.NET框架类命名空间

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Microsoft.CSharp
Microsoft.VisualBasic
Microsoft.Win32
System
System.CodeDom
System.CodeDom.Compiler
System.Collections
System.Collections.Specialized
System.ComponentModel
System.ComponentModel.Design
System.ComponentModel.Design.Serialization
System.Configuration
System.Configuration.Assemblies
System.Data
System.Data.Common
System.Data.OleDb
System.Data.SqlClient
System.Data.SqlTypes
System.Diagnostics
System.Diagnostics.SymbolStore
System.DirectoryServices
System.Drawing
System.Drawing.Design
System.Drawing.Drawing2D
System.Drawing.Imaging
System.Drawing.Printing
System.Drawing.Text
System.Globalization
System.IO
System.IO.IsolatedStorage
System.Messaging
System.Messaging.Design
System.Net
System.Net.Sockets
System.Reflection
System.Reflection.Emit
System.Resources
System.Runtime.CompilerServices
System.Runtime.InteropServices
System.Runtime.InteropServices.Expando
System.Runtime.Remoting
System.Runtime.Remoting.Activation
System.Runtime.Remoting.Channels
System.Runtime.Remoting.Contexts
System.Runtime.Remoting.Lifetime
System.Runtime.Remoting.Messaging
System.Runtime.Remoting.Metadata
System.Runtime.Remoting.Metadata.W3cXsd2001
System.Runtime.Remoting.Proxies
System.Runtime.Remoting.Services
System.Runtime.Serialization
System.Runtime.Serialization.Formatters
System.Runtime.Serialization.Formatters.Binary
System.Security
System.Security.Cryptography
System.Security.Cryptography.X509Certificates
System.Security.Permissions
System.Security.Policy
System.Security.Principal
System.Text
System.Text.RegularExpressions
System.Threading
System.Timers
System.Web
System.Web.Caching
System.Web.Configuration
System.Web.Handlers
System.Web.Hosting
System.Web.Mail
System.Web.Security
System.Web.SessionState
System.Web.UI
System.Web.UI.HtmlControls
System.Web.UI.WebControls
System.Web.Util
System.Windows.Forms
System.Windows.Forms.ComponentModel.Com2Interop
System.Windows.Forms.Design
System.Windows.Forms.PropertyGridInternal
System.Xml
System.Xml.Schema
System.Xml.Serialization
System.Xml.XPath
System.Xml.Xsl
Classes in System
__ComObject Enum PlatformID
Activator Environment PlatformNotSupportedException
AppDomain EventArgs Random
AppDomainSetup EventHandler RankException
AppDomainUnloadedException Exception ResolveEventArgs
ApplicationException ExecutionEngineException ResolveEventHandler
ArgIterator FieldAccessException RuntimeArgumentHandle
ArgumentException FlagsAttribute RuntimeFieldHandle
ArgumentNullException FormatException RuntimeMethodHandle
ArgumentOutOfRangeException GC RuntimeTypeHandle
ArithmeticException Guid SByte
Array IndexOutOfRangeException SerializableAttribute
ArrayTypeMismatchException Int16 Single
AssemblyLoadEventArgs Int32 StackOverflowException
AssemblyLoadEventHandler Int64 STAThreadAttribute
AsyncCallback IntPtr String
Attribute InvalidCastException SystemException
AttributeTargets InvalidOperationException ThreadStaticAttribute
AttributeUsageAttribute InvalidProgramException TimeSpan
BadImageFormatException LoaderOptimization TimeZone
BitConverter LoaderOptimizationAttribute Type
Boolean LocalDataStoreSlot TypeCode
Buffer MarshalByRefObject TypedReference
Byte Math TypeInitializationException
CannotUnloadAppDomainException MemberAccessException
TypeLoadException
Char MethodAccessException TypeUnloadedException
CharEnumerator MissingFieldException UInt16
CLSCompliantAttribute MissingMemberException UInt32
Console MissingMethodException UInt64
ContextBoundObject MTAThreadAttribute UIntPtr
ContextMarshalException MulticastDelegate UnauthorizedAccessException
ContextStaticAttribute MulticastNotSupportedException
UnhandledExceptionEventArgs
Convert NonSerializedAttribute UnhandledExceptionEventHandler
CrossAppDomainDelegate NotFiniteNumberException Uri
DateTime NotImplementedException UriBuilder
DayOfWeek NotSupportedException UriFormatException
DBNull NullReferenceException UriHostNameType
Decimal Object UriPartial
Delegate ObjectDisposedException ValueType
DivideByZeroException ObsoleteAttribute Version
DllNotFoundException OperatingSystem Void
Double OutOfMemoryException WeakReference
DuplicateWaitObjectException OverflowException
EntryPointNotFoundException ParamArrayAttribute
Interfaces in System
_AppDomain ICloneable ICustomFormatter IFormattable
IAppDomainSetup IComparable IDisposable IServiceProvider
IAsyncResult IConvertible IFormatProvider

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