C++中怎么鏈表實(shí)現(xiàn)一個通訊錄管理系統(tǒng)

C++中怎么鏈表實(shí)現(xiàn)一個通訊錄管理系統(tǒng)，很多新手對此不是很清楚，為了幫助大家解決這個難題，下面小編將為大家詳細(xì)講解，有這方面需求的人可以來學(xué)習(xí)下，希望你能有所收獲。

具體內(nèi)容如下

文件操作未寫

有登錄操作，復(fù)制源碼需要更改登錄模塊的密碼文件存放位置

使用VS2017編譯器需要保留開頭： #define _CRT_SECURE_NO_WARNINGS

#define _CRT_SECURE_NO_WARNINGS#include "iostream"#include "cstdio"#include "fstream"#include "stdlib.h"#include "String"#include "iomanip"#include "windows.h"#define LEN 100using namespace std;  using std::cin;using std::cout;using std::endl;using std::ifstream;using std::ofstream;using std::ios;using std::cerr;using std::string;using std::setw; typedef struct LNode { char num[10]; char name[20]; char telNum[12]; char qq[10]; struct LNode *next;}LNode,*LinkList; int n = 0; void InitList(LinkList &L);//初始化表void InsertLNode(LinkList &L,LNode *s);//前插法插入新結(jié)點(diǎn)LinkList SearchName(LinkList L);//按姓名查找LinkList SearchNum(LinkList L);//按學(xué)號查找void DelLNode(LinkList &L,LinkList p);//刪除p結(jié)點(diǎn)void PrintLNode(LinkList p);//打印結(jié)點(diǎn)void PrintList(LinkList L);//打印表/*----------------系統(tǒng)函數(shù)----------------*/void CreateLinkList(LinkList &L);//創(chuàng)建鏈表void DelName(LinkList &L);//按姓名刪除通訊錄成員void DelNum(LinkList &L);//按學(xué)號刪除通訊錄成員void saveRecord(LinkList L);//存儲信息void loadRecord(LinkList &L);//加載信息/*--------------------------------------*/void Secret();void fun();void ver();void yanshi(char *p);void clear();void header(); void menu() { LinkList L=NULL; int select; do { system("cls"); printf("\t\t\t  Welcome to the address book information management system!\n\n\n"); printf("\t\t\t\t***************************************************\n"); printf("\t\t\t\t * │1.InitList   2.Add Message │ *\n"); printf("\t\t\t\t * │         │ *\n"); printf("\t\t\t\t * │3.Search Message 4.Save File  │ *\n"); printf("\t\t\t\t * │         │ *\n"); printf("\t\t\t\t * │5.Sort Static  6.Load Message │ *\n"); printf("\t\t\t\t * │         │ *\n"); printf("\t\t\t\t * │7.Display Message 8.Delete Message│ *\n"); printf("\t\t\t\t * │         │ *\n"); printf("\t\t\t\t * │9.Save Message  0.Exit System │ *\n"); printf("\t\t\t\t***************************************************\n"); cout << endl; yanshi((char *)"\t\tPlease choose the mode of operation(1~8):\n");/* cout << "\t\tPlease choose the mode of operation(1~8):" << endl;*/ cin >> select; switch (select) { case 8: cout << "Please select the deletion method：\n1.Delete by student number 2.Delete by name\n" << endl; int x; cin >> x; switch (x) { case 1: DelNum(L); break; case 2: DelName(L); break; } case 6: loadRecord(L); break; case 5: break; case 4: saveRecord(L); break; case 3: clear(); cout << "Please select a search method：\n1.Find by student number 2.Find by name\n" << endl; int a; cin >> a; switch (a) { case 1: clear(); {  LinkList aa = SearchNum(L);  header();  PrintLNode(aa);  cout << "\n\n\n成功!" << endl;  system("pause");  menu(); } break; case 2: clear(); {  LinkList b = SearchName(L);  header();  PrintLNode(b);  cout << "\n\n\n成功!" << endl;  system("pause");  menu();  break; } } break; case 1: InitList(L); break; case 9: