string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%AC%E4%B8%9C%E7%99%BD%E6%9D%A1%E7%94%A8%E4%B8%8D%E7%94%A8%E5%BC%80%E9%80%9A => Failed to connect to 101.89.117.144 port 38208: Connection refused"
京东白条用不用开通
