[BUG-fix]返回按钮提示确认,修复不能弹出的问题[CI SKIP]
[BUG-fix]返回按钮提示确认,修复不能弹出的问题[CI SKIP]

wangmingjob/OnlineJudge,wwj718/OnlineJudge,hxsf/OnlineJudge,Timeship/OnlineJudge-QDU,hxsf/OnlineJudge,uestcxl/OnlineJudge,uestcxl/OnlineJudge,Timeship/OnlineJudge-QDU,Timeship/OnlineJudge-1,Timeship/OnlineJudge-1,Timeship/OnlineJudge-1,wangmingjob/OnlineJudge,Timeship/OnlineJudge-QDU,uestcxl/OnlineJudge,Timeship/OnlineJudge-1,Timeship/OnlineJudge-QDU,wwj718/OnlineJudge,wangmingjob/OnlineJudge,wangmingjob/OnlineJudge,hxsf/OnlineJudge,hxsf/OnlineJudge,wwj718/OnlineJudge