child_process exec 乱码

const { exec } = require("child_process");
const iconv = require("iconv-lite");

const encoding = "cp936";
const bufferEncoding = "binary";

exec(`ipconfig`, { encoding: bufferEncoding }, function (err, stdout, stderr) {
  if (err) {
    console.log(iconv.decode(Buffer.from(err.stack, bufferEncoding), encoding));
    console.log(iconv.decode(Buffer.from(err.message, bufferEncoding), encoding));
  } else {
    console.log(iconv.decode(Buffer.from(stdout, bufferEncoding), encoding));
    console.log(iconv.decode(Buffer.from(stderr, bufferEncoding), encoding));
  }
});
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