00.cpp

学生信息管理系统

key=get_key();
while(key!=key_alt_x && key!=key_esc)
{
window(1,2,80,25);
textbackground(BLUE);
clrscr();
new1=new2=(struct student *)malloc(sizeof(struct student));
if(head==NULL)
head=new1;
else
{ this1=head;
while(this1->next!=NULL)
this1=this1->next;
this1->next=new1;
}
this1=new1;
printf("\nRecord%d:",n+1);
printf("\nXing Ming:");
gets(&a);
gets(this1->name);
printf("\nXue Hao:");
gets(numstr);
this1->num=atol(numstr);
printf("\nNian Ling:");
gets(this1->age);
printf("\nXing Bie:");
gets(this1->sex);
printf("\nXue Yuan:");
gets(this1->xibie);
printf("\nJi Guan:");
gets(this1->jiguan);
n++;
this1->next=NULL;
printf("Are you sure input :Y/N?");
if(getch()=='n')
main();
else
new1name();
}
main();
}
/*listallhanshuyonglaishuchuquanburenyuandejilu*/
void listall(void)
{
int i=0;
window(1,2,80,25);
textbackground(1);
textcolor(0);
clrscr();
if(head==NULL)
{cprintf("\nempty list .\n");return;
}
this1=head;

do
{ cprintf("\nrecord number %d\n",++i);
cprintf(" name:%s",this1->name);
cprintf(" number:%ld",this1->num);
cprintf(" age:%s",this1->age);
cprintf(" sex:%s",this1->sex);
cprintf(" xibie:%s",this1->xibie);
cprintf(" jiguan:%s",this1->jiguan);
cprintf(" chinese:%6.2f",this1->score.chinese);
cprintf(" english:%6.2f",this1->score.english);
cprintf(" math:%6.2f",this1->score.math);
cprintf(" total:%6.2f",this1->score.total);
cprintf(" ave:%6.2f\n",this1->score.ave);
this1=this1->next;
//this1->next=NULL;
}while(this1!=NULL);
getch();
main();
}
//*insert
struct student *insert(struct student *head,struct student *stud)
{
struct student *p0,*p1,*p2;
p1=head;
p0=stud;
if(head==NULL)
{head=p0;p0->next=NULL;}
else
while((p0->num>p1->num) && (p1->next!=NULL))
{p2=p1;p1=p1->next;}
if(p0->num<=p1->num)
{if(head==p1)
{head=p0;
p0->next=p1;
}
else
{p2->next=p0;
p1->next=p1;
}
}
else
{p1->next=p0;
p0->next=NULL;
}
n=n+1;
return(head);
}
void wfile(void)
{FILE *fptr;
char a[10];
if(n<1)
{printf("\nCan't write empty list.\n");return;}
// char a[10];
cprintf("Please input filename:");
gets(a);
if((fptr=fopen(a,"wb"))==NULL)
printf("\nCant' open file agents.rec\n");
else
{this1=head;
while(this1->next!=NULL)
{fwrite(this1,sizeof(struct student ),1,fptr);
this1=this1->next;
}
// fwrite(this1,sizeof(struct student ),1,fptr);
fclose(fptr);
printf("\nFile of %d records have writen.\n",n);
}
getch();
main();
}
//*rfile
void rfile(void)
{FILE *fptr;
char b[10];
cprintf("Please input filename:");
gets(b);
if((fptr=fopen(b,"rb"))==NULL)
printf("\nCan't open file %s\n",b);
else
{n=0;
head=(struct student *)malloc(sizeof(struct student));
this1=head;
fread(this1,sizeof(struct student),1,fptr);
n++;
while(1)
{if(feof(fptr))
{fclose(fptr);
this1->next=NULL;printf("\nFile read.Total agents is now %d.\n",n);
getch(); main() ;
}else{
this1->next=(struct student *)malloc(sizeof(struct student));
this1=this1->next;
fread(this1,sizeof(struct student),1,fptr);
n++;
}} this1->next=NULL;

