string(234) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=nfc%E5%8A%9F%E8%83%BD%E6%9C%80%E5%85%A8%E7%9A%84%E6%89%8B%E6%9C%BA => Failed to connect to 101.89.143.195 port 38109: Connection refused"
nfc功能最全的手机
