string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B7%98%E6%B0%94%E5%80%BC%E6%98%AF%E9%A9%AC%E4%B8%8A%E5%A2%9E%E5%8A%A0%E7%9A%84%E5%90%97 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
淘气值是马上增加的吗