//fread(this1,sizeof(struct student),1,fptr);
//n++;
fclose(fptr);
printf("\nFile read.Total agents is now %d.\n",n);
}
getch();
main();
}
//*wfile
/*void wfile(void)
{char a[10];
FILE *fptr;
if(n<1)
{printf("\nCan't write empty list.\n");return;}
cprintf("Please input filename:");
gets(a);
if((fptr=fopen(a,"wb"))==NULL)
{cprintf("\nCant' open file ");puts(a);cprintf("\n");
}
else
{fwrite(agent,sizeof(struct student ),n,fptr);
fclose(fptr);
printf("\nFile of %d records writen.\n",n);
}
getch();
main();
}
//*rfile
void rfile(void)
{FILE *fptr;
char a[10];
cprintf("Please input filename:");
gets(a);
if((fptr=fopen(a,"wb"))==NULL)
{cprintf("\nCan't open file ");puts(a);
}
else
{while(fread(&agent[n],sizeof(agent[n]),1,fptr)==1)
n++;
fclose(fptr);
printf("\nFile read.Total agents is now %d.\n",n);
}
getch();
main();
} */
//*cjlr
void cjlr(void)
{struct student *p1;
long num; char ddd[5];
char ccc[5];
window(1,2,80,25);
textbackground(BLUE);
clrscr();
p1=head;
printf("input the student' number:");
scanf("%ld",&num);
if(head==NULL)
{
printf("\nlist null!\n");
}
p1=head;
while(num!=p1->num && p1->next!=NULL)
{p1=p1->next;}
if(p1->num==num)
{printf("chinese:");
scanf("%f",&p1->score.chinese);
// gets(ccc);printf("\n");
// p1->score.chinese=atof(ccc);
printf("english:");
scanf("%f",&p1->score.english);
// gets(numstr);
//p1->score.english=atof(numstr);
//getch();
printf("math:");
scanf("%s",ddd);
// gets(ddd);
p1->score.math=atof(ddd);
p1->score.total=p1->score.chinese+p1->score.english+p1->score.math;
p1->score.ave=(p1->score.chinese+p1->score.english+p1->score.math)/3.0;
}
getch();
main();
}
//*cjlr
/*void cjlr(void)
{struct student *p1;
long num; char ddd[4];
window(1,2,80,25);
textbackground(BLUE);
clrscr();
p1=head;
printf("input the student' number:");
scanf("%ld",&num);
if(head==NULL)
{
printf("\nlist null!\n");
}
p1=head;
while(num!=p1->num && p1->next!=NULL)
{p1=p1->next;}
if(p1->num==num)
{printf("chinese:");
scanf("%f",p1->score.chinese);
//gets(numstr);
//p1->score.chinese=atof(numstr);
//getch();
printf("english:");
scanf("%f",p1->score.english);
//gets(numstr);
//p1->score.english=atof(numstr);
// getch();
printf("math:");
//scanf("%f",p1->score.math);
gets(ddd);
p1->score.math=atof(ddd);
p1->score.ave=(p1->score.chinese+p1->score.english+p1->score.math)/3.0;
getch();
}
getch();
main();
} */
//*del
void del()
{struct student *p1,*p2;
long num;
window(1,2,80,25);
textbackground(BLUE);
clrscr();
printf("input the del student' number:");
scanf("%ld",&num);
if(head==NULL)
{
printf("\nlist null!\n"); exit(1);
}
p1=head;
while(num!=p1->num && p1->next!=NULL)
{p2=p1;p1=p1->next;
}
if(num==p1->num)
{if(p1==head) head=p1->next;
else
p2->next=p1->next;
printf("the %ld message have del\n",num);
n=n-1;
}
else
printf("No find %ld!\n",num);
getch();
main();
}
//
void cjtj(void)
{struct student *p;
for(p=head;p!=NULL;p=p->next)
{ p->score.total=p->score.chinese+p->score.english+p->score.math;
p->score.ave=p->score.total/3.0;
}
}
//
void cjpx(void)
{
struct student *p,*p1;
int i,j,t;
float temp;
for(i=0;i<n;i++)
{

p=head;
p1=p->next;
if(p->score.total<p1->score.total)
{temp=p->score.total;
p->score.total=p1->score.total;
p1->score.total=temp;
}
}
}
//
void cxxs(void)
{ struct student *p;
char name1[20];
window(1,2,80,25);
textbackground(BLUE);
clrscr();
printf("shu ru yao cha xun de xue sheng de xing ming:");
gets(name1);
for(p=head;p!=NULL;p=p->next)
{if(strcmp(p->name,name1)==0)

{printf("xingming:%s\n",p->name);
printf("xuehao:%ld\n",p->num);
printf("nianling:%s\n",p->age);
printf("xingbie:%s\n",p->sex);
printf("xibie:%s\n",p->xibie);
printf("jiguan:%s\n",p->jiguan);
}
} getch();
main();
}
/*chaxunchengji*/
void cxcj(void)
{ struct student *p;
char name2[20]; int i;
window(1,2,80,25);
textbackground(BLUE);
clrscr();
printf("shu ru yao cha xu de xue sheng de xingming:");
gets(name2);
for(p=head;p!=NULL;p=p->next)
{if(strcmp(p->name,name2)==0)
{printf("xingming:%s\n",p->name);
printf("chinese:%6.2f\n",p->score.chinese);
printf("english:%6.2f\n",p->score.english);
printf("math:%6.2f\n",p->score.math);
printf("total:%6.2f\n",p->score.total);
printf("ave:%6.2f\n",p->score.ave);
}
}getch();
main();
}

/*dayingmugexueshen*/
void list(void)
{ char name3[20];
int i=0;
window(1,2,80,25);
textbackground(BLUE);
clrscr();
printf("shu ru yao da ying de xue sheng xingming:");
gets(name3);
if(head==NULL)
{ printf("\nempty list.\n");
return;
}
for(this1=head;this1!=NULL;this1=this1->next)
{
if(strcmp(this1->name,name3)==0)
{printf("\nnrecord number %d\n",++i);
printf("xingmming:%s\n",this1->name);
printf("xuehao:%ld\n",this1->num);
printf("nianling:%d\n",this1->age);
printf("xingbie:%s\n",this1->sex);
printf("xueyuan:%s\n",this1->xibie);
printf("jiguan:%s\n",this1->jiguan);
printf("chinese:%6.2f\n",this1->score.chinese);
printf("english:%6.2f\n",this1->score.english);
printf("math:%6.2f\n",this1->score.math);
printf("total:%6.2f\n",this1->score.total);
printf("ave:%6.2f\n",this1->score.ave);
}

} getch();
main();
}