string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%91%E8%86%9C%E4%BD%BF%E7%94%A8%E6%96%B9%E6%B3%95%E5%92%8C%E6%8A%A4%E5%8F%91%E7%B4%A0%E4%B8%80%E6%A0%B7%E5%90%97 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
发膜使用方法和护发素一样吗
