## process开启一个子进程,向父进程传递数据 ~~~ //child.js (function(){ var obj = { name:"chengchao", age:30 } process.send({obj}); process.exit(0) })(); ~~~ fork方法相当一个管道,连接子进程和主进程 ~~~ //parent.js const cp = require('child_process'); const {resolve} = require('path') ;(async()=>{ const script = resolve(__dirname,'./index.js'); //fork方法创建一个子进程,在父进程和子进程之间,建立一个通信管道,用户进程之间的通信 const child = cp.fork(script,[]) child.on('message',data=>{ console.log(data) }) })(); ~~~