string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%B9%E7%AD%BE%E4%B9%8B%E5%90%8E%E4%BC%9A%E9%80%80%E9%92%B1%E5%9B%9E%E6%9D%A5%E5%90%97 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
改签之后会退钱回来吗
