string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AD%A6%E9%9C%B8%E8%AE%B0%E7%9A%84%E7%AC%94%E8%AE%B0%E5%9B%BE%E7%89%87 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
学霸记的笔记图片
