string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%A4%E4%B8%AAc%E7%9B%B8%E6%89%A3%E6%98%AF%E4%BB%80%E4%B9%88%E7%89%8C%E5%AD%90%E7%9A%84 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
两个c相扣是什么牌子的
