string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%89%8B%E6%9C%BA%E6%9F%A5%E8%AF%A2imei%E7%A0%81%E6%8C%87%E4%BB%A4 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
手机查询imei码指令
