C++通讯录设计
算法之路慢慢兮,吾将上下而求索 人气:0功能如下:
1添加学生信息
2删除学生信息
3显示学生信息
4查询学生信息
5学生信息排序
6清空屏幕信息
7清空文档信息
8退出管理系统
上代码!
#include <iostream> #include <algorithm> #include <string> #include <fstream>//读写文件的头文件 using namespace std; struct ElementType; struct Node; struct Queue; typedef struct Queue* MyQueue; struct ElementType { int id; string name; int num; }; struct Node { ElementType data; Node* next; }; struct Queue { Node* front; Node* rear; }; MyQueue Init(MyQueue& q);//Initialize queue bool IsEmpty(MyQueue q);//Determine if the queue is empty bool Insert(ElementType x, MyQueue q);//Insert the data to the end of the queue bool Delete(const int message, MyQueue q);//Find some data in the queue, and then delete the corresponding node void Print(const Node* q);//Prints all the information in a node void PrintAll(const MyQueue q);//Prints information from all nodes bool FindByName(const string massage, const MyQueue q);//Prints information from all nodes void Input(MyQueue q);//When the address book is empty, re-enter the information into the address book void Write(MyQueue q);//Write the information from the queue to the document MyQueue Read();//Write the information from the queue to the document MyQueue ReadOrClear(MyQueue& q);//Whether to empty all the information void Swap(ElementType& x, ElementType& y);//Swap functions in sort MyQueue BubbleSort(MyQueue q);//Sort by student ID using bubble sort void Menu(MyQueue q);//main menu //初始化队列 MyQueue Init(MyQueue& q) { q = new Queue(); if (q == NULL) return NULL; q->front = NULL; q->rear = NULL; return q; } //查看队列是否为空 bool IsEmpty(MyQueue q) { return q->front == NULL; } //添加信息 bool Insert(ElementType x, MyQueue q) { Node* temp = new Node(); if (temp == NULL) return false; temp->data = x;//这里需要改成需要的内容,最好(必须)改成一个函数的形式,赋值的时候调用函数,打印的时候也调用函数 temp->next = NULL; if (IsEmpty(q)) { q->front = temp; q->rear = temp; return true; } else { q->rear->next = temp; q->rear = temp; return true; } } //删除功能 bool Delete(const int message, MyQueue q) { Node* temp = new Node(); if (temp == NULL) return false;//申请储存空间失败 bool pd = 0; //先是找到这个id再进行删除 //先判断是不是头节点,若不是再把头节点当首节点进行使用 if (q->front->data.id == message) {//如果删除头节点 temp = q->front; q->front = q->front->next; delete temp; temp = NULL; pd = 1; } else if (q->rear->data.id == message) {//如果删除尾节点 //先找到尾节点的前一个结点 temp = q->front; while (temp->next->data.id != message) temp = temp->next; q->rear = temp; q->rear->next = NULL; pd = 1; } else {//如果删除中间节点 temp = q->front; while (temp->next != NULL && temp->next->data.id != message) temp = temp->next; if (temp->next == NULL) return false;//判断是不是没有找到,没有找到返回false Node* mp = new Node(); mp = temp->next; temp->next = temp->next->next; delete mp; mp = NULL; pd = 1; } if (pd == 1) { Write(q); cout << "已成功删除该学生信息!" << endl; return true; } } //通过姓名进行查找 bool FindByName(const string massage, const MyQueue q) {//此函数只有查找功能,没有打印功能,打印功能在另一个函数 Node* temp = new Node(); bool pd = 0; if (q->front->data.name == massage) { temp = q->front; Print(temp); return true; } else { temp = q->front; while (temp->next != NULL && temp->next->data.name != massage) temp = temp->next; if (temp->next == NULL) return false;//没有找到这个人的姓名,返回false Print(temp->next); return true; } } //单个进行打印 void Print(const Node* q) { cout << "该学生的信息为:" << endl; cout << "学号: " << q->data.id << " 姓名:" << q->data.name << " 电话号码:" << q->data.num << endl; } //打印全部的学生信息 void PrintAll(const MyQueue q) { cout << "学号"; for (int i = 0; i < 10; i++) { cout << "-"; } cout << "姓名"; for (int i = 0; i < 10; i++) { cout << "-"; } cout << "电话号码" << endl; Node* temp; temp = q->front; while (temp != NULL) { cout << " " <<temp->data.id << " " << temp->data.name << " " << temp->data.num << endl; temp = temp->next; } //cout << endl; } //实现排序的功能函数 void Swap(ElementType& x, ElementType& y) { ElementType temp; temp = x; x = y; y = temp; } MyQueue BubbleSort(MyQueue q) { if (q->front == NULL || q->front->next == NULL) return NULL; for (Node* i = q->front; i->next != NULL; i = i->next) { for (Node* j = q->front; j->next != NULL; j = j->next) { if (j->data.id > j->next->data.id) { Swap(j->data, j->next->data); } } } return q; } //把全部信息存入到文档中 void Write(MyQueue q) { //先根据学号进行排序,再进行存储 q=BubbleSort(q); ofstream writeIt; writeIt.open("data.txt"); if (writeIt.fail()) { cout << "该文件没有找到!" << endl; cout << "程序已退出!" << endl; exit(1); } Node* temp = new Node(); if (q!= NULL) { temp= q->front; while (temp != NULL) { writeIt << temp->data.id << " " << temp->data.name << " " << temp->data.num << endl;; temp = temp->next; } } writeIt.close(); } //从文档中读出所有的信息 MyQueue Read() { ifstream readIt("data.txt"); if (readIt.fail()) { cout << "该文件没有找到!" << endl; cout << "程序已退出!" << endl; exit(1); } int id1; string name1; int num1; MyQueue q=new Queue(); ElementType x; while (!readIt.eof()) { readIt >> id1 >> name1 >> num1; if (readIt.eof()) break; x.id = id1; x.name = name1; x.num = num1; Insert(x, q); } readIt.close(); return q; } //读入文档中的信息 MyQueue ReadOrClear(MyQueue& q) { q=Read(); return q; } //使整个队列置空 void MakeEmpty(MyQueue& q) { while (q->front != NULL) { Node* temp = new Node(); temp = q->front; q->front = q->front->next; delete temp; } } //主菜单 void Menu(MyQueue q) { q=ReadOrClear(q); while (1) { cout << endl; cout << "|--------------------学生通讯录系统---------------------|" << endl; cout << "|--------------------1 添加学生信息---------------------|" << endl; cout << "|--------------------2 删除学生信息---------------------|" << endl; cout << "|--------------------3 显示学生信息---------------------|" << endl; cout << "|--------------------4 查询学生信息---------------------|" << endl; cout << "|--------------------5 学生信息排序---------------------|" << endl; cout << "|--------------------6 清空屏幕信息---------------------|" << endl; cout << "|--------------------7 清空文档信息---------------------|" << endl; cout << "|--------------------8 退出管理系统---------------------|" << endl; cout << "|-------------------------------------------------------|" << endl; int n; cout << "输入您的选择:" << endl; cin >> n; switch (n) { case 1: { ElementType x; cout << "请输入该学生的信息:学号 姓名 电话号码" << endl; cin >> x.id >> x.name >> x.num; Insert(x, q); Write(q); cout << "已成功添加该学生信息!" << endl; break; } case 2: { cout << "请输入该学生的学号:" << endl; int num1; cin >> num1; if (!Delete(num1, q)) { cout << "该系统中不存在该学生!" << endl; }; break; } case 3: { cout << "正在打印全部学生信息中.......请稍等!" << endl; cout << "全部学生的信息为:" << endl; PrintAll(q); break; } case 4: { cout << "请输入该学生的姓名:" << endl; string name1; cin >> name1; if (!FindByName(name1, q)) { cout << "该系统中不存在该学生!" << endl; } break; } case 5: { cout << "正在根据学生的学号对学生进行排序....." << endl; cout << "排完序后,结果为:" << endl; BubbleSort(q); PrintAll(q); break; } case 6: { system("cls"); break; } case 7: { cout << "请您在三确认是否要清空文档中的全部学生信息!清空请输入“yes”,不清空请输入“no”。" << endl; string s; cin >> s; if (s == "yes") { //先把队列中的全部节点都delete掉,再进行写入文档中 MakeEmpty(q); q = Init(q); Write(q); cout << "已经成功清空文档中的全部学生信息!" << endl; } break; } case 8: { cout << "退出成功!" << endl; exit(0); } default: cout << "输入的选项序号有误,请重新输入!" << endl; } } } int main() { MyQueue q; q = Init(q); Menu(q); return 0; }
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