从节点12.3开始,stream.Readable有一个from
方法可以轻松地从任何可迭代对象(包括数组文字)创建流:
const { Readable } = require('stream')
const readable = Readable.from('input string')
readable.on("data", (chunk) => {
console.log(chunk) // will be called once with `"input string"`
})