alert( "已销假，请通知班长或文体委员！" ) window.location.replace("/out_school.php"); EOF; } elseif ($result['output'] == "DATA_ERROR") { echo << alert( "数据出错，请重试" ) window.history.go(-1); EOF; } else { echo << alert( "未知错误" ) window.history.go(-1); EOF; }