以前项目中使用，以便再次使用和他人使用参考！
之前也尝试使用过其他工具记录知识点，如OneDrive、iCloud、Youdao等，这些工具能存储，但是不能很好整理导航。github支持markdown就能很好的存储片段代码和导航资源的功能，也以便同大家分享。
ProcessStartInfo startInfo = new ProcessStartInfo(fileName)
{
Arguments = arguments,
WorkingDirectory = Path.GetDirectoryName(fileName),
CreateNoWindow = true,
UseShellExecute = false,
RedirectStandardOutput = false,
RedirectStandardError = false,
Verb= "RunAs"//管理员身份时，设定该属性值
};
Process.Start(startInfo)注：以管理员身份调用时，宿主程序也必须已管理员身份运行中，否正调用会失败。
常用cmd命令:
; Following line opens Control Panel > Display Properties > Settings:
rundll32.exe shell32.dll,Control_RunDLL desk.cpl,, 3
;Lock Windows
rundll32.exe user32.dll, LockWorkStation
;Shutdown Computer
shutdown /s /t 4
;Reboot Computer
shutdown /r /t 4
;Uninstall a Program
control.exe appwiz.cpl
;Network Connections
control.exe ncpa.cpl
;PowerShell
powershell.exe -ExecutionPolicy RemoteSigned -noexit -command "cd ""%path%"""
;Edit Hosts
notepad.exe "C:\Windows\System32\drivers\etc\hosts"计算机\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Runwin10执行计划，win+r执行：
control schedtasks新增SubItemClick事件:
listView.StartEditing(Editors[e.SubItem], e.Item, e.SubItem);其中Editors需要是数组(每个列类型不同,拖动到ListView上,修改Visible为false).
/// <summary>
/// 获取进程内存
/// </summary>
/// <returns></returns>
public static string GetCurProcessMem()
{
var ps = Process.GetCurrentProcess();
var pf1 = new PerformanceCounter("Process", "Working Set - Private", ps.ProcessName); //第二个参数就是得到只有工作集
return (pf1.NextValue() / 1024 / 1024).ToString(CultureInfo.InvariantCulture);
}Microsoft.Extensions.Configuration依赖：
- Microsoft.Extensions.Configuration.Abstractions.dll
- Microsoft.Extensions.Configuration.dll
- Microsoft.Extensions.Configuration.FileExtensions.dll
- Microsoft.Extensions.Configuration.Json.dll
- Microsoft.Extensions.FileProviders.Abstractions.dll
- Microsoft.Extensions.FileProviders.Physical.dll
- Microsoft.Extensions.FileSystemGlobbing.dll
- Microsoft.Extensions.Primitives.dll
使用：
IConfigurationBuilder builder = new ConfigurationBuilder()
.AddJsonFile("AppInfos.json", false);
var root = builder.Build();
foreach (IConfigurationSection item in root.GetChildren())
{
}
var r= root["root"];skill：两种方式读取
var defaultcon = Configuration.GetConnectionString("DefaultConnection");
var devcon = Configuration["ConnectionStrings:DevConnection"];json文件：
{
"Data": "LineZero",
"ConnectionStrings": {
"DefaultConnection": "数据库1",
"DevConnection": "数据库2"
}
}如果有C#版本有x64和x86时，可以编译两个版本，把其中一个dll修改名称即可。 *场景：*有一个dll使用了pinvoke(即DllImport)调用api，可动态进行程序是x86还是x64进行动态加载； *实践：*本人使用了ioc（autofac）进行加载，在加载失败时进行指定dll加载即可：
var currentDomain = AppDomain.CurrentDomain;
var location = Assembly.GetExecutingAssembly().Location;
var assemblyDir = Path.GetDirectoryName(location);
if (assemblyDir != null)
{
currentDomain.AssemblyResolve += (sender, arg) =>
{//autofac 加载64版本时，会触发解析失败，运行下面代码进行加载指定的dll
//默认版本为(Assembly name).dll，64版本为(Assembly name)x64.dll
if (arg.Name.StartsWith("(Assembly name)", StringComparison.OrdinalIgnoreCase))
{
string fileName = Path.Combine(assemblyDir, string.Format("(Assembly name){0}.dll", (IntPtr.Size == 4) ? "" : "x64"));
return Assembly.LoadFile(fileName);
}
return null;
};
}按位数将dll放置不同的文件夹，使用api SetDllDirectory进行加载即可 NativeLibraryHandle.cs
主函数LoadDlls加载指定的dll即可：
static void LoadDlls()
{
NativeLibraryHandle.SetDllFloder();
LoadDll("libuv.dll");
}
static void LoadDll(string filename)
{
try
{
nativeLibraries.Add(new NativeLibraryHandle(filename));
}
catch (Exception ex)
{
}
}//将8字节转为日期
byte[] val=new byte[8];
DateTime.FromBinary(BitConverter.ToInt64(val, 0));