string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%89%E5%A4%A7%E7%BB%8F%E5%85%B8%E7%A4%BE%E4%BC%9A%E5%AD%A6%E5%AE%B6%E7%9A%84%E5%A4%A7%E8%87%B4%E6%80%9D%E6%83%B3 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
三大经典社会学家的大致思想
