学生信息管理系统(C++实现)
来源：互联网 发布：淘宝商品图片怎么做 编辑：程序博客网 时间：2024/06/05 08:07
吉林建筑大学大二下学期专业实习作业；
#include<iostream>#include<fstream>#include<algorithm>#include<string>#include<stdlib.h>#include<string.h>using namespace std;typedef struct StuBasic{//基本信息 int stunum;//学号 string name; string sex; string dornum;//宿舍号码 string tel;//电话(七位)}StuB;typedef struct StuResult{//成绩信息 int stunum;//学号 string counum;//课程号 string cou;//课程 float cre;//学分 float ures;//平时成绩 float tres;//实验成绩 float pres;//试卷成绩 float tolres;//总成绩 float tolcre;//总学分}StuR;StuB stub[1001];StuR stur[1001];/**函数定义**/int AddTolRes(StuR stu);//计算总成绩int AddTolCre(StuR stu);//计算总学分int InsertStuBas();//录入学生基本信息int InsertStuRes();//录入学生成绩信息int SelectAllA();//查询A.txt的内容到stub[]int SelectAllB();//查询B.txt的内容到stur[]int SelectStuBNum();//查询基本信息函数(按学号)int SelectStuDro();//查询宿舍函数int SelectStuRNum();//查询成绩(按学号)int SelectStuRAll();//查询全部int SelectStuBAll();//查询全部StuB S2Stub(string s);//从文件中取出学生基本信息并放到Stub中StuR S2Stur(string s);//从文件中取出学生成绩信息并放到Stur中int DeleteStu();//删除一个学生信息int DeleteDro(string dor);//删除一个寝室信息int UpdateStuB();//修改基本信息(按学号)int UpdateStuR();//修改成绩信息(按学号)int compare(StuR s1,StuR s2);//排序比较函数int SortStu();//排序函数int main(){ cout<<endl<<endl; cout<<" ***************欢迎访问计算机121课程设计***************"<<endl<<endl <<" ****************学生信息管理系统*******************"<<endl<<endl; string name,pwd; cout<<"请输入管理员访问账号:"; cin>>name; cout<<"请输入管理员访问密码:"; cin>>pwd; while(name!="xiaoran"||pwd!="12345"){ cout<<"账户或密码错误,请重新输入!"<<endl<<endl; cout<<"请输入管理员访问账号:"; cin>>name; cout<<"请输入管理员访问密码:"; cin>>pwd; } cout<<"输入正确,欢迎访问!"<<endl<<endl; int key; char ch; do{ cout<<" **********主菜单: **********"<<endl <<" ********** 1、录入学生信息 **********"<<endl <<" ********** 2、查询学生信息 **********"<<endl <<" ********** 3、删除学生信息 **********"<<endl <<" ********** 4、修改学生信息 **********"<<endl <<" ********** 5、排序学生信息 **********"<<endl <<" ********** 0、退出系统 **********"<<endl<<endl; cout<<"输入访问序号:"; cin>>key; while(key<0&&key>5){ cout<<"输入错误,请重新输入:"; cin>>key; } if(key==0) break; switch (key){ case 1://1、录入学生信息 do{ cout<<" 1.录入学生基本信息"<<endl; cout<<" 2.录入学生成绩信息"<<endl; int key1; cout<<"请选择:"; cin>>key1; while(key1!=1&&key1!=2){ cout<<"输入错误,请重新输入:"; cin>>key1; } switch (key1){ case 1: InsertStuBas(); break; case 2:{ InsertStuRes(); break; } default : break; } cout<<"输入y继续当前操作,输入n(或其他)返回上一层:"; cin>>ch; }while(ch=='y'); break; case 2:{//2、查询学生信息 do{ cout<<" 1.查询学生基本信息(支持学号和寝室)"<<endl; cout<<" 2.查询学生成绩信息(只支持学号查询)"<<endl; int key1; cout<<"请选择:"; cin>>key1; while(key1!=1&&key1!=2){ cout<<"输入错误,请重新输入:"; cin>>key1; } switch (key1){ case 1:{ do{ cout<<" 1.按学号查询"<<endl; cout<<" 2.按寝室号查询"<<endl; cout<<" 3.