struct student *readfromefile(struct student *phead,char *file)
{
int num=0;
int n=0;
struct student *pstu=NULL;
FILE *fp=fopen(file,"r");
if(NULL==fp)
{
return NULL;
}
while(1)
{
pstu=malloc(sizeof(struct student));
n=fread(pstu,sizeof(struct student),1,fp);
if(0 == n)
{
free(pstu);
pstu=NULL;
break;
}
pstu->next=NULL;
pstu->pre=NULL;
addstu(&phead,pstu);
num++;
}
fclose(fp);
return phead;
}
int FileInit() {
printf("Read From File\n");
freopen("Data.txt","r",stdin);
freopen("Temp.txt","w",stdout);
while (~scanf("%d",&Order)) {
switch (Order) {
case 1 : addstu(); break;
case 2 : addact(); break;
case 3 : qstu(); break;
case 4 : qact(); break;
case 5 : qc(); break;
case 0 : break;
default : break;
}
}
freopen("/dev/tty","r",stdin);
freopen("/dev/tty","w",stdout);
printf("Read Finish\n");
}
int main() {
Init();
FileInit();
Order = -1;
//work
while (Order != 0) {
ReadInit();
switch (Order) {
case 1 : addstu(); break;
case 2 : addact(); break;
case 3 : qstu(); break;
case 4 : qact(); break;
case 5 : qc(); break;
case 0 : break;
default : printf("Unknown Order\n");break;
}
}
// free the memory
EndFree();
return 0;
}
int main(int argc,char *argv[])
{
int a=0;
char buf[1024];
int cmdno;
int quit=0;
char name[20];
char id[20];
int rt;
int age;
char sex;
struct student *pstu;
struct student stu;
struct listhead phead;
phead.next = phead.pre = &phead;
// readfromfile(&phead,STUFILE);
//struct allstudent allstu;
//rt=init_allstu(&allstu);
printf("****************************************************************\n");
printf("please input cmd:");
if(rt==-1)
{
return -1;
}
while(0==quit)
{
fgets(buf,1024,stdin);
buf[strlen(buf)-1] = '\0';
cmdno=getCmdno(buf);
switch(cmdno)
{
case HELP:
help();
break;
case ADD:
printf("add\n");
printf("please input student info\n");
printf("please input student id\n");
scanf("%s",id);
printf("please input student name\n");
scanf("%s",name);
printf("please input student age\n");
scanf("%d",&age);
printf("please input student sex\n");
fgets(buf,1024,stdin);
scanf("%c",&sex);
// strcpy(stu.id,id);
// strcpy(stu.name,name);
// stu.age=(char)age;
// stu.sex = sex;
// addbyorder(&allstu,&stu);
pstu = malloc(sizeof(struct student));
if(NULL==pstu)
{
printf("no\n");
break;
}
strcpy(pstu->id,id);
strcpy(pstu->name,name);
pstu->age=(char)age;
pstu->sex=sex;
addstu(&phead,pstu);
break;
case DEL:
printf("please input student id\n");
scanf("%s",id);
// pstu=findbyid(&phead,id);
if(NULL==pstu)
{
printf("%s can not exit\n",id);
break;
}
delstu(pstu);
free(pstu);
pstu=NULL;
break;
/* case FIND:
printf("please input student id\n");
scanf("%s",id);
pstu=findbyid(&phead,id);
if(NULL==pstu)
{
printf("no this student\n");
break;
}
showone(pstu);
break;
case FNAME:
printf("please input name:");
scanf("%s",name);
pstu=NULL;
do
{
pstu=findbyname(&phead,name,pstu);
if(NULL!=pstu)
{
showone(pstu);
}
}while(NULL!=pstu);
break;*/
case SHOW:
showall(&phead);
printf("please input cmd:");
break;
/* case RSHOW:
rshowall(&phead);
printf("please input cmd:");
break;
case REVER:
reverse(&phead);
printf("please input cmd:");
break;*/
case QUIT:
quit=1;
break;
/* case SAVE:
savefile(&phead,STUFILE);
printf("please input cmd:");
break;
case MODIFY:
break;
*/
default:
printf("please input cmd:");
break;
}
}
destroyall(&phead);
return 0;
}
int main()
{
struct idhash allstu;
struct student *p;
struct student tempstu;
struct student *stu;
int tempage;
char cmd[1024];
int cmdnum;
int quit = 0;
int select;
FILE *studata;
studata = fopen("studata","r+");
if(NULL == studata)
{
studata = fopen("studata","w+");
if(NULL == studata)
{
printf("cannot open file !\n");
return -1;
}
}
initallidhash(&allstu);
readfromfile(&allstu,studata);
printf("|-------------------------------------------|\n");
printf("|----Welcome to Student Database System-----|\n");
printf("|-------------------------------------------|\n\n");
printf("%d student have!\n",count(&allstu));
while(0 == quit)
{
printf("|-------------------------------------------|\n");
printf("|-------Please Input \"help\" for Help--------|\n");
printf("|-------------------------------------------|\n");
fgets(cmd,1024,stdin);
cmd[strlen(cmd)-1] = 0;
cmdnum = getcmd(cmd);
switch(cmdnum)
{
case CMDSHOW:
showallstu(&allstu);
break;
case CMDQUIT:
printf("quit successful!\n");
quit = 1;
break;
case CMDADD:
printf("please input a new student:\nstudent's ID:");
scanf("%s",tempstu.id);
printf("please input student's Name:");
scanf("%s",tempstu.name);
printf("please input student's age:");
scanf("%d",&tempage);
tempstu.age = (char)tempage;
fgets(cmd,1024,stdin);
printf("please input student's sex:");
scanf("%c",&tempstu.sex);
fgets(cmd,1024,stdin);
tempstu.next = NULL;
p = findstu(&allstu,tempstu.id);
if(NULL != p)
{
printf("This id is already exist!\n");
break;
}
stu = newstu(&tempstu);
addstu(&allstu,stu);
break;
case CMDDEL:
printf("please input the id you wante to delete:");
scanf("%s",tempstu.id);
fgets(cmd,1024,stdin);
p = findstu(&allstu,tempstu.id);
if(NULL == p)
{
printf("not found the id!\n");
break;
}
delstu(&allstu,p);
break;
case CMDFIND:
printf("please input 1 for id,2 for name:");
scanf("%d",&select);
fgets(cmd,1024,stdin);
if(1 == select)
{
scanf("%s",tempstu.id);
fgets(cmd,1024,stdin);
p = findstu(&allstu,tempstu.id);
if(NULL == p)
{
printf("not found the id!\n");
break;
}
showstu(p);
}
/*
else if(2 == select)
{
printf("please input the name you want to find:");
scanf("%s",tempstu.name);
fgets(cmd,1024,stdin);
p = phead;
do
{
p = findnamenext(p,tempstu.name);
if(NULL != p)
{
showstu(p);
p = p->next;
}
}while(NULL != p);
break;
}
*/
case CMDSAVE:
save(&allstu,studata);
break;
case CMDREVERSE:
//phead = reverse(phead);
break;
case CMDHELP:
showhelp();
break;
default:
printf("not this cmd\n");
break;
}
}
fclose(studata);
}
