流的类型

Node.js 中有四种基本的流类型：

• Writable: 可以写入数据的流（例如，fs.createWriteStream()）。
• Readable: 可以从中读取数据的流（例如，fs.createReadStream()）。
• Duplex: Readable 和 Writable 的流（例如，net.Socket）。
• Transform: 可以在写入和读取数据时修改或转换数据的 Duplex 流（例如，zlib.createDeflate()）。

此外，此模块还包括实用函数 stream.pipeline()、stream.finished()、和 stream.Readable.from()。

There are four fundamental stream types within Node.js:

• Writable: streams to which data can be written (for example, fs.createWriteStream()).
• Readable: streams from which data can be read (for example, fs.createReadStream()).
• Duplex: streams that are both Readable and Writable (for example, net.Socket).
• Transform: Duplex streams that can modify or transform the data as it is written and read (for example, zlib.createDeflate()).

Additionally, this module includes the utility functions stream.pipeline(), stream.finished() and stream.Readable.from().