string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%B4%E9%80%9A%E8%BD%A6%E5%BC%80%E4%BA%86%E5%90%8E%E5%A4%9A%E4%B9%85%E6%89%8D%E4%BC%9A%E6%90%9C%E5%88%B0%E4%BF%A1%E6%81%AF => Failed to connect to 61.171.74.35 port 38041: Connection refused"
直通车开了后多久才会搜到信息
