string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9D%E7%BA%A7%E5%8F%AF%E4%BB%A5%E9%80%80%E6%8A%A5%E5%90%8D%E8%B4%B9%E4%B9%88%E5%90%97 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
初级可以退报名费么吗
