const childProcess = require('child_process');const exec = childProcess.execfunction viewProcessMessage (name, cb) {  let cmd = process.platform === 'win32' ? 'tasklist' : 'ps aux'  exec(cmd, function (err, stdout, stderr) {    if (err) {      return console.error(err)    }    stdout.split('\n').filter((line) => {      let processMessage = line.trim().split(/\s+/)      let processName = processMessage[0] //processMessage[0]进程名称 ， processMessage[1]进程id      if (processName === name) {        return cb(processMessage[1])      }    })  })}viewProcessMessage('name.exe',function (msg) {  //关闭匹配的进程  process.kill(msg)})