#include "conio.h"
#include "malloc.h"
#include "stdio.h"
#define back textbackground
struct student
{int num;
char name[8];
float c_program;
float english;
float total;
float avg;
struct student *next;};
typedef struct student stu;
int first=1;
int dqx=1;
stu *head,*wei;
FILE *fp;
char filename[30];
char a[]="新建",b[]="打开",c[]="保存",d[]="添加",e[]="显示",f[]="查找_学号",
g[]="查找_分数",h[]="排序_学号",i[]="排序_分数",j[]="删除",k[]="退出";
void clsuser()
{window(1,1,64,25);
back(0);
textcolor(7);
clrscr();
}
void winone(int qian,int bei,int xiang)
{window(65,5+xiang,79,5+xiang);
back(bei);
textcolor(qian);
clrscr();
switch(xiang)
{case 1: cprintf("%s",a); break;
case 2: cprintf("%s",b); break;
case 3: cprintf("%s",c); break;
case 4: cprintf("%s",d); break;
case 5: cprintf("%s",e); break;
case 6: cprintf("%s",f); break;
case 7: cprintf("%s",g); break;
case 8: cprintf("%s",h); break;
case 9: cprintf("%s",i); break;
case 10: cprintf("%s",j); break;
case 11: cprintf("%s",k); break;}
}
void createuser()
{int ii;
for (ii=0;ii<30;ii++)
filename[ii]='\0';
clsuser();
window(10,10,50,10);
back(4);
textcolor(7);
clrscr();
cprintf("请输入新建学生库名:");
scanf("%s",filename);
fp=fopen(filename,"w+");
}
void wintwo(l1,h1,l2,h2)
{window(l1,h1,l2,h2);
back(4);
textcolor(7);
clrscr();
}
void openuser()
{stu *zhen;
int ii;
for (ii=0;ii<30;ii++)
filename[ii]='\0';
if (fp!=NULL)
fclose(fp);
clsuser();
wintwo(10,10,50,10);
cprintf("输入要打开的学生库名:");
scanf("%s",filename);
fp=fopen(filename,"r+");
if (fp==NULL)
{wintwo(15,12,36,12);
cprintf("File not find!");}
else
{wei=(stu *)malloc(sizeof(stu));
head=NULL;
head=zhen=wei;
do
{fread(wei,sizeof(stu),1,fp);
if (feof(fp)) break;
wei->next=(stu *)malloc(sizeof(stu));
zhen=wei;
wei=wei->next;} while (!feof(fp));
wei=zhen;
wei->next=NULL;
rewind(fp);
first=0;}
}
void saveuser()
{stu *zhen;
int ii;
zhen=wei=head;
if (fp!=NULL)
{fclose(fp);
if (remove(filename)!=0)
printf("保存文件可能失败！");
fp=fopen(filename,"w+");
while(wei!=NULL)
{fwrite(wei,sizeof(stu),1,fp);
zhen=wei;
wei=wei->next;}
wei=zhen;
fclose(fp);
fp=fopen(filename,"r+"); }
}
void adduser()
{int l1=2,h1=2,l2=4,h2=2;
float nn;
int ii;
char cchh[8];
char hc;
clsuser();
while(1)
{wintwo(l1+5,h1,l2+9,h2);
wintwo(l1+5+9,h1,l2+5+9,h2);
wintwo(l1+14+5,h1,l2+14+5,h2);
wintwo(l1+19+5,h1,l2+19+8,h2);
wintwo(l1+24+8,h1,l2+24+10,h2);
wintwo(l1,h1,l2,h2);
if (first==1)
{first=0;
head=NULL;
wei=(stu *)malloc(sizeof(stu));
head=wei;}
else
{wei->next=(stu *)malloc(sizeof(stu));
wei=wei->next;}
while(1)
{switch(l1)
{case 2: scanf("%d",&wei->num);l1=l1+5;l2=l2+5;wintwo(l1,h1,l2,h2); break;
case 7: scanf("%s",wei->name);l1=l1+9;l2=l2+9;wintwo(l1,h1,l2,h2); break;
case 16: scanf("%f",&nn);wei->c_program=nn; l1=l1+5;l2=l2+5;wintwo(l1,h1,l2,h2);break;
case 21: scanf("%f",&nn);wei->english=nn; l1=l1+5;l2=l2+8;wintwo(l1,h1,l2,h2); break; }
if (l1==26) break;}
wei->total=wei->c_program+wei->english;
cprintf("%5.1f",wei->total);
l1=l1+8; l2=l2+10;
wintwo(l1,h1,l2,h2);
wei->avg=wei->total/2;
cprintf("%5.1f",wei->avg);
wintwo(43,h1,60,h2);
cprintf("回车继续,其他退出");
hc=getch();
if (hc==13)
{h1++;
h2++;
l1=2;l2=4;}
else
break;
}
wei->next=NULL;
}
void shuchu(stu *sc)
{cprintf("%4d",sc->num);
cprintf("%8s",sc->name);
