string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%99%BE%E9%A2%98%E6%96%A9%E7%9C%9F%E7%9A%84%E5%BE%88%E5%A4%9A%E5%8E%9F%E9%A2%98%E5%90%97 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
百题斩真的很多原题吗
