string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=1000%E5%85%86%E5%AE%BD%E5%B8%A6%E6%9C%89%E5%BF%85%E8%A6%81wifi6%E5%90%97 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
1000兆宽带有必要wifi6吗