break; case 7: PrintList(L); break; case 2: CreateLinkList(L); break; case 0: cout << endl << endl << endl; cout << "The programe is over!" << endl << endl << endl; Sleep(2000); exit(0); break; } } while (select != 8);} int main() { fun(); ver();//版本信息 Secret();//密碼登錄 menu(); return 0;} //初始化表void InitList(LinkList & L){ L = new LNode;//申請頭結(jié)點(diǎn) L->next= NULL;} //插入一條信息void InsertLNode(LinkList & L, LNode *s){ s->next = L->next; L->next = s;} //按姓名查找LinkList SearchName(LinkList L){ char name[20]; cout << "請輸入要查找的姓名：" << endl; cin >> name; LinkList p = L->next; while (p) { //如果找到，退出循環(huán),返回p if (strcmp(p->name, name) == 0) break; else p = p->next; } return p;} //按學(xué)號查找LinkList SearchNum(LinkList L){ char num[10]; cout << "請輸入要查找的學(xué)號：" << endl; cin >> num; LinkList p = L->next; while (p) { //如果找到，退出循環(huán),返回p if (strcmp(p->num, num) == 0) break; else p = p->next; } return p;} //刪除節(jié)點(diǎn)void DelLNode(LinkList &L,LinkList p){ LinkList s=NULL, q; q = L->next; //將s指向p前面的一個結(jié)點(diǎn) while (q&&q!=p) { s = q; q = q->next; } s->next = q->next; delete q;} //打印一條信息void PrintLNode(LinkList p){ printf("%15s", p->num); printf("%15s", p->name); printf("%15s", p->telNum); printf("%15s\n",p->qq);} //打印通訊錄void PrintList(LinkList L){ clear(); header(); LinkList p = L->next; while (p) { PrintLNode(p); p = p->next; } system("pause");} //添加信息void CreateLinkList(LinkList & L){ char ans = 'y'; n = 0; while (ans=='y'||ans=='Y') { system("cls"); LNode *p = new LNode; cout << "請輸入學(xué)號：" << endl; cin >> p->num; cout << "請輸入姓名：" << endl; cin >> p->name; cout << "請輸入電話號碼：" << endl; cin >> p->telNum; cout << "請輸入QQ號：" << endl; cin >> p->qq; InsertLNode(L,p); n++; cout<<"是否繼續(xù)？(Y/N)"<<endl; getchar(); ans=getchar(); } system("pause");} //按姓名刪除void DelName(LinkList &L){ char name[20]; LinkList p; cout << "請輸入要刪除的學(xué)生姓名：" << endl; cin >> name; p = SearchName(L); if (p) { DelLNode(L,p); } system("pause");} //按學(xué)號刪除void DelNum(LinkList & L){ char num[20]; LinkList p; cout << "請輸入要刪除的學(xué)生學(xué)號：" << endl; cin >> num; p = SearchName(L); if (p) { DelLNode(L, p); } system("pause");} //存儲信息void saveRecord(LinkList L){ FILE *fp=NULL; int count = 0; if ((fp=(fopen("student.dat","wb")))==NULL) { cout << "Can't open this file!" << endl; Sleep(3000); } LinkList q = L->next; while (q) { fwrite(q, sizeof(LNode), 1, fp); count ++; q = q->next; } fclose(fp); cout << "Save the file successfully!" << endl; getchar();} //加載信息void loadRecord(LinkList & L){ FILE *fp=NULL; int count = 0; if ((fp=(fopen("student.dat", "rb"))) == NULL) { cout << "Can't open this file!" << endl; Sleep(3000); } LinkList p=NULL; while(1){ p = new LNode; if (fread(p, sizeof(LNode), 1, fp) > 0) { InsertLNode(L,p); count++; } else { break; } } fclose(fp); cout << endl << endl << "Load "<<count<<"messages!" << endl; Sleep(2200);} //控制臺樣式void fun() { system("color 2a"); system("title 學(xué)生通訊錄信息管理系統(tǒng)");} //版本信息void ver(){ yanshi((char*)"\t  \3\3\3\3\3\3\3歡迎使用通訊錄信息管理系統(tǒng)\3\3\3\3\3\3\3\n\n\n\n"); cout << "\t     學(xué)生通訊錄信息管理系統(tǒng)\n\n\n\n\n"; cout << "\t\t   version 1.0\n\n\n\n\n"; cout << "\t\t   xxxxxxxxx 某某某\n\n\n\n\n"; cout << "\t\t   Loading......