cprintf("%5.1f",sc->c_program);
cprintf("%5.1f",sc->english);
cprintf("%5.1f",sc->total);
cprintf("%5.1f",sc->avg);
}
void xianshiuser()
{stu *xs;
int h1=1,h2=1;
xs=head;
clsuser();
while(xs!=NULL)
{wintwo(1,h1,55,h2);
h1++;
h2++;
shuchu(xs);
xs=xs->next;
if (h1>=25)
{wintwo(45,25,60,25);
cprintf("pree any key");
getch();
wintwo(1,1,64,25);
h1=h2=1;} }
}
void numsearch()
{int start,end,ii;
stu *zhen;
zhen=head;
clsuser();
wintwo(10,5,30,5);
cprintf("查找的学号from:");
scanf("%d",&start);
wintwo(32,5,40,5);
cprintf("to:");
scanf("%d",&end);
window(1,1,64,25);
back(0);
textcolor(7);
clrscr();
if (start>end)
{wintwo(10,7,19,7);
cprintf("not find");}
else
{while(zhen!=NULL)
{if (zhen->num>=start && zhen->num<=end)
{ii=1; cprintf("\n\r"); shuchu(zhen);}
zhen=zhen->next; } }
if (ii==0)
{wintwo(10,7,19,7);
cprintf("not find");}
}
void fensearch()
{stu *zhen;
wintwo(1,1,25,1);
clsuser();
cprintf("平均分<60如下:");
zhen=head;
while(zhen!=NULL)
{cprintf("\n\r");
if (zhen->num<60)
shuchu(zhen);
zhen=zhen->next;}
}
void numsort()
{stu *head2,*zhen,*p2,*min,*zhen2;
int nn=0;
clsuser();
while(head!=NULL)
{ zhen=min=wei=head;
while(wei->next!=NULL)
{zhen2=wei;
wei=wei->next;
if (min->num>wei->num)
{zhen=zhen2; min=wei;} }
if (nn==0)
{head2=p2=min;
if (head==min)
head=min->next;
else
zhen->next=wei->next;
p2->next=NULL;
nn=1;}
else
{if (head==min)
{p2->next=head;
head=min->next;
p2=p2->next;
p2->next=NULL; }
else
{p2->next=min;
zhen->next=min->next;
p2=p2->next;
p2->next=NULL; } }
printf("1");
}
printf("2222");
p2->next=NULL;
head=head2;
}
void fensort()
{stu *head2,*zhen,*p2,*min,*zhen2,*zhen3;
int nn=0;
clsuser();
while(head!=NULL)
{ zhen=min=wei=head;
while(wei->next!=NULL)
{zhen2=wei;
wei=wei->next;
if (min->avg>wei->avg)
{zhen=zhen2; min=wei;} }
if (nn==0)
{head2=p2=min;
if (head==min)
head=min->next;
else
zhen->next=min->next;
p2->next=NULL;
nn=1;}
else
{if (head==min)
{p2->next=head;
head=min->next;
p2=p2->next;
p2->next=NULL; }
else
{p2->next=min;
zhen->next=min->next;
p2=p2->next;
p2->next=NULL; } }
printf("1");
}
printf("2222");
p2->next=NULL;
head=head2;
}
void del()
{int del;
stu *zhen,*p2;
p2=zhen=head;
zhen=zhen->next;
clsuser();
wintwo(10,5,30,5);
cprintf("输入要删的学号:");
scanf("%d",&del);
if (head!=NULL)
{zhen=head;
while(del!=zhen->num && zhen->next!=NULL)
{p2=zhen; zhen=zhen->next;} }
if (del==zhen->num)
{if (zhen==head)
{head=zhen->next;
free(p2); }
else
p2->next=zhen->next; }
}
void select()
{char cc;
while(1)
{cc=getch();
if (cc==27) break;
if (cc==13)
{switch(dqx)
{case 1: createuser();break;
case 2: openuser(); break;
case 3: saveuser(); break;
case 4: adduser(); break;
case 5: xianshiuser(); break;
case 6: numsearch(); break;
case 7: fensearch(); break;
case 8: numsort(); break;
case 9: fensort(); break;
case 10: del(); break;
case 11: if (fp!=NULL) fclose(fp); exit(0);}}
if (cc==0)
{cc=getch();
if (cc==72)
if (dqx>1)
{winone(15,1,dqx);
dqx--;
winone(1,15,dqx);}
if (cc==80)
if (dqx<11)
{winone(15,1,dqx);
dqx++;
winone(1,15,dqx);} }
}
}
void caidan()
{int ii;
for (ii=2;ii<=11;ii++)
winone(7,1,ii);
winone(1,7,1);
}
void main()
{window(1,1,80,25);
back(0);
clrscr();
caidan();
select();
}
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