# include & ltstdlib.h & gt
# include & ltstring.h & gt
# Define the format "%s\t\t%s\t\t%s\t%d\t%s\n"
int count = 0；
Structural address
{
char Name[2 1]；
int Age
char Sex[6]；
char class num[ 1 1]；
char phon num[ 12]；
};
int enter face()；
Int Add (address book []);
Int Modify (address book []);
Int Delent (address book []);
Int Insert (address book []);
Int Find (address book []);
Int Show (address book []);
Int FindName (address book []);
Int FindClassNum (address book []);
Int DelName (address book []);
Int DelClassNum (address book []);
Intfindhonnum (address book []);
Int Readtxt (address book []);
Int Writetxt (address book []);
Int Search (address book [], char str 1[], int n);
Int FSearch (address book [], char str2[], int n);
Inttaxi (address book []);
int Exit()；
////////////////////////////////////////////////////////////////////
void main()
{
Address book [100];
Int selection;
char or = ' m
printf(" \ n ")；
printf(" \ n ")；
printf(" \ n ")；
printf(" \ n ")；
printf(" \ n ")；
printf(" \ n ")；
printf(" \ n ")；
printf(" \ \ \ \ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\" n ")；
printf(" \ n ")；
printf(！ ! ! Welcome to the class address book system! ! ! \ n ")；
printf(" \ n ")；
printf(！ ! ! Press any key to enter the system! ! ! \ n ")；
printf(" \ n ")；
printf(！ ! ! Administrator: * * * *! ! ! \ n ")；
printf(" \ n ")；
printf("//////////////////////////////////////////////////\ n ")；
System ("suspended");
System ("CLS");
Readtxt (book);
while(or=='m ')
{
choice = enter face()；
Switch (selection)
{
Case 1: add (book);
Break;
Case 2: Revision (book);
Break;
Case 3: Drenthe (book);
Break;
Case 4: Insert (book);
Break;
Case 5: find (book);
Break;
Case 6: Show (book);
Break;
Case 7: exit ();
Break;
Default value: printf (! idspninfopath)。 ! ! Input error! ! ! \ n ")；
exit()；
Break;
}
}
}
int Enterface()
{
int choice = 0；
printf(" * * * * * * * * * * * * * * * * * \ n ")；
Printf(" 1。 add \ n ")；
Printf(" 2。 Modify \ n ");
Printf(" 3。 Delete \ n ");
Printf(" 4。 insert \ n ")；
Printf(" 5。 Find \ n ");
Printf(" 6。 display \ n ")；
Printf(" 7。 Exit \ n ");
printf(" * * * * * * * * * * * * * * * * * \ n ")；
Printf ("Please enter your choice:");
Scanf("%d ",& select);
Regression selection;
}
Int Add (address book [])
{
char or = ' Y
while('Y'==or)
{
Printf ("Please enter your name:");
Scanf("%s ",& book [number]. Name);
flag 1:
Printf ("Please enter phone number:");
Scanf("%s ",& book [number]. phon num)；
for(int I = 0； I < count; i++)
{
if(strcmp(book[count])。 PhonNum, book [i] PhonNum)==0)
{
printf(！ ! ! This number already exists! ! ! \ n ")；
goto flag 1；
}
}
Sign 2:
Printf ("Please enter your student number:");
Scanf("%s ",& book [number]. class num)；
for(I = 0； I < count; i++)
{
if(strcmp(book[count])。 ClassNum，book[i]。 ClassNum)==0)
{
printf(！ ! ! Student ID already exists! ! ! \ n ")；
Go to flag2.
}
}
Printf ("Please enter age:");
Scanf("%d ",& book [number]. Age);
Printf ("Please enter gender:");
Scanf("%s ",& book [number]. Sex);
getchar()；
count++；
Printf ("Do you want to continue adding ('y' to add, and other keys will return to the main interface):");
Scanf("%c ",&or);
if('Y '！ = or)
{
System ("CLS");
Break;
}
}
Taxi (book);
Writetxt (book);
//printf(" sdfsdfsdf \ n ")；
Returns 0;
}
Int modification (address book [])
{
char str[ 1 1]；
int flag = 0；
int ksd = 0；
Printf ("Student ID entered last year:");
scanf("%s "，& ampstr)；
for(int I = 0； I < count; i++)
{
if(strcmp(str，book[i])。 ClassNum)==0)
{
If (ksd==0)
{
Printf(" Name \ t phone \ t \ t \ t student id \ tsex \ tage \ n ");
ksd = 1；
}
printf("%8s\t%8s\t%s\t%s\t%d\n "，book[i]。 Name, book [me]. Peak number,
Book [me]. ClassNum，book[i]。 Sex, books [me]. Age);
//str[flag _ num++]= I；
flag = 1；
//I-；
Break;
}
}
If (flag ==0)
{
printf(！ ! ! There is no such record! ! ! \ n ")；
Returns 0;
}
Printf ("Please enter your name:");
Scanf("%s ",& Book [me]. Name);
Flag 0:
Printf ("Please enter phone number:");
Scanf("%s ",& Book [me]. phon num)；
for(int j = 0； J< counting; j++)
{
If (j==i)
Continue;
If(strcmp (book [i]). PhonNum, book [j]. PhonNum)==0)
{
printf(！ ! ! This number already exists! ! ! \ n ")；
Go to flag0.
