process.stdin
process.stdin 属性返回连接到 stdin (文件描述符 0) 的流。它是一个 net.Socket(它是一个 双工 流)除非 fd 0 引用一个文件,在这种情况下它是一个 可读 流。
\The process.stdin property returns a stream connected to
stdin (fd 0). It is a net.Socket (which is a Duplex
stream) unless fd 0 refers to a file, in which case it is
a Readable stream.
有关如何从 stdin 读取的详细信息,请参阅 readable.read()。
\For details of how to read from stdin see readable.read().
作为 双工 流,process.stdin 也可以在 "old" 模式下使用,与 v0.10 之前为 Node.js 编写的脚本兼容。有关详细信息,请参阅 流兼容性。
\As a Duplex stream, process.stdin can also be used in "old" mode that
is compatible with scripts written for Node.js prior to v0.10.
For more information see Stream compatibility.
在 "old" 流模式下,stdin 流默认暂停,因此必须调用 process.stdin.resume() 才能从中读取。另请注意,调用 process.stdin.resume() 本身会将流切换到 "old" 模式。
\In "old" streams mode the stdin stream is paused by default, so one
must call process.stdin.resume() to read from it. Note also that calling
process.stdin.resume() itself would switch stream to "old" mode.