string(267) "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%E4%BB%80%E4%B9%88%E6%9C%89%E4%BB%80%E4%B9%88%E4%BD%9C%E7%94%A8 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
副词修饰什么有什么作用
