https://github.com/ckjbug/gist
功不唐娟(5W2H)
https://github.com/ckjbug/gist
Last synced: 4 months ago
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功不唐娟(5W2H)
- Host: GitHub
- URL: https://github.com/ckjbug/gist
- Owner: ckjbug
- Created: 2017-01-06T13:50:47.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2019-09-23T08:36:57.000Z (almost 7 years ago)
- Last Synced: 2025-01-10T07:01:33.187Z (over 1 year ago)
- Homepage:
- Size: 3.43 MB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Csharp Gist
> Csharp Gist代码片段
> CSharp_Util_Library类库
> DotNet.Utilities（整理）
---------
C#调用CMD来执行命令
```cs
//要执行的指令，如关机：shutdown -s -t 00
string str = "xxx"；
//开启一个新的进程用来跑CMD
Process p = new Process();
//设置要启动的应用程序
p.StartInfo.FileName = "cmd.exe";
//是否使用操作系统shell启动
p.StartInfo.UseShellExecute = false;
// 接受来自调用程序的输入信息
p.StartInfo.RedirectStandardInput = true;
//输出信息
p.StartInfo.RedirectStandardOutput = true;
// 输出错误
p.StartInfo.RedirectStandardError = true;
//不显示程序窗口
p.StartInfo.CreateNoWindow = true;
//启动程序
p.Start();
//向cmd窗口发送输入信息
p.StandardInput.WriteLine(str + "&exit");
p.StandardInput.AutoFlush = true;
//获取输出信息
string strOuput = p.StandardOutput.ReadToEnd();
//等待程序执行完退出进程
p.WaitForExit();
p.Close();
```
-----------------------
C#实现程序(x.exe)的重启
```cs
Application.Exit();
System.Diagnostics.Process.Start(System.Reflection.Assembly.GetExecutingAssembly().Location);
//或者使用Application.Restart();
```
-----------------------
C#实现程序开机自动启动（通过注册表设置启动项）
```cs
using system .microsoft.win32;//一定要引用
RegistryKey rk = Registry.LocalMachine;
RegistryKey rk2 = rk.CreateSubKey(@"Software\Microsoft\Windows\CurrentVersion\Run");
rk2.SetValue( "autorun",程序路径);
rk2.Close();
rk.Close();
```
-----------------------
C#通过调用窗口句柄进行截屏（功能更强大）
```cs
```
C#通过Winform程序获取Windows系统桌面截屏
```cs
//获取主屏
Screen s = Screen.PrimaryScreen;
//获取系统上所有显示器的截屏
//Screen[] screens = Screen.AllScreens;
//创建一个位图,将其大小设置为何屏幕大小一致,为了获取屏幕的图片
Bitmap bit = new Bitmap(s.Bounds.Width, s.Bounds.Height);
//利用当前bit获取一个画布,画布已经于Graphics对象关联
using (Graphics g = Graphics.FromImage(bit))
{
//将屏幕的(0,0)坐标截图内容copy到画布的(0,0)位置,尺寸到校 bit.size;
g.CopyFromScreen(new Point(0, 0), new Point(0, 0), bit.Size);
//将位图保存到D盘
bit.Save(@"C:\Users\Enz\Desktop\desktop.jpg");
//释放位图资源
bit.Dispose();
//释放画布
//g.Dispose();
}
```
-----------------------
C#使用TcpClient/TcpListener进行异步通信操作
```cs
public static class TcpHelper
{
public static async void ConnectAsTcpClient()
{
//声明一个通信客户单
using (var tcpClient = new TcpClient())
{
Console.WriteLine("[Client] Connecting to server");
await tcpClient.ConnectAsync("127.0.0.1", 1234);
Console.WriteLine("[Client] Connected to server");
//创建一个网络流来收发数据，也可以用内存流和文件流实现
using (var networkStream = tcpClient.GetStream())
{
Console.WriteLine("[Client] Writing request {0}", ClientRequestString);
await networkStream.WriteAsync(ClientRequestBytes, 0, ClientRequestBytes.Length);
var buffer = new byte[4096];
var byteCount = await networkStream.ReadAsync(buffer, 0, buffer.Length);
var response = Encoding.UTF8.GetString(buffer, 0, byteCount);
Console.WriteLine("[Client] Server response was {0}", response);
}
}
}
private static readonly string ClientRequestString = "Some HTTP request here";
private static readonly byte[] ClientRequestBytes = Encoding.UTF8.GetBytes(ClientRequestString);
private static readonly string ServerResponseString = "key 10000Device1\n";
private static readonly byte[] ServerResponseBytes = Encoding.UTF8.GetBytes(ServerResponseString);
public static async void StartListener()
{
//声明一个通信服务
var tcpListener = TcpListener.Create(1234);
//开始监听
tcpListener.Start();
//等待客户端连接
var tcpClient = await tcpListener.AcceptTcpClientAsync();
Console.WriteLine("[Server] Client has connected");
//创建一个网络流来收发数据
using (var networkStream = tcpClient.GetStream())
{
var buffer = new byte[4096];
Console.WriteLine("[Server] Reading from client");
var byteCount = await networkStream.ReadAsync(buffer, 0, buffer.Length);
var request = Encoding.UTF8.GetString(buffer, 0, byteCount);
Console.WriteLine("[Server] Client wrote {0}", request);
await networkStream.WriteAsync(ServerResponseBytes, 0, ServerResponseBytes.Length);
Console.WriteLine("[Server] Response has been written");
}
}
}
static void Main(string[] args)
{
TcpHelper.StartListener();
TcpHelper.ConnectAsTcpClient();
Console.ReadLine();
}
```
