string(261) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E6%94%B9%E7%AD%BE%E8%BF%98%E8%A6%81%E6%94%AF%E4%BB%981000%E5%A4%9A => Failed to connect to 101.91.112.32 port 38162: Connection refused"
为什么改签还要支付1000多
