string(237) "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%E6%98%AF%E4%BF%AE%E9%A5%B0%E5%90%8D%E8%AF%8D%E5%90%97 => Failed to connect to 14.18.46.51 port 38044: Connection refused"
副词是修饰名词吗
