c++课程设计源代码

c++课程设计 学生管理系统源代码
#include
#include
#include
#include
using namespace std;
typedef struct stu
{
char name[20];
long int number;
int snum;
char sex[20];
char add[30] ;
char time[20];
char tel[20];
struct stu *next;
}stu,*student;
int init(student &s);
void insert(student &s);
void print(student &s);
int delete(student &s);
void find (student &s);
void findname(student &s);
void findnum(student &s);
void modifay(student &s);
void putfile(student &s);
void getfile(student &s);

void main()
{
student s;
init(s);
cout<<"欢迎使用学生管理系统."<cout<<" "<cout<while(1)
{
int i;
mainint:
cout<<"请选择相关操作:"<cout<<"4.查询."<cin>>i;
if(i<0||i>7)
{
cout<<"输入了错误的数字,Again!"<goto mainint;
}
switch(i)
{
case 1: insert(s);break;
case 2: print(s);
putfile(s);
break;
case 3: ldelete(s);break;
case 4: find(s);break;
case 5: modifay(s);
break;
case 6: getfile(s);break;
case 7: exit(0);
}
}

}
int init(student &s)
{
s=(student)malloc(sizeof(stu));
if (s)
{
s->next=NULL;
return 0;
}
else return -1;
}
void insert(student &s) //insert
{
cout<student p,q;
p=(student)malloc(sizeof(stu));
cout<<"请输入学生信息："<cout<<"姓名:";
cin>>p->name;
cout<cout<<"学号:";
cin>>p->number;
cout<cout<<"性别:";
cin>>p->sex;
cout<cout<<"家庭住址:" ;
cin>>p->add;
cout<cout<<"出生年月:" ;
cin>>p->time;
cout<cout<<"宿舍号:";
cin>>p->snum;
cout<cout<<"宿舍号码:";
cin>>p->tel;
q=s;
while(!(q->next==NULL)&&(q->next->numbernumber))
q=q->next;
p->next=q->next;
q->next=p;
//if()p->next=NULL;
//free(p);

}
int ldelete(student &s) //delete
{
cout<student p,a;
p=s ;
cout<<"请输入删除的学号:";
long int number;
cin>>number;
while(p)
{ if (p->number==number)
{
a->next=p->next;
free(p); return(0);}
else
{ a=p;
p=p->next;} }
cout<<"没有找到你要删除的选项!"<}
void print(student &s)
{
int a;
a=0;
student p;
p=s->next;
cout<<"姓名 "<<"学号 " <<"性别 "<<"家庭住址 "<<"出生年月 "<<"宿舍号"<<"宿舍号码"<while(p)
{
a++;
cout<name<<" "<number<<" "<sex<<" "<add<<" "<time<<" "<snum<<" "<tel<<" "<p=p->next;
}
cout<if (a==0)
cout<<"还没有学生信息!"<}
void find (student &s) //find
{
findl:
cout<<"请选择查找方法:"<cout<<"请选择:";
int k;
cin>>k;
if(k<0||k>3)
{
cout<<"输了入错误数字,Again!"<goto findl;
}

switch(k)
{
case 1: findname(s);break;
case 2: findnum(s);break;
}
}

void findname(student &s) //find by name
{
student p;
p=s->next;
cout<<"请输入姓名：";
char name[20];
int j;
j=0;
cin>>name;
cout<<"你要查找的资料是:"<cout<<"姓名 "<<"学号 " <<"性别 "<<"家庭住址 "<<"出生日期 "<<"宿舍号 "<<"宿舍号码"<while(p)
{
if (strcmp(p->name,name)==0)
{
cout<name<<" "<number<<" "<sex<<" "<add<<" "<time<<" "<snum<<" "<tel<<" "<j++;
}
p=p->next;
}
cout<if(j==0)
cout<<"对不起,没找到你要的信息!"<}
void findnum(student &s) //find by number
{
student p;
p=s->next;
cout<<"请输入学号：";
long int number;
int j;
j=0;
cin>>number;
cout<<"你要查找的资料是:"<cout<<"姓名 "<<"学号 "<<"性别 "<<"家庭住址 "<<"出生日期 "<<"宿舍号 "<<"宿舍电话"<while(p)
{
if (p->number==number)
{
cout<name<<" "<number<<" "<sex<<" "<add<<" "<time<<" "<snum<<" "<tel<<" "<j++;
}
p=p->next;
}
cout<if(j==0)
cout<<"对不起,没找到你要的信息"<}
void modifay(student &s) //modifay
{
student q,p,l,m;
int j;
j=0;
q=s->next;
l=s;
m=s;
cout<<"请输入要修改的学号:" ;
long int num;
cin>>num;
cout<<"姓名 "<<"学号 "<<"性别 "<<"家庭住址 "<<"入学时间 "<<"宿舍号 "<<"电话号码"<while(q)
{
if (q->number==num)
{
cout<<"你要修改的信息是:"<cout<name<<" "<number<<" "<sex<<" "<add<<" "<time<<" "<snum<<" "<tel<<" "<j++;
p=(student)malloc(sizeof(stu));
cout<<"请输入新的学生信息:"<cout<<"姓名:";
cin>>p->name;
cout<cout<<"学号:";
cin>>p->number;
cout<cout<<"年龄:";
cin>>p->age;
cout<cout<<"性别:";
cin>>p->sex;
cout<cout<<"家庭住址:" ;
cin>>p->add;
cout<cout<<"入学时间:" ;
cin>>p->time;
cout<cout<<"电话号码:";
cin>>p->tel;
l->next=q->next;
free(q);
goto tt;
}
else
{
l=q;
q=q->next;
}
}
cout<if (j==0) cout<<"没找到你要的数据!"<tt:
while(!(m->next==NULL)&&(m->next->numbernumber))
m=m->next;
p->next=m->next;
m->next=p;
}
void putfile(student &s)
{
student p;
p=s->next;
FILE *fp;
if((fp=fopen("information.txt","w"))==NULL)
{
cout<<"打不开文件"<exit(0);
}
while(p)
{
if(fwrite(p,sizeof(struct stu),1,fp)!=1 )
{
cout<<"文件写入错误"<return;
}
p=p->next;
}
fclose(fp) ;
}
void getfile(student &s)
{
student p,q;
q=s;
FILE *fp1 ;
if((fp1=fopen("information.txt","r"))==NULL)
{
cout<<"打不开文件"<exit(0);
}
cout<<"姓名 "<<"学号 "<<"性别 "<<"家庭住址 "<<"入学时间 "<<"宿舍号 "<<"电话号码"<p=(student)malloc(sizeof(stu));
while(fread(p,sizeof(struct stu),1,fp1)!=0)
{
cout<name<<" "<number<<" "<sex<<" "<add<<" "<time<<" "<age<<" "<tel<while(!(q->next==NULL)&&(q->next->numbernumber))
q=q->next;
p->next=q->next;
q->next=p;
p=(student)malloc(sizeof(stu));
}
fclose(fp1);
cout<}

有点难啊!