查询全部"<<endl; int key1; cout<<"请选择:"; cin>>key1; while(key1!=1&&key1!=2&&key1!=3){ cout<<"输入错误,请重新输入:"; cin>>key1; } switch (key1){ case 1: SelectStuBNum(); break; case 2: SelectStuDro(); break; case 3: SelectStuBAll(); break; default :break; } cout<<"输入y继续当前操作,输入n(或其他)返回上一层,0返回主菜单:"; cin>>ch; }while(ch=='y'); break; } case 2:{ do{ cout<<" 1.按学号查询"<<endl; cout<<" 2.查询全部"<<endl; int key1; cout<<"请选择:"; cin>>key1; while(key1!=1&&key1!=2){ cout<<"输入错误,请重新输入:"; cin>>key1; } switch (key1){ case 1: SelectStuRNum(); break; case 2: SelectStuRAll(); break; default :break; } cout<<"输入y继续当前操作,输入n(或其他)返回上一层,0返回主菜单:"; cin>>ch; }while(ch=='y'); break; } default : break; } }while(ch=='n'); break; } case 3:{ char c; do{ DeleteStu(); cout<<"输入y继续当前操作,输入n返回主菜单:"; cin>>c; }while(c=='y'); break; } case 4://1、修改学生信息 do{ cout<<" 1.修改学生基本信息"<<endl; cout<<" 2.修改学生成绩信息"<<endl; int key1; cout<<"请选择:"; cin>>key1; while(key1!=1&&key1!=2){ cout<<"输入错误,请重新输入:"; cin>>key1; } switch (key1){ case 1: UpdateStuB(); break; case 2:{ UpdateStuR(); break; } default : break; } cout<<"输入y继续当前操作,输入n(或其他)返回上一层:"; cin>>ch; }while(ch=='y'); break; case 5:{ SortStu(); getchar(); getchar(); break; } case 0: break; } }while(key||ch=='0'); return 0;}int InsertStuBas(){ fstream afile; int n,i; cout<<"请输入学生个数:"; cin>>n; for(i=0;i<n;i++){ cout<<"输入学号:"; cin>>stub[i].stunum; cout<<"输入姓名:"; cin>>stub[i].name; cout<<"输入性别:"; cin>>stub[i].sex; cout<<"输入寝室号:"; cin>>stub[i].dornum; cout<<"输入电话:"; cin>>stub[i].tel; } for(i=0;i<n;i++){ afile.open("A.txt",ios::in|ios::out|ios::app);//读写、追加的方式写入文件 afile<<stub[i].stunum<<" "<<stub[i].name<<" " <<stub[i].sex<<" "<<stub[i].dornum<<" " <<stub[i].tel<<endl; afile.close();//关闭文件 afile.clear();//清空文件流 } return 0;}int InsertStuRes(){ fstream bfile; //s.c_str(); //infile.open("B.txt",ios::in||ios::out|ios::app); int n,i; cout<<"请输入学生个数:"; cin>>n; for(i=0;i<n;i++){ cout<<"输入学号:"; cin>>stur[i].stunum; cout<<"输入课程号:"; //string counum;//课程号 cin>>stur[i].counum; cout<<"输入课程:"; //string cou;//课程 cin>>stur[i].cou; cout<<"输入学分:"; //int cre;//学分 cin>>stur[i].cre; cout<<"输入平时成绩:"; //int ures;//平时成绩 cin>>stur[i].ures; cout<<"输入实验成绩:"; //int tres;//实验成绩 cin>>stur[i].tres; cout<<"试卷成绩:"; //int pres;//试卷成绩 cin>>stur[i].pres; float tolres;//总成绩 float tolcre;//总学分 if(stur[i].tres==-1){ tolres=stur[i].pres*0.7+stur[i].ures*0.3; }else{ tolres=stur[i].pres*0.7+stur[i].ures*0.15+stur[i].tres*0.15; } stur[i].tolres=tolres; //cout<<stur[i].tolres<<endl; if(tolres>=90&&tolres<=100){ tolcre=stur[i].cre; }else if(tolres>=80&&tolres<90){ tolcre=stur[i].cre*0.8; }else if(tolres>=70&&tolres<80){ tolcre=stur[i].cre*0.75; }else if(tolres>=60&&tolres<70){ tolcre=stur[i].cre*0.6; }else{ tolcre=0; } stur[i].tolcre=tolcre; //cout<<stur[i].tolcre<<endl; } for(i=0;i<n;i++){ bfile.open("B.txt",ios::in|ios::out|ios::app);//读写、追加的方式写入文件 bfile<<stur[i].stunum<<" "<<stur[i].counum<<" " <<stur[i].cou<<" "<<stur[i].cre<<" " <<stur[i].ures<<" "<<stur[i].tres<<" " <<stur[i].pres<<" "<<stur[i].tolres<<" " <<stur[i].tolcre<<endl; bfile.close(); bfile.clear(); } return 0;}StuB S2Stub(string s){ StuB stub; string stemp[10]; int k=0; for(int i=0;i<s.size();i++){ if(s[i]!=' '){ stemp[k]+=s[i]; }else{ ++k; } } stub.stunum=atoi(stemp[0].c_str()); stub.name=stemp[1]; stub.sex=stemp[2]; stub.dornum=stemp[3]; stub.tel=stemp[4]; return stub;}StuR S2Stur(string s){ StuR stur; string stemp[10]; int k=0; for(int i=0;i<s.size();i++){ if(s[i]!=' '){ stemp[k]+=s[i]; }else{ ++k; } } stur.stunum=atoi(stemp[0].c_str()); stur.counum=stemp[1]; stur.cou=stemp[2]; stur.cre=atof(stemp[3].c_str()); stur.ures=atof(stemp[4].c_str()); stur.tres=atof(stemp[5].c_str()); stur.pres=atof(stemp[6].c_str()); stur.tolres=atof(stemp[7].c_str()); stur.tolcre=atof(stemp[8].c_str()); return stur;}int SelectStuBNum()//查询基本信息函数(按学号){ //StuB stb[50]; int k=SelectAllA();//读A文件到内存 int num; cout<<"请输入查询学号:"; cin>>num; cout<<" 学号 "<<" 姓名 "<<" 性别 "<<" 寝室 "<<" 电话 "<<endl; //cout<<" 学号 "<<" 姓名 "<<" 性别 "<<" 寝室 "<<" 电话 "<<endl; int ok=0; for(int i=0;i<k;i++){ if(stub[i].stunum==num){ ok=1; cout<<" "<<stub[i].stunum<<" "; cout<<" "<<stub[i].name<<" "; cout<<" "<<stub[i].sex<<" "; cout<<" "<<stub[i].dornum<<" "; cout<<" "<<stub[i].tel<<endl; break; } } if(ok==0) cout<<" 不存在这个人,请查对后在输入!"<<endl; return 0;}int SelectStuDro()//查询宿舍函数{ //StuB stb[50]; int k=SelectAllA();//读A文件到内存 string s1; cout<<"请输入查询寝室号:"; cin>>s1; cout<<" 学号 "<<" 姓名 "<<" 性别 "<<" 寝室 "<<" 电话 "<<endl; //cout<<" 学号 "<<" 姓名 "<<" 性别 "<<" 寝室 "<<" 电话 "<<endl; int ok=0; for(int i=0;i<k;i++){ if(stub[i].dornum==s1){ ok=1; cout<<" "<<stub[i].stunum<<" "; cout<<" "<<stub[i].name<<" "; cout<<" "<<stub[i].sex<<" "; cout<<" "<<stub[i].dornum<<" "; cout<<" "<<stub[i].tel<<endl; } } if(ok==0) cout<<" 不存在这个寝室,请查对后在输入!"<<endl; return 0;}int SelectStuBAll()//查询所有基本信息{ //StuB stb[50]; int k=SelectAllA();//读A文件到内存 cout<<" 学号 "<<" 姓名 "<<" 性别 "<<" 寝室 "<<" 电话 "<<endl; for(int i=0;i<k;i++){ cout<<" "<<stub[i].stunum<<" "; cout<<" "<<stub[i].name<<" "; cout<<" "<<stub[i].sex<<" "; cout<<" "<<stub[i].dornum<<" "; cout<<" "<<stub[i].tel<<endl; } return 0;}int SelectStuRNum()//查询成绩(按学号){ //StuR str[50]; int k=SelectAllB(); int num; cout<<"请输入查询学号:"; cin>>num; cout<<" 学号"<<" 课程号"<<" 课程"<<" 学分" <<" 平时成绩"<<" 实验成绩"<<" 试卷成绩" <<" 总成绩"<<" 总学分"<<endl; int ok=0; for(int i=0;i<k;i++){ if(num==stur[i].stunum){ ok=1; cout<<" "<<stur[i].stunum<<" "; cout<<" "<<stur[i].counum<<" "; cout<<" "<<stur[i].cou<<" "; cout<<" "<<stur[i].cre<<" "; cout<<" "<<stur[i].ures<<" "; cout<<" "<<stur[i].tres<<" "; cout<<" "<<stur[i].pres<<" "; cout<<" "<<stur[i].tolres<<" "; cout<<" "<<stur[i].tolcre<<endl; } //break; } if(ok==0) cout<<" 不存在这个人,请查对后在输入!"