📅 最后修改于: 2020-10-31 04:22:38 🧑 作者: Mango
System.IO命名空间由与IO相关的类，结构，委托和枚举组成。这些类可用于读取数据并将其写入文件或数据流。它还包含用于文件和目录支持的类。
以下是驻留在System.IO名称空间中的类。
| Class | Description |
|---|---|
| BinaryReader | It is used to read primitive data types as binary values in a specific encoding. |
| BinaryWriter | It is used to write primitive types in binary to a stream. |
| BufferedStream | It is used to add a buffering layer to read and write operations on another stream. It is a sealed class. |
| Directory | It is used to expose static methods for creating, moving and enumerating through directories and subdirectories. It is a sealed class. |
| DirectoryInfo | It is used to expose instance methods for creating, moving and enumerating through directories and subdirectories. It is a sealed class. |
| DirectoryNotFoundException | It is used to handle exception related to the file or directory cannot be found. |
| DriveInfo | It is used to access the information on a drive. |
| DriveNotFoundException | It is used to handle drive not found exception. |
| EndOfStreamException | It is used to handle end of stream exception. |
| ErrorEventArgs | It provides data for the FileSystemWatcher.Error event. |
| File | This class provides static methods for the creation, copying, deletion, moving and opening of a single file. |
| FileFormatException | It is used to handle file format exception. |
| FileInfo | It is used to provide properties and instance methods for the creation, copying, deletion, moving and opening of files. |
| FileLoadException | It is used to handle file load exception. |
| FileNotFoundException | It is used to handle file load exception. |
| FileNotFoundException | It is used to handle file not found exception. |
| FileStream | It provides a Stream for a file, supporting both synchronous and asynchronous read and write operations. |
| FileSystemEventArgs | It provides data for the directory events. |
| FileSystemInfo | It provides the base class for both FileInfo and DirectoryInfo objects. |
| FileSystemWatcher | It listens to the file system change notifications and raises events when a directory or file in a directory, changes. |
| InternalBufferOverflowException | This class is used to handle internal buffer overflow exception. |
| InvalidDataException | It is used to handle invalid data exception. |
| IODescriptionAttribute | It sets the description visual designers can display when referencing an event, extender or property. |
| IOException | It is an exception class that handles I/O errors. |
| MemoryStream | It is used to create a stream whose backing store is memory. |
| Path | It performs operations on String instances that contain file or directory path information. |
| PathTooLongException | It is an exception class and used to handle path too long exception. |
| PipeException | This exception class is used to handle pipe related exception. |
| RenamedEventArgs | It is used to provide data for the Renamed event. |
| Stream | It is used to provide a generic view of a sequence of bytes. It is an abstract class. |
| StreamReader | It is used to implement a TextReader that reads characters from a byte stream. |
| StringReader | It is used to implement a TextReader that reads from a string. |
| StringWriter | It is used to implement a TextWriter for writing information to a string. The information is stored in an underlying StringBuilder. |
| TextReader | This class is used to represent a reader that can read a sequential series of characters. |
| TextWriter | This class is used to represent a writer that can write a sequential series of characters. |
| UnmanagedMemoryAccessor | It is used to provide random access to unmanaged blocks of memory from managed code. |
| UnmanagedMemoryStream | It is used to get access to unmanaged blocks of memory from managed code. |
以下是驻留在System.IO命名空间中的结构。
| Structure | Description |
|---|---|
| WaitForChangedResult | It contains information on the change that occurred. |
System.IO命名空间包含以下委托。
| Delegates | Description |
|---|---|
| ErrorEventHandler | It represents the method that will handle the Error event of a FileSystemWatcher object. |
| FileSystemEventHandler | It represents the method that will handle the Changed, Created or Deleted event of a FileSystemWatcher class. |
| RenamedEventHandler | It represents the method that will handle the renamed event of a FileSystemWatcher class. |
下表包含驻留在System.IO名称空间中的枚举。
| Enumeration | Description |
|---|---|
| DriveType | It is used to define constants for drive types including CDRom, Fixed, Network etc. |
| FileAccess | It is used to define constants for read, write or read/write access to a file. |
| FileAttributes | It is used to provide attributes for files and directories. |
| FileMode | It is used to specify how the operating system should open a file. |
| FileOptions | It is used to represents advanced options for creating a FileStream object. |
| FileShare | It is used to contain constants for controlling the kind of access other FileStream objects can have to the same file. |
| HandleInheritability | It specifies whether the underlying handle is inheritable by child processes. |
| NotifyFilters | It is used to specify changes to watch for in a file or folder. |
| SearchOption | It is used to specify whether to search the current directory or the current directory and all subdirectories. |
| SeekOrigin | It is used to specify the position in a stream to use for seeking. |
| WatcherChangeTypes | It changes that might occur to a file or directory. |