可写流

¥Writable streams

可写流是数据写入目标的抽象。

¥Writable streams are an abstraction for a destination to which data is written.

Writable 流的示例包括：

¥Examples of Writable streams include:

• 客户端上的 HTTP 请求

  ¥HTTP requests, on the client

• 在服务器上的 HTTP 响应

  ¥HTTP responses, on the server

• 文件系统写入流

  ¥fs write streams

• zlib 流

  ¥zlib streams

• 加密流

  ¥crypto streams

• TCP 套接字

  ¥TCP sockets

• 子进程标准输入

  ¥child process stdin

• process.stdout, process.stderr

其中一些示例实际上是实现 Writable 接口的 Duplex 流。

¥Some of these examples are actually Duplex streams that implement the Writable interface.

所有的 Writable 流都实现了 stream.Writable 类定义的接口。

¥All Writable streams implement the interface defined by the stream.Writable class.

虽然 Writable 流的特定实例可能以各种方式不同，但所有的 Writable 流都遵循相同的基本使用模式，如下例所示：

¥While specific instances of Writable streams may differ in various ways, all Writable streams follow the same fundamental usage pattern as illustrated in the example below:

const myStream = getWritableStreamSomehow();
myStream.write('some data');
myStream.write('some more data');
myStream.end('done writing data'); 拷贝