}
}
Sign 3:
Printf ("Please enter your student number:");
Scanf("%s ",& Book [me]. class num)；
for(j = 0； J< counting; j++)
{
If (j==i)
Continue;
If(strcmp (book [i]). ClassNum，book[j]。 ClassNum)==0)
{
printf(！ ! ! Student ID already exists! ! ! \ n ")；
Go to flag3
}
}
Printf ("Please enter age:");
Scanf("%d ",& Book [me]. Age);
Printf ("Please enter gender:");
Scanf("%s ",& Book [me]. Sex);
getchar()；
Printf ("Modify! \ n ")；
Writetxt (book);
System ("suspended");
//printf(" modify \ n ")；
Returns 0;
}
Int Delent (address book [])
{
//printf(" delent \ n ")；
int choice = 0；
printf(" = = = = = = = = = = = = = = = = = \ n ")；
Printf(" 1。 Delete by name \ n ");
Printf(" 2。 Delete by student number \ n ");
printf(" = = = = = = = = = = = = = = = = = \ n ")；
Scanf("%d ",& select);
Switch (selection)
{
Case 1: DelName (book);
Break;
Case 2: DelClassNum (book);
Break;
Default value:
Break;
}
Returns 0;
}
Int Insert (address book [])
{
To add (a book);
//printf(" insert \ n ")；
Returns 0;
}
Int Find (address book [])
{
int choice = 0；
printf(" = = = = = = = = = = = = = = = = = \ n ")；
Printf(" 1。 Search by name \ n ");
Printf(" 2。 Search by student number \ n ");
Printf(" 3。 Phone lookup \ n ");
printf(" = = = = = = = = = = = = = = = = = \ n ")；
Scanf("%d ",& select);
Switch (selection)
{
Case1:find name (book);
Break;
Case 2: FindClassNum (book);
Break;
Case 3: FindPhonNum (book);
Break;
Default value:
Break;
}
//printf(" find \ n ")；
Returns 0;
}
Int FindName (address book [])
{
char aname[30]；
Printf ("Please enter the name you want to find:");
scanf("%s "，& ampaname)；
FSearch(book，aname，3)；
Returns 0;
}
Int FindClassNum (address book [])
{
char anum[20]；
Printf ("Please enter the student number you are looking for:");
scanf("%s "，& ampanum)；
FSearch(book，anum，2)；
Returns 0;
}
Intfindhonnum (address book [])
{
char aphonnum〔20〕；
Printf ("Please enter the student number you are looking for:");
Scanf("%s ",& aphonia);
FSearch(book，aphonnum， 1)；
Returns 0;
}
Int Show (address book [])
{
Int or = 0;
if(count==0)
{
printf(！ ! ! There is no record! ! ! \ n ")；
System ("suspended");
System ("CLS");
}
other
{
Printf(" Name \ t phone \ t \ t \ t student id \ tsex \ tage \ n ");
for(int I = 0； I < count; i++)
printf("%8s\t%8s\t%s\t%s\t%d\n "，book[i]。 Name, book [me]. Peak number,
Book [me]. ClassNum，book[i]。 Sex, books [me]. Age);
System ("suspended");
}
Printf ("Sort? \n-= 1。 Sorting =-= 2. Return to main interface =-\ n ");
Scanf("%d ",&or);
If( 1 = = or)
Taxi (book);
Returns 0;
}
Int DelName (address book [])
{
char aname[20]；
Printf ("Please enter the name to delete:");
scanf("%s "，& ampaname)；
Search (book, aname, 2);
Returns 0;
}
Int DelClassNum (address book [])
{
char anum[20]；
Printf ("Please enter the student number to be deleted:");
scanf("%s "，& ampanum)；
Search (book, anum,1);
Returns 0;
}
Int Readtxt (address book [])
{
FILE * FP 1；
FP 1 = fopen(" photo numbers . txt "，" r ")；
if(fp 1 == NULL)
{
Printf ("Wrong! \ n ")；
System ("suspended");
}
And (! feof(fp 1))
{
If (! fscanf(fp 1，" %s\t\t%s\t\t%s\t%d\t%s "，book[count]。 Names, books [numbers]. Peak number,
Books [numbers]. ClassNum & amp； Books [numbers]. Age, books [number]. Sex))
Printf ("Reading error!" );
count++；
}
count-；
fclose(FP 1)；
Returns 0;
}
Int Writetxt (address book [])
{
FILE * fp
