delete the empty function: the input contact name to find the appropriate data and delete data (contact has saved to file) are not learning linked list, cannot use the list to delete
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Suggest the original poster posted all codeCodePudding user response:
#include
#include
#include
#include
20 # define M
Struct conect//structure
{
Char name [11].
Char telnum [12].//phone number
Char address [100].//address
Int f;//tag
};
Int N=0;//the total number of global variables
int n;
int num;//the total number of
Struct conect c [10];//structure number
Struct conect cc;
Int main (void)
{
Void input (), expl (), meun (), password (), save (), read (), serch (), dele (), dele_all ();
Void dele_menu (), newsave ();
Void dele_save (); Part//delete function
Int choice;
//password ();
system("pause");
system("cls");
While (1)
{
Meun ();
Printf (" \ \ t \ \ t \ \ t t t t ");
The scanf (" % d ", & amp; Choice);
The switch (choice)
{
Case 1: input (); break;
Case 2: expl (); break;
Case 3: save (); break;
Case 4: read (); break;
Case 5: serch (); break;
Case 6: dele_menu (); break;
Case 7: newsave (); break;
Case: 0 exit (0);
}
printf("\n");
system("pause");//pause function
system("cls");//screen clearing function
}
}
Void input ()//input data function
{
int i;
Printf (" \ \ t \ \ t \ \ t t t t input number: ");
The scanf (" % d ", & amp; Num);
N=n;
For (I=N; i
Printf (" \ \ t \ \ t \ \ t t t t name: ");
The scanf (" % s ", c [I] name);
Printf (" \ \ t \ \ t \ \ t t t t call: ");
The scanf (" % s ", c [I] telnum);
Printf (" \ \ t \ \ t \ \ t t t t address: ");
The rewind (stdin);
Gets (c [I] address);
Printf (" \ \ t \ \ t \ \ t t t t tags: ");
The scanf (" % d ", & amp; C [I] f);
printf("\n");
N++;
}
}
Void expl reading input to preserve information ()//(timeliness)
{
int i;
12 12 printf (" % s % s % 30 s % s \ n ", "name", "phone", "address", "label");
for (i=0; i
12 12 printf (" % s % s % s "30, [I] c name, c [I] telnum, c [I] address);
The switch (c [I] f)
{
Case 1: printf (" relatives \ n "); break;
Case 2: printf (" colleagues \ n "); break;
Case 3: printf (" friends \ n "); break;
}
}
}
Void meun ()
{
Printf (" \ \ \ t \ \ t t t t \ t1 input contact \ n ");
Printf (" \ \ \ t \ \ t t t t \ t2 browse contacts \ n ");
Printf (" \ \ \ t \ \ t t t t \ t3 to save the contact \ n ");
Printf (" \ \ \ t \ \ t t t t \ t4 read from file \ n ");
Printf (" \ \ \ t \ \ t t t t \ t5 locate contacts \ n ");
Printf (" \ \ \ t \ \ t t t t \ t6 delete contacts \ n ");
Printf (" \ \ \ t \ \ t t t t \ t7 has new file \ n ");
Printf (" \ \ \ t \ \ t t t t \ t0 exit \ n ");
Printf (" \ \ t \ \ t \ \ t t t t please enter 1 or 2 \ n ");
}
Void dele_menu ()
{
int a;
Printf (" \ \ \ t \ \ t t t t \ t1 delete not to save the contact \ n ");
Printf (" \ \ \ t \ \ t t t t \ t2 delete saved contacts \ n ");
Printf (" \ \ \ t \ \ t t t t \ t3. Delete all contacts \ n ");
The scanf (" % d ", & amp; A);
The switch (a)
{
Case 1: dele (); break;
Case 2: dele_save (); break;
Case 3: dele_all (); break;
Default:
break;
}
}
Void password ()
{
Char password [10]="123456";//the correct password
Char ps [10];//define a new array with the right answer comparing
int i,j;
printf("\n\n");
Printf (" \ \ t \ \ t \ \ t t t t================================\ n ");
Printf (" \ \ t \ \ t \ \ t t t t user login system \ n ");
Printf (" \ \ t \ \ t \ \ t t t t================================\ n ");
printf("\n\n");
for (j=0; j <4. J++)
{
I=0;
Printf (" \ \ t \ \ t \ \ t t t t, please enter the password. \ n ");
Printf (" \ \ t \ \ t \ \ t t t t password: ");
While ((ps [I]=getch ())!=13)//used to replace *, input end of the enter judgment
{
If (ps [I]=='\ b')//(\ b) back space, here is used to delete functions
{
Printf (" \ \ b b ");//delete function
I -;//back to reduce a cursor in advance
}
The else
{
Printf (" * ");
i++;
}
}
Ps [I]='\ 0';
printf("\n");
If (STRCMP (password, ps)==0)
{
printf("\n\n");
Printf (" \ \ t \ \ t \ \ t t t t================================\ n ");
Printf (" \ \ t \ \ t \ \ t t t t welcome users! \n");
Printf (" \ \ t \ \ t \ \ t t t t================================\ n ");
printf("\n\n");
break;
}
The else
{
Printf (" \ \ \ t \ \ t t t t \ tNO! \n");
If (3 - j==0)
{
Printf (" \ \ t \ \ t \ \ t t t t all errors automatically quit!" );
exit(0);
}
Printf (" \ \ t \ \ t \ \ t t t t and % d chance! \ n ", 3 - j);
}
}
}
Void the save ()//store content function
{
The FILE * fp.
Int * a;
int i;
Fp=fopen (" conect. Dat ", "wb");//set up a file and open writing class capacity
for (i=0; i
Fwrite (& amp; C [I], sizeof (struct conect), 1, fp);//write file block
}
fclose(fp);//close the file
Printf (" \ n save success ");
}
Void the read ()//class let read function
{
FILE *fp;//pointer variable definition of
int i;
Fp=fopen (" conect. Dat ", "ab +");//set up a file and open writing class capacity
12 12 printf (" % s % s % 30 s % s \ n ", "name", "phone", "address", "label");
While (1)
{
Fread (& amp; Cc, sizeof (struct conect), 1, fp);//read the file blocks
If (feof (fp))//file end of end mark
{
break;
}
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