1#include<iostream>2#include<fstream>3#include<string>4usingnamespacestd;5classcard{6//属性7public:8stringname;9intid;10stringclassroom;11floatmoney

#include<iostream>#include<windows.h>#include<fstream>usingnamespacestd;structcard{ //属性 stringname; intid; stringclassroom; floatmoney=0; stringcreat_time; boolgua=0;//是否挂失 //方法 //开卡 boolcreat(inti,stringn,s

#include<iostream>#include<vector>usingnamespacestd;#definelist1000structa{stringname;intid;intage;stringClass;}index;voidMAIN(){cout<<"欢迎使用学生管理系统"<<endl<<"1.

#include<iostream>#include<vector>#include<windows.h>usingnamespacestd;inta=999;intb=0;boolc=false;structstudent{stringname;intage;intcard;intgrade;}s;voidka(){cout

#include<iostream>#include<vector>#include<windows.h>usingnamespacestd;inta=999;intb=0;boolc=false;structstudent{stringname;intage;intcard;intgrade;}s;voidka(){cout<<"学生管理系统:"&

#include<iostream>#include<vector>#include<windows.h>usingnamespacestd;inta=999;structstudent{stringname;intage;intcard;intcroom;}s;voidxitong(){cout<<"学生管理系统:"<<endl;co

#include<iostream>#include<vector>#include<windows.h>usingnamespacestd;inta=999;structstudent{ stringname; intage; intcard; intgrade;}s;voidka(){ cout<<"学生管理系统:"<<endl; cout<<"1.新建学生

#include<iostream>#include<bits/stdc++.h>usingnamespacestd;structcard{ //属性 stringname; intid; stringclassroom; floatmoney; intmoney_type; stringcreat_time; //方法 //开卡 boolcreat(inti,stringn,stringc){ name=n;

#include<iostream>usingnamespacestd;structcard{ stringname; intid; intmoney; boolbuild_card(intx_id,stringx_name){ name=x_name; id=x_id; returntrue; } boolchong(intx_money){ money+=x_money; returntrue; } boolhua(int

饭卡TimeLimit:5000/1000MS(Java/Others)    MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):16574    AcceptedSubmission(s):5763ProblemDescription电子科大本部食堂的饭卡有一种很诡异的设计，即在购买之前判断余额。如果购买一个商

springboot开发的大学生饭卡系统，学生可以登录该系统充值饭卡，挂失饭卡，取消挂失，查看自己的所有饭卡，以及发卡的充值记录。超级管理员拥有最大的权限，饭卡管理员可以添加饭卡信

题目链接：​​传送门​​题面：ProblemDescription电子科大本部食堂的饭卡有一种很诡异的设计，即在购买之前判断余额。如果购买一个商品之前，卡上的剩余金额大于或等于5元，就一