fp=fopen("photonumbers.txt "，" w ")；
for(int I = 0； I < count; i++)
{
fprintf(fp，FORMAT，book[i])。 Name, book [me]. Peak number,
Book [me]. ClassNum，book[i]。 Age, book [me]. Sex);
}
fclose(FP)；
Returns 0;
}
Int Search (address book [], char str 1[], int n)
{
int flag = 0；
int str[5]；
int flag _ num = 0；
int j；
int gf
int ksd = 0；
for(int I = 0； I < count; i++)
{
If (n== 1)
{
if(strcmp(str 1，book[i])。 ClassNum)==0)
flag = 2；
}
else if(n==2)
{
if(strcmp(str 1，book[i])。 Name)==0)
flag = 2；
}
if(flag==2)
{
If (ksd==0)
{
Printf(" Name \ t phone \ t \ t \ t student id \ tsex \ tage \ n ");
ksd = 1；
}
printf("%8s\t%8s\t%s\t%s\t%d\n "，book[i]。 Name, book [me]. Peak number,
Book [me]. ClassNum，book[i]。 Sex, books [me]. Age);
str[flag _ num++]= I；
flag = 1；
}
}
If (flag ==0)
{
printf(！ ! ! There is no record! ! ! \ n ")；
System ("suspended");
System ("CLS");
}
if(flag== 1)
{
Printf("-= 1。 Confirm deletion =-\t-=2. cancel =-\ n ")；
scanf("%d "，& ampj)；
if( 1==j)
{
gf = 1；
for(int m = str[0]； M< Count-Flag _ Quantity; m++)
{
for(int j = gf- 1； J < flag _ number; j++)
{
if((m+gf)==str[j])
gf++；
}
Strcpy (book [m]. Name, book [m+gf]. Name);
Book [m] Age = book [m+gf]. Age;
Strcpy (book [m].ClassNum, book[m+gf]. class num)；
Strcpy (book [m].PhonNum, book[m+gf]. phon num)；
Strcpy (book [m]. Sex, book [m+gf]. Sex);
}
Count = Count-Flag _ Quantity;
Writetxt (book);
}
else if(2==j)
{
printf(！ ! ! Operation cancelled! ! ! \ n ")；
}
System ("suspended");
}
Returns 0;
}
Int FSearch (address book [], character str2[], int n)
{
int flag = 0；
int ksd = 0；
for(int I = 0； I < count; i++)
{
If (n== 1)
{
if(strcmp(str2，book[i])。 PhonNum)==0)
flag = 2；
}
else if(3==n)
{
if(strcmp(str2，book[i])。 Name)==0)
flag = 2；
}
else if(2==n)
{
if(strcmp(str2，book[i])。 ClassNum)==0)
flag = 2；
}
if(flag==2)
{
if(0==ksd)
{
Printf(" Name \ t phone \ t \ t \ t student id \ tsex \ tage \ n ");
ksd = 1；
}
printf("%8s\t%8s\t%s\t%s\t%d\n "，book[i]。 Name, book [me]. Peak number,
Book [me]. ClassNum，book[i]。 Sex, books [me]. Age);
flag = 1；
}
}
if( 1==flag)
System ("suspended");
else if(flag==0)
{
printf(！ ! ! There is no such record! ! ! \ n ")；
System ("suspended");
System ("CLS");
}
Returns 0;
}
Inttaxi (address book [])
{
/* for(int I = 0； I < count; i++)
{
for(int j = 0； j & ltcount- 1-I； j++)
{
If(strcmp (book [j].ClassNum, book[j+ 1]). ClassNum)>0)
{
Address bk;
Strcpy (black. Name, book [j]. Name);
bk。 Age = book [j]. Age;
Strcpy (black. ClassNum，book[j]。 class num)；
Strcpy (black. PhonNum, book [j]. phon num)；
Strcpy (black. Sex, books [j]. Sex);
Strcpy (book [j]. Name, book [j+ 1]. Name);
Book [j] Age = book [j+ 1]. Age;
Strcpy (book [j].ClassNum, book[j+ 1]. class num)；
Strcpy (book [j].PhonNum, book[j+ 1]. phon num)；
Strcpy (book [j]. Sex, book [j+ 1]. Sex);
Strcpy (book [j+ 1]. Name, bk. Name);
Book [j+ 1]. Age =bk. Age;
Strcpy (book [j+ 1]. ClassNum shoal. class num)；
Strcpy (book [j+ 1]. Funham shoal. phon num)；
Strcpy (book [j+ 1]. Sex, bk. Sex);
}
}
}
printf(！ ! ! Operation successful! ! ! \ n ")；
System ("suspended");
System ("CLS");
Writetxt (book); */
Returns 0;
}
int Exit()
{
Exit (1);
Returns 0;
}
This is a program I wrote before. There is a written document with some virtual contact information. If necessary, I will send you the whole project and leave an email ... O(∩_∩)O~