Method fail

app/lib/helper.js:2–8

(err = {}, msg = '操作失败', errorCode = 10001)

class Resolve {
  fail(err = {}, msg = '操作失败', errorCode = 10001) {
    return {
      msg,
      err,
      errorCode
    }
  }

  success(msg = 'success', errorCode = 0, code = 200) {
    return {