<<endl; return 0;}int SelectStuRAll()//查询所有{ //StuR str[50]; int k=SelectAllB(); cout<<" 学号"<<" 课程号"<<" 课程"<<" 学分" <<" 平时成绩"<<" 实验成绩"<<" 试卷成绩" <<" 总成绩"<<" 总学分"<<endl; for(int i=0;i<k;i++){ cout<<" "<<stur[i].stunum<<" "; cout<<" "<<stur[i].counum<<" "; cout<<" "<<stur[i].cou<<" "; cout<<" "<<stur[i].cre<<" "; cout<<" "<<stur[i].ures<<" "; cout<<" "<<stur[i].tres<<" "; cout<<" "<<stur[i].pres<<" "; cout<<" "<<stur[i].tolres<<" "; cout<<" "<<stur[i].tolcre<<endl; //break; } return 0;}int SelectAllA(){ fstream afile("A.txt"); int k=0; string s; while(getline(afile,s)){ stub[k++]=S2Stub(s); //cout<<S2Stub(s).stunum<<endl; //cout<<stb[k-1].stunum<<endl; } return k;}int SelectAllB(){ fstream bfile("B.txt"); int k=0; string s; while(getline(bfile,s)){ stur[k++]=S2Stur(s); //cout<<str[k-1].stunum<<endl; } return k;}int DeleteStu(){ int num; cout<<"请输入删除的学号:"; cin>>num; int k1=SelectAllA(); int k2=SelectAllB(); fstream afile; fstream bfile; afile.open("A.txt",ios::out);//写的方式写入文件 for(int i=0;i<k1;i++){ //cout<<stub[i].stunum<<endl; if(stub[i].stunum!=num){ afile<<stub[i].stunum<<" "<<stub[i].name<<" " <<stub[i].sex<<" "<<stub[i].dornum<<" " <<stub[i].tel<<endl; } } afile.close();//关闭文件 afile.clear();//清空文件流 bfile.open("B.txt",ios::out);//读写的方式写入文件 for(int i=0;i<k2;i++){ //cout<<stur[i].stunum<<endl; if(stur[i].stunum!=num){ bfile<<stur[i].stunum<<" "<<stur[i].counum<<" " <<stur[i].cou<<" "<<stur[i].cre<<" " <<stur[i].ures<<" "<<stur[i].tres<<" " <<stur[i].pres<<" "<<stur[i].tolres<<" " <<stur[i].tolcre<<endl; } } bfile.close(); bfile.clear(); cout<<"删除成功!"<<endl; return 0;}int compare(StuR s1,StuR s2)//排序比较函数{ if(s1.tolres>s2.tolres) return 1; else return 0;}int SortStu()//排序函数(总成绩)){ int k2=SelectAllB(); fstream bfile; sort(stur,stur+k2,compare); bfile.open("B.txt");//读写、追加的方式写入文件 for(int i=0;i<k2;i++){ bfile<<stur[i].stunum<<" "<<stur[i].counum<<" " <<stur[i].cou<<" "<<stur[i].cre<<" " <<stur[i].ures<<" "<<stur[i].tres<<" " <<stur[i].pres<<" "<<stur[i].tolres<<" " <<stur[i].tolcre<<endl; } bfile.close(); bfile.clear(); cout<<"排序完成,按回车返回主菜单!"; return 0;}int UpdateStuB(){ int num; cout<<"请输入修改的学号:"; cin>>num; int k1=SelectAllA(); //int k2=SelectAllB(); fstream afile; //fstream bfile; afile.open("A.txt",ios::out);//读写的方式写入文件 for(int i=0;i<k1;i++){ //cout<<stub[i].stunum<<endl; if(stub[i].stunum==num){ /** cout<<"输入学号:"; cin>>stub[i].stunum; **/ cout<<"输入姓名:"; string name; cin>>name; stub[i].name=name; cout<<"输入性别:"; string sex; cin>>sex; stub[i].sex=sex; cout<<"输入寝室号:"; string dornum; cin>>dornum; stub[i].dornum=num; cout<<"输入电话:"; string tel; cin>>tel; stub[i].tel=tel; } afile<<stub[i].stunum<<" "<<stub[i].name<<" " <<stub[i].sex<<" "<<stub[i].dornum<<" " <<stub[i].tel<<endl; } cout<<"修改成功！"<<endl; afile.close();//关闭文件 afile.clear();//清空文件流 return 0;}int UpdateStuR(){ int num; cout<<"请输入修改的学号:"; cin>>num; //int k1=SelectAllA(); int k2=SelectAllB(); //fstream afile; fstream bfile; bfile.open("B.txt",ios::out);//读写的方式写入文件 for(int i=0;i<k2;i++){ //cout<<stur[i].stunum<<endl; if(stur[i].stunum==num){ /** cout<<"输入学号:"; cin>>stur[i].stunum; **/ cout<<"输入课程号:"; string counum;//课程号 cin>>counum; stur[i].counum=counum; cout<<"输入课程:"; string cou;//课程 cin>>cou; stur[i].cou=cou; cout<<"输入学分:"; float cre;//学分 cin>>cre; stur[i].cre=cre; cout<<"输入平时成绩:"; float ures;//平时成绩 cin>>ures; stur[i].ures=ures; cout<<"输入实验成绩:"; float tres;//实验成绩 cin>>tres; stur[i].tres=tres; cout<<"试卷成绩:"; float pres;//试卷成绩 cin>>pres; stur[i].pres=pres; float tolres;//总成绩 float tolcre;//总学分 if(stur[i].tres==-1){ tolres=stur[i].pres*0.7+stur[i].ures*0.3; }else{ tolres=stur[i].pres*0.7+stur[i].ures*0.15+stur[i].tres*0.15; } stur[i].tolres=tolres; //cout<<stur[i].tolres<<endl; if(tolres>=90&&tolres<=100){ tolcre=stur[i].cre; }else if(tolres>=80&&tolres<90){ tolcre=stur[i].cre*0.8; }else if(tolres>=70&&tolres<80){ tolcre=stur[i].cre*0.75; }else if(tolres>=60&&tolres<70){ tolcre=stur[i].cre*0.6; }else{ tolcre=0; } stur[i].tolcre=tolcre; } bfile<<stur[i].stunum<<" "<<stur[i].counum<<" " <<stur[i].cou<<" "<<stur[i].cre<<" " <<stur[i].ures<<" "<<stur[i].tres<<" " <<stur[i].pres<<" "<<stur[i].tolres<<" " <<stur[i].tolcre<<endl; } cout<<"修改成功！"<<endl; bfile.close(); bfile.clear(); return 0;} 0 0
- 学生信息管理系统C实现
- C语言实现学生信息管理系统
- ｃ语言实现的学生信息管理系统
- C语言实现一个学生信息管理系统
- C语言实现学生信息管理系统
- 学生信息管理系统（C实现）
- C语言数组实现学生信息管理系统
- C语言实现 学生信息管理系统
- C#-学生信息管理系统
- 学生信息管理系统(C++)
- 学生信息管理系统(c/c++)
- C语言学生信息管理系统
- c语言学生信息管理系统
- 学生信息管理系统（c++）
- 学生信息管理系统 c语言
- object c 学生信息管理系统
- 学生成绩信息管理系统(c++)
- C语言：学生信息管理系统
- IBatis查询条件为多个参数时如何配置
- PHP flush()与ob_flush()的区别详解
- 1152 - 4 Values whose Sum is 0(好用的hash标记，多重循环简单化)
- java判断字符串是否为数字或中文或字母
- 关于Xcode5中使用脚本自动生成Doxygen注释在OS X 10.9中bug的解决
- 学生信息管理系统(C++实现)
- powerdesigner中怎么给一主键设为自增型auto_increment.
- hadoop mr数据流总结
- PHP传数组给js
- No resource found that matches the given name 'android:Theme.Holo.Light'解决方法
- 【1247】海选女主角 sdutOJ
- 字典树+并查集Virtual Friends HDU 3172（900MS）
- easyui中遇到的小问题以及jquery知识点
- 清河好程序员训练营是什么？
