string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%9B%86%E6%88%90%E6%98%BE%E5%8D%A1%E5%92%8C%E7%8B%AC%E7%AB%8B%E6%98%BE%E5%8D%A1%E5%93%AA%E4%B8%AA%E5%A5%BD%E7%9F%A5%E4%B9%8E => Failed to connect to 14.18.117.71 port 38220: Connection refused"
集成显卡和独立显卡哪个好知乎
