string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%A5%A8%E6%8D%AE%E6%80%BB%E5%BC%80%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%E5%95%8A => Failed to connect to 61.171.74.35 port 38027: Connection refused"
票据总开是什么意思啊
