object(stdClass)#4 (5) {
  ["errcode"]=>
  int(88)
  ["sub_code"]=>
  string(5) "40014"
  ["sub_msg"]=>
  string(24) "不合法的access_token"
  ["errmsg"]=>
  string(62) "ding talk error[subcode=40014,submsg=不合法的access_token]"
  ["request_id"]=>
  string(13) "16kz029xgmtj2"
}