string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E4%BC%9A%E8%BF%87%E4%BA%86%E5%85%AD%E9%97%A8%E8%BF%98%E6%9C%89%E6%97%B6%E9%97%B4%E9%99%90%E5%88%B6%E5%90%97 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
注会过了六门还有时间限制吗
