Course Design-Address Book Management System

After sorting out the file, I found the course design report last year and saved the code. I thought it was not good to write the code after six months, it indicates that there has been a little progress; this shows that there should be a little progress ~

# Include <stdio. h> # include <stdlib. h> # include <string. h> # include <conio. h>/* screen operation function library */# define header1 "| ************************ Address Book ** * ******************* | \ n "# define header2" | No. | Name | phone number | Address | \ N "# define header3" | --------- | ----------------- | ------------------------- | ----------------------- | \ n "# define end" | terminate | \ n "int input (); in T show (); void DELE (); void save (); int change (); int Cx (); int find1 (); int find2 (); int find3 (); void quit (); // struct telebook {int num; char name [20]; char phonenum [20]; char ADDR [30] ;}; void printheader ()/* format the output menu header */{printf (header1); printf (header2 ); printf (header3 );} //////////////////////////////////////// // communication information input /////////////////////////////////// //// // int input (struct Telebook temp []) {char sign, X [20]; int I = 0; file * FP;/* define file pointer */system ("CLS "); if (FP = fopen ("telebook.txt", "AB +") = NULL)/* If the reading and writing of the Two-Step file telebook.txt fails, the error message */{printf ("An error occurred while opening the file! "); Exit (0);} while (sign! = 'N' & sign! = 'N') {printf ("\ t No.:"); scanf ("\ t % d", & temp [I]. num); printf ("\ t name:"); scanf ("\ t % s", temp [I]. name); printf ("\ t phone number:"); scanf ("\ t % s", temp [I]. phonenum); printf ("\ t Mailing address:"); scanf ("\ t % s", temp [I]. ADDR); gets (x); printf ("\ n \ t continue to join ?? (Y/n) "); scanf (" \ t % C ", & sign); I ++;} fwrite (& temp [I], sizeof (struct telebook ), 1, FP); fclose (FP); System ("CLS"); Return 0 ;} //////////////////////////////////////// /// display the communication information ////////////////////////////////// //// // int show (struct telebook temp []) {int I; printheader (); for (I = 0; I <100; I ++) {If (temp [I]. num = '\ 0') break; printf ("%-10D %-20 S %-20 S %-20s \ n", temp [I]. num, temp [I]. name, temp [I]. phonenum, Temp [I]. ADDR);} printf ("--------------------------------------------------- \ n"); System ("pause"); System ("CLS"); Return 0 ;} //////////////////////////////////////// /delete communication information //////////////////////////////////// /////////// void DELE (struct telebook temp []) {char s [20]; int I = 0, J; show (temp); printf ("\ t enter the name in the record to be deleted :"); scanf ("% s", S); for (I = 0; I <100; I ++) {If (strcmp (temp [I]. name, S) = 0) {for (j = I; j <20; j ++) {T EMP [J] = temp [J + 1];} printf ("\ t has been deleted successfully! \ N "); getch (); System (" CLS "); Return ;}} printf (" \ t address book does not contain this person! \ N "); getch (); System (" CLS ");} /// // Communication information Storage ////////////////////////////////////// //////// void save (struct telebook temp []) {int I; file * FP; If (FP = fopen ("telebook.txt", "W") = NULL) {printf ("cannot open this file \ n"); exit (0) ;}for (I = 0; strlen (temp [I]. name )! = 0; I ++) fprintf (FP, "% d % S % s \ n", temp [I]. num, temp [I]. name, temp [I]. phonenum, temp [I]. ADDR); fclose (FP );} //////////////////////////////////////// /// communication information change ////////////////////////////////// //// // int change (struct telebook temp []) {char s [20]; int I = 0; show (temp); printf ("\ t enter the name of the record to be modified :"); scanf ("% s", S); for (I = 0; I <100; I ++) {If (strcmp (temp [I]. name, S) = 0) {printf ("\ t No.:"); scanf ("\ t % d", & temp [I]. num); printf ("\ t name:"); scanf ("\ t % s", temp [I]. name); printf ("\ t phone number:"); scanf ("\ t % s", temp [I]. phonenum); printf ("\ t Mailing address:"); scanf ("\ t % s", temp [I]. ADDR); printf ("\ t modified successfully! "); Getch (); System (" CLS "); Return 0 ;}{ printf (" \ t address book does not contain this person! \ N "); return;} getch (); System (" CLS ");} /// // communication information query /////////////////////////////////////// //// int Cx (struct telebook temp []) {int N, flag = 1; printf ("how do you want to search? \ N "); printf (" \ T1. No. \ t \ T2. name \ t \ T3. phone number \ T4. return \ n "); scanf (" % d ", & N); do {If (n = 1) {find1 (temp); return;} If (n = 2) {find2 (temp); return ;} if (n = 3) {find3 (temp); return;} If (n = 4) {system ("CLS"); return;} else {flag = 0; printf ("incorrect input, please input again:"); scanf ("% d", & N) ;}} while (flag = 0); Return 0 ;} //////////////////////////////////////// //// query by serial number ///////////////////////////////// /// // int find1 (Struct telebook temp []) {int I = 0, S = 0; printf ("\ t enter the number you want to query:"); scanf ("% d ", & S); for (I = 0; I <100; I ++) {If (temp [I]. num = s) {printheader (); printf ("%-10D %-20 S %-20 S %-20s \ n", temp [I]. num, temp [I]. name, temp [I]. phonenum, temp [I]. ADDR); getch (); System ("CLS"); Return 0 ;}} printf ("\ t address book does not contain this person! \ N "); getch (); System (" CLS "); return 1 ;} //////////////////////////////////////// /query by name //////////////////////////////////// //// // int find2 (struct telebook temp []) {char s [20]; int I = 0; printf ("\ t enter the name you want to query:"); scanf ("% s", S ); for (I = 0; I <100; I ++) {If (strcmp (temp [I]. name, S) = 0) {printheader (); printf ("%-10D %-20 S %-20 S %-20s \ n", temp [I]. num, temp [I]. name, temp [I]. phonenum, temp [I]. ADDR); getch (); s Ystem ("CLS"); Return 0 ;}} printf ("\ t address book does not contain this person! \ N "); getch (); System (" CLS "); return 1 ;} //////////////////////////////////////// // query by phone number ////////////////////////////////// //// // int find3 (struct telebook temp []) {char s [20]; int I = 0; printf ("\ t enter the phone number you want to query:"); scanf ("% s", S ); for (I = 0; I <100; I ++) {If (strcmp (temp [I]. phonenum, S) = 0) {printheader (); printf ("%-10D %-20 S %-20 S %-20s \ n", temp [I]. num, temp [I]. name, temp [I]. phonenum, temp [I]. ADDR); getch (); System ("CLS"); Return 0 ;}} printf ("\ t address book does not contain this person! \ N "); getch (); System (" CLS "); return 1 ;} /// // void quit () {printf ("\ n"); printf ("\ n"); printf ("\ t★★★★★★★★★★★★★★★★★★★★★\ N "); printf (" \ t★★★★★★★Thank you for your use.★★★★★★★★\ N "); printf (" \ t★★★★★★★Welcome to use again★★★★★★★★\ N "); printf (" \ t★★★★★★★★★Thank you.★★★★★★★★★★\ N "); exit (0); getch (); System (" CLS ");} /// // Main Function //////////////////////////////////////// //// // int main () {struct telebook mess [100]; char xx; System ("color 2e");/* Change console color */while (1) {printf ("\ t★☆★☆★[Welcome to the address book management system]★☆★☆★\ N "); printf ("\ t ************** * ***** \ n "); printf ("\ t ┌ ── ─ ┐ \ n "); printf ("\ t ● A. Communication Information Input \ n"); printf ("\ t ● B. Communication Information Display \ n "); printf ("\ t ● C. Save communication information \ n"); printf ("\ t ● D. Delete communication information \ n "); printf ("\ t ● E, communication information change \ n"); printf ("\ t ● F, Communication Information Query \ n "); printf ("\ t ◆ I, query by ID \ n"); printf ("\ t ◆ II, query by name \ n "); printf ("\ t ◆ III. query by phone number \ n"); printf ("\ t ● g, exit system \ n "); printf ("\ t └ ── ─ ┘ \ n "); printf ("\ t ********************************* * ******** \ n "); printf ("Enter your choice \ n"); scanf ("% C", & XX); getchar (); System ("CLS"); Switch (XX) {Case 'A': input (MESS); break; Case 'B': Show (MESS); break; Case 'C': Save (MESS); break; case 'D': DELE (MESS); break; Case 'E': Change (MESS); break; Case 'F': Cx (MESS); break; case 'G': Quit (); break; default: Return 0;} getchar ();} return 0 ;}

It is a little simple, just to compare your learning status, and compare it with the previous, to see if there are any progress ~ Use your past as a mirror to inspire yourself !!!