string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%AC%94%E8%AE%B0%E6%9C%AC%E5%85%B3%E6%9C%BA%E7%9A%84%E6%97%B6%E5%80%99%E8%A6%81%E6%8B%94%E6%8E%89%E7%94%B5%E6%BA%90%E5%90%97%E4%B8%BA%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
笔记本关机的时候要拔掉电源吗为什么
