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%E5%89%AF%E8%AF%8D%E4%B8%BE%E4%B8%80%E4%B8%AA%E4%BE%8B%E5%AD%90 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
副词修饰副词举一个例子