\n\n" << endl; Sleep(3000); system("cls"); } //延時輸出void yanshi(char *p){ while (1) { if (*p != 0) cout << *p++; else break; Sleep(50); } } //清屏void clear(){ system("cls");} //表頭void header(){ printf("%15s%15s%15s%15s\n","學(xué)號","姓名","電話","QQ");} /*--------------------------------登錄模塊----------------------------------*//*--------------------------------登錄模塊----------------------------------*//*--------------------------------登錄模塊----------------------------------*/struct UsrInfo//用戶名的賬戶和密碼信息{ char UsrName[20]; char Psword[20];};/*注意我的文件中用戶名是一行，密碼是一樣。在注冊的時候只需要看用戶名，不需要看密碼是不是相符，所以設(shè)置i為計數(shù)變量，當(dāng)i不能整除2的時候是訪問用戶名的時候，當(dāng)i整除2的時候是訪問密碼的時候。讀入密碼這一行直接跳出去就行了。*/int regest(struct UsrInfo* usr) {//注冊程序 char usrname[20]; char psword[20]; strcpy_s(usrname, usr->UsrName); strcpy_s(psword, usr->Psword); string temp; int flag = 0; int i = 0; ifstream fin("E:\\Love-Study\\學(xué)生通訊錄管理系統(tǒng)\\static.dat", ios::in);//在這個路徑下讀入文件 ofstream fout("E:\\Love-Study\\學(xué)生通訊錄管理系統(tǒng)\\static.dat", ios::app);//在同一個路徑下，如果注冊成功則寫入文件 while (std::getline(fin, temp))//每次讀一行的數(shù)據(jù)進(jìn)入temp中。 { i++; if (i % 2 == 0) continue;//訪問的是密碼這一行，跳出。 if (!strcmp(usrname, temp.c_str())) flag = 1;//flag=1說明用戶名已經(jīng)被注冊了 } fin.close(); if (flag) { return 0;//之前有重復(fù)的賬戶名 } else {//沒注冊 fout << usrname << endl;//向文件寫入注冊者的用戶名，然后換一行 fout << psword << endl;//寫入密碼，換行 fout.close(); return 1;//注冊成功 }}int login(struct UsrInfo* usr) { char usrname[20]; char psword[20]; strcpy_s(usrname, usr->UsrName); strcpy_s(psword, usr->Psword); string temp1; string temp2; int existname = 0; int match = 0; int i = 0; ifstream fin("E:\\Love-Study\\學(xué)生通訊錄管理系統(tǒng)\\static.dat", ios::in); while (std::getline(fin, temp1)) { std::getline(fin, temp2);//一次讀進(jìn)去兩行，分別是用戶名和密碼 if (!strcmp(usrname, temp1.c_str())) {//有這個用戶名了，接下來看看密碼是不是相符的 existname = 1; if (!strcmp(psword, temp2.c_str())) {//相符 match = 1; break; } } } fin.close(); if (!existname) { return 2;//沒有賬戶名 } else { if (match) return 1; else return 3;//用戶名和密碼不匹配 }}void Secret(){ clear(); cout << "1.注冊 2.登錄" << endl; int c; cin >> c; switch (c) { case 1: { clear(); UsrInfo test1;//用于測試注冊程序的。 char urr[20], prr[20]; cout << "請輸入用戶名：" << endl; cin >> urr; cout << "請輸入密碼：" << endl; cin >> prr; strcpy(test1.UsrName, urr); strcpy(test1.Psword, prr); switch (regest(&test1)) { case 1: cout << "注冊成功" << endl; system("pause"); Secret(); break; case 0: cout << "用戶名已被注冊，請重新選擇用戶名" << endl; system("pause"); Secret(); break; default: break; } break; } case 2: { clear(); UsrInfo test2;//用于測試注冊程序的。 char ur[20], pr[20]; cout << "請輸入用戶名：" << endl; cin >> ur; cout << "請輸入密碼：" << endl; cin >> pr; strcpy(test2.UsrName, ur); strcpy(test2.Psword, pr); switch (login(&test2)) { case 1: cout << "登錄成功" << endl; system("pause"); menu(); break; case 3: cout << "密碼錯誤" << endl; system("pause"); Secret(); break; case 2: cout << "沒有此用戶名，請注冊" << endl; system("pause"); Secret(); break; default: break; } } }}

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