小弟是菜鸟，请高手帮我看看这个程序哪里有问题
按照书上给的题，结果总是出错，请各位大侠帮着看看哪步出了问题，改证一下，多谢，周一学校就要了，小弟在线等结果！～#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "ctype.h"
#define M 500
typedef struct
{ char name[20];
char email[20];
char units[20];
char tele[10];
}ADDRESS;
int enter(ADDRESS t[]);
void list(ADDRESS t[],int n);
void search(ADDRESS t[],int n);
int delete(ADDRESS t[],int n);
int add(ADDRESS t[],int n);
void save(ADDRESS t[],int n);
int load(ADDRESS t[]);
void display(ADDRESS t[]);
void sort(ADDRESS t[],int n);
void qseek(ADDRESS t[],int n);
void print(ADDRESS temp);
int find(ADDRESS t[],int n,char *s);
int menu();
main()
{ int i;
ADDRESS adr[M];
int length;
clrscr();
for(;;)
{ switch(menu())
{ case 0:length=enter(adr);break;
case 1:list(adr,length);break;
case 2:search(adr,length);break;
case 3:length=delete(adr,length);break;
case 4:length=add(adr,length);break;
case 5:save(adr,length);break;
case 6:length=load(adr);break;
case 7:display(adr);break;
case 8:sort(adr,length);break;
case 9:qseek(adr,length);break;
case 10:exit(0);
}
}
}
menu()
{ char s[80];
int c;
gotoxy(1,25);
printf("press any key enter menu...\n");
getch();
clrscr();
gotoxy(1,1);
printf("**********MENU********\n\n");
printf(" 0.Enter record\n");
printf(" 1.Browse the file\n");
printf(" 2.Search record on name\n");
printf(" 3.Delete a record\n");
printf(" 4.add record\n");
printf(" 5.Save the file\n");
printf(" 6.Load the file\n");
printf(" 7.display record on order\n");
printf(" 8.sort to make new file\n");
printf(" 9.Quick seek record\n");
printf(" 10.Quit\n");
printf("****************************\n");
do
{printf("\n Enter you choice(0~10):");
scanf("%s",s);
c=atoi(s);
}while(c<0||c>10);
return c;
}
int enter(ADDRESS t[])
{ int i,n;
char *s;
clrscr();
printf("\nplease input num \n");
scanf("%d",&n);
printf("please input record \n");
printf("name e-mail unit telephone\n");
printf("------------------------------------\n");
for(i=0;i<n;i++)
{ scanf("%s%s%s%s",t[i].name,t[i].email,t[i].units,t[i].tele);
printf("----------------------------------------------\n");
}
return n;
}
void list(ADDRESS t[],int n)
{ int i;
clrscr();
printf("\n\n********************ADDRESS*****************\n");
printf("name e-mail unit telephone\n");
printf("-----------------------------------------------------------\n");
for(i=0;i<n;i++)
printf("%-20s%-20s%-20s%-10s\n",t[i].name,t[i].email,t[i].units,t[i].tele);
if((i+1)%10==0)
{ printf ("Press any key continue...\n");
getch();
}
printf("********end*******\n");
}
void search (ADDRESS t[],int n)
{ char s[20];
int i;
clrscr();
printf("Please enter the name that you want to search:\n");
scanf("%s",s);
i=find(t,n,s);
if(i>n-1)
printf("Can not find the name who you want!\n");
else
printf(t[i]);
}
void print(ADDRESS temp)
{ clrscr();
printf("\n\n***********************************\n");
printf("name e-mail unit telephone\n");
printf("-----------------------------------------\n");
printf("%-20s%-20s%-20s%-10s\n",temp.name,temp.email,temp.units,
temp.tele);
printf("***************end**************\n");
}
int find(ADDRESS t[],int n,char *s)
{ int i;
for(i=0;i<n;i++)
{ if(strcmp(s,t[i].name)==0)
