专用资源字典中找到时使用)
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)]
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// 程序集的版本信息由下列四个值组成:
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//
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// 主版本
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// 次版本
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// 生成号
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// 修订号
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//
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// 可以指定所有值，也可以使用以下所示的 "*" 预置版本号和修订号
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// 方法是按如下所示使用“*”: :
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]

‎AsynchronousProgramming/Properties/Resources.Designer.cs‎

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