string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%89%AF%E8%AF%8D%E4%BF%AE%E9%A5%B0%E5%89%AF%E8%AF%8D%E7%9A%84%E4%BD%8D%E7%BD%AE => Failed to connect to 101.89.143.195 port 38175: Connection refused"
副词修饰副词的位置
