string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%83%E5%85%AB%E5%8D%81%E5%B9%B4%E4%BB%A3%E7%BE%8E%E5%9B%BD%E7%94%B5%E5%BD%B1%E5%8F%91%E5%B1%95%E7%89%B9%E7%82%B9 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
七八十年代美国电影发展特点
