string(245) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=booking%E4%B8%BA%E4%BB%80%E4%B9%88%E6%94%AF%E4%BB%98%E4%B8%8D%E6%88%90%E5%8A%9F => Failed to connect to 61.171.74.35 port 38027: Connection refused"
booking为什么支付不成功
