学生成绩管理系统(含OO版).zip

#include <iostream> using namespace std; int modecout; struct Student { char mode[20]; char name[10]; int mark[60]; }; Student students[500]; int find(char mode[20]) { int i; for(i=0;i<modecout;i++) { if(strcmp(students[i].mode,mode)==0) break; } return i; } void list(int k,char kemu[60][10]) { int i; if(modecout==0){cout<<"没有学生记录"<<endl;} else { cout<<"学号\t"<<"姓名\t"; for(i=0;i<k;i++) { if(i==(k-1)) { cout<<kemu[i]<<endl; } else { cout<<kemu[i]<<"\t"; } } for(i=0;i<modecout;i++) { cout<<students[i].mode<<"\t"; cout<<students[i].name<<"\t"; for(int j=0;j<k;j++) { if(j==(k-1)) { cout<<students[i].mark[j]<<endl; } else { cout<<students[i].mark[j]<<"\t"; } } } } } void choose() { int i; Student student1; cout<<"学号：";cin>>student1.mode; cout<<"姓名：";cin>>student1.name; i=find(student1.mode); if(i==modecout) { for (int j= 0;j< 10;j++) { students[i].mode[j]=student1.mode[j]; students[i].name[j]=student1.name[j]; } } else { cout<<"此学生已存在"<<endl; modecout--; } modecout++; } void drop() { int i ; Student student2; cout<<"学号:";cin>>student2.mode; i=find(student2.mode); if (i==modecout) { cout<<"此学生不存在"<<endl; } else { for(i=find(student2.mode);i<(modecout-1);i++) { for(int j=0;j<60;j++) { students[i].mode[j]=students[i+1].mode[j]; students[i].name[j]=students[i+1].name[j]; students[i].mark[j]=students[i+1].mark[j]; } } modecout--; } } void luru(int k,char kemu[60][10],int h,int g) { char mode1[20]; int l,i; if(h==0) { cout<<"请输入一个学号:";cin>>mode1; g=find(mode1); if(g==modecout) { cout<<"此学生不存在"<<endl; } } if(g!=modecout) { cout<<"请输入各科成绩"<<endl; for(int j=0;j<k;j++) { cout<<kemu[j]<<":";cin>>students[g].mark[j]; } cout<<"是否继续进行，是则输入1，否则输入0"<<endl;cin>>l; if(l==1) { g++;h++; luru(k,kemu, h,g); } else if(l!=0) { cout<<"您输入了个不正确的数字"<<endl; } } else { if(h!=0) {cout<<"到尾了，没有学生了"<<endl;} } } int main() { int k; modecout=0; char kemu[60][10]; cout<<"此程序用来记录学生考试，请输入您所需要记录的课程数和具体课程"<<endl; cout<<"课程数:";cin>>k; for (int u=0;u<k;u++) { cout<<"课程名:";cin>>kemu[u]; } cout<<"1)查看学生名单"<<endl; cout<<"2)选课"<<endl; cout<<"3)退选"<<endl; cout<<"4)录入成绩"<<endl; cout<<"5)退出程序"<<endl; do { int n; cin>>n; switch(n) { case 1: list(k,kemu); break; case 2: choose(); break; case 3: drop(); break; case 4: luru(k,kemu,0,0); break; case 5: exit(0); default: cout<<"您输入个错误的数字"<<endl; } }while(1); }