Windows下Node.js使用child_process模块调用系统命令的编码问题

看代码：

const cp = require('child_process');const iconv = require('iconv-lite');let pid = 2756;cp.exec(`tasklist /FI "PID eq 2756"`, {encoding: 'buffer'}, (error , stdout, stderr) => {  if (error) throw error;  stdout = iconv.decode(stdout, 'gbk');  console.log(stdout);});