return i;
}
return i;
}
int delete(ADDRESS t[],int n)
{ char s[20];
int ch=0;
int i,j;
printf("please deleted name\n");
scanf("%s",s);
i=find(t,n,s);
if(i>n-1)
printf("no found not deleted\n");
else
{ printf(t[i]);
printf("Are you sure delete it(1/0)\n");
scanf("%d",&ch);
if(ch==1)
{ for(j=i+1;j<n;j++)
{strcpy(t[j-1].name,t[j].name);
strcpy(t[j-1].email,t[j].email);
strcpy(t[j-1].units,t[j].units);
strcpy(t[j-1].tele,t[j].tele);
}
n--;
}
}
return n;
}
int add(ADDRESS t[],int n)
{ ADDRESS temp;
int i,j;
char s[20];
printf("please input record\n");
printf("************************\n");
printf("name email unit telephone\n");
printf("-----------------------------------\n");
scanf("%s%s%s%s",temp.name,temp.email,temp.units,temp.tele);
printf("----------------------------------------\n");
printf("please input locate name \n");
scanf("%s",s);
i=find(t,n,s);
for(j=n-1;j>=i;j--)
{ strcpy(t[j+1].name,t[j].name);
strcpy(t[j+1].email,t[j].email);
strcpy(t[j+1].units,t[j].units);
strcpy(t[j+1].tele,t[j].tele);
}
strcpy(t[i].name,temp.name);
strcpy(t[i[.email,temp.email);
strcpy(t[i].units,temp.units);
strcpy(t[i].tele,temp.tele);
n++;
return n;
}
void save(ADDRESS t[],int n)
{ int i;
FILE *fp;
if((fp=fopen("record.txt","wb"))==NULL)
{ printf("can not open file\n");
exit(1);
}
printf("\nSaving file\n");
fprintf(fp,"%d",n);
fprintf(fp,"\r\n");
for(i=0;i<n;i++)
{ fprintf(fp,"%-20s%-20s%-20s%-10s",t[i].name,
t[i].email,t[i].units,t[i].tele);
fprintf(fp,"\r\n"); /
}
fclose(fp);
printf("****save success***\n");
}
int load(ADDRESS t[])
{ int i,n;
FILE *fp;
if((fp=fopen("record.txt","rb"))==NULL) /
{ printf("can not open file\n");
exit(1);
}
fscanf(fp,"%d",&n);
for(i=0;i<n;i++)
fscanf(fp,"%20s%20s%20s%10s",t[i].name,t[i].email,
t[i].units,t[i].tele);
fclose(fp);
printf("You have success read data from file!!!\n");
return n;
}
void display(ADDRESS t[])
{ int id,n;
FILE *fp;
if((fp=fopen("record.txt","rb"))==NULL)
{ printf("can not open file\n");
exit(1);
}
printf("Enter order number...\n");
scanf("%d",&id);
fscanf(fp,"%d",&n)
if(id>=0&&id<n)
{ fseek(fp,(id-1)*sizeof(ADDRESS),1);
print(t[id]);
printf("\r\n");
}
else
printf("no %d number record!!!\n ",id);
fclose(fp);
}
void sort(ADDRESS t[],int n)
{ int i,j,flag;
ADDRESS temp;
for(i=0;i<n;i++)
{ flag=0;
for(j=0;j<n-1;j++)
if((strcmp(t[j].name,t[j+1].name))>0)
{ flag=1;
strcpy(temp.name,t[j].name);
strcpy(temp.email,t[j].email);
strcpy(temp.units,t[j].units);
strcpy(temp.tele,t[j].tele);
strcpy(t[j].name,t[j+1].name);
strcpy(t[j].email,t[j+1].email);
strcpy(t[j].units,t[j+1].units);
strcpy(t[j].tele,t[j+1].tele);
strcpy(t[j+1].name,temp.name);
strcpy(t[j+1].email,temp.email);
strcpy(t[j+1].units,temp.units);
strcpy(t[j+1].tele,temp.tele);
}
if(flag==0)break;
}
printf("sort success!!!\n");
}
void qseek(ADDRESS t[],int n)
{ char s[20];
int l,r,m;
printf("\nPlease sort before qseek!\n");
printf("please enter name for qseek\n");
scanf("%s",s);
l=0;r=n-1;
while(l<=r)
{ m=(l+r)/2;
if(strcmp(t[m].name,s)==0)
{ print(t[m]);
return ;
}
if(strcmp(t[m].name,s)<0)
l=m+1;
else
r=m-1;
}
if(l>r)
printf("not found\n");
}
