string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E8%AF%B4%E6%B3%A8%E4%BC%9A%E5%BE%88%E9%9A%BE => Failed to connect to 101.89.117.144 port 38022: Connection refused"
为什么说注会很难
