string(284) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%AE%89%E6%B2%A1%E8%80%83%E8%BF%87%E7%AC%AC%E4%BA%8C%E5%B9%B4%E5%86%8D%E8%80%83%E6%94%B6%E8%B4%B9%E4%B9%88 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
注安没考过第二年再考收费么
