这两天主要实现一个通讯录管理系统,功能有:添加联系人,显示联系人,删除联系人,查找联系人,修改联系人,清空联系人,以及退出通讯录七个功能。
就直接上代码了。
//封装函数显示该界面,函数为:void showMenu()
//在main函数中直接调用函数。
#include<iostream>
#include<cstring>
using namespace std;
const int MAX = 1000;
//设计联系人结构体
struct Person {
//姓名
string m_Name;
//性别 1 男 2 女
int m_Sex;
//年龄
int m_Age;
//电话
string m_Phone;
//住址
string m_Addr;
};
//设计通讯录结构体
struct Addressbooks {
//通讯录中保存的联系人数组
struct Person personArray[MAX];
//通讯录中当前记录的联系人个数
int m_Size;
};
//1.添加联系人
void addPerson(Addressbooks* abs) {
//判断通讯录是否已满,如果满了就不再添加
if (abs->m_Size == MAX) {
cout << "通讯录已满,无法添加!" << endl;
return;
}
else {
//添加具体联系人
//姓名
string name;
cout << "请输入姓名: " << endl;
cin >> name;
abs->personArray[abs->m_Size].m_Name = name;
//性别
cout << "请输入性别: " << endl;
cout << "1 --- 男" << endl;
cout << "2 --- 女" << endl;
int sex = 0;
while (1)
{
//如果输入1或2,可以退出循环,因为输入的是正确值
//如果输入的有误,那么就重新输入。
cin >> sex;
if (sex == 1 || sex == 2) {
abs->personArray[abs->m_Size].m_Sex = sex;
break;
}
else {
cout << "输入有误,请重新输入" << endl;
}
}
//年龄
cout << "请输入年龄: " << endl;
int age = 0;
while (1) {
cin >> age;
if (age < 0 || age >= 100)//如果年龄过于夸张
//视为输入错误,重新输入
cout << "您输入的年龄有误,请重新输入。" << endl;
else {
abs->personArray[abs->m_Size].m_Age = age;
break;
}
}
//电话
cout << "请输入联系人电话: " << endl;
string phone;
cin >> phone;
abs->personArray[abs->m_Size].m_Phone = phone;
//住址
cout << "请输入家庭住址: " << endl;
string address;
cin >> address;
abs->personArray[abs->m_Size].m_Addr = address;
//更新通讯录人数。
cout << "添加成功" << endl;
abs->m_Size++;
system("pause");
system("cls");
}
}
//2.显示联系人
void showPerson(Addressbooks* abs) {
//判断通讯录中人数是否为0,如果为0,提示记录为空
//如果不为零,显示记录的联系人信息
if (abs->m_Size == 0)
cout << "当前通讯录为空" << endl;
else {
for (int i = 0; i < abs->m_Size; i++) {
cout << "名字: " << abs->personArray[i].m_Name << "\t";
cout << "性别: " << (abs->personArray[i].m_Sex == 1 ? "男" : "女") << "\t";
cout << "年龄: " << abs->personArray[i].m_Age << "\t";
cout << "电话: " << abs->personArray[i].m_Phone << "\t";
cout << "地址: " << abs->personArray[i].m_Addr << endl;
}
}
system("pause");
system("cls");
}
//检测联系人是否存在,如果存在,返回联系人所在数组中的位置,不存在返回-1
//参数1:通讯录,参数2:对比姓名
int isExist(Addressbooks* abs, string name) {
for (int i = 0; i < abs->m_Size; i++) {
//找到用户输入的姓名了
if (abs->personArray[i].m_Name == name) return i;//找到了,返回数组下标
}
return -1;//没找到,返回-1
}
//3.删除指定联系人
void deletePerson(Addressbooks* abs) {
cout << "请输入您要删除的联系人" << endl;
string name;
cin >> name;
//ret == -1 未查到
//ret != -1 查到了
int ret = isExist(abs, name);
if (ret != -1) {
//查找到此人,删掉他
for (int i = ret; i < abs->m_Size - 1; i++) {
//数据前移
abs->personArray[i] = abs->personArray[i + 1];
}
abs->m_Size--;//更新通讯录中的人数
cout << "删除成功" << endl;
}
else {
cout << "查无此人" << endl;
}
system("pause");
system("cls");
}
//4.查找指定联系人
void findPerson(Addressbooks* abs) {
cout << "请输入您要查找的联系人" << endl;
string name;
cin >> name;
int ret = isExist(abs, name);
if (ret != -1) {
cout << "姓名: " << abs->personArray[ret].m_Name << "\t";
cout << "性别: " << (abs->personArray[ret].m_Sex == 1 ? "男" : "女") << "\t";
cout << "年龄: " << abs->personArray[ret].m_Age << "\t";
cout << "电话: " << abs->personArray[ret].m_Phone << "\t";
cout << "住址: " << abs->personArray[ret].m_Addr << endl;
}
else {
cout << "查无此人"<<endl;
}
//按任意键清屏
system("pause");
system("cls");
}
//5.修改指定联系人信息
void modifyPerson(Addressbooks* abs) {
cout << "请输入您要修改的联系人" << endl;
string name;
cin >> name;
int ret = isExist(abs, name);
if (ret != -1) {//找到联系人
// 姓名
string name;
cout << "请输入姓名: " << endl;
cin >> name;
abs->personArray[ret].m_Name = name;
// 性别
cout << "请输入性别: " << endl;
cout << "1---男" << endl;
cout << "2---女" << endl;
int sex = 0;
while (1) {
cin >> sex;
if (sex == 1 || sex == 2) {//输入正确,退出循环
abs->personArray[ret].m_Sex = sex;
break;
}
else {//输入错误
cout << "输入有误,请重新输入" << endl;
}
}
// 年龄
cout << "请输入年龄" << endl;
int age = 0;
while (1) {
cin >> age;
if (age < 0 || age>100)
cout << "输入有误,请重新输入" << endl;
else {
abs->personArray[ret].m_Age = age;
break;
}
}
// 电话
cout << "请输入联系电话: " << endl;
string phone;
cin >> phone;
abs->personArray[ret].m_Phone = phone;
// 住址
cout << "请输入家庭住址: " << endl;
string address;
cin >> address;
abs->personArray[ret].m_Addr = address;
cout << "修改成功" << endl;
}
else {//未找到联系人
cout << "查无此人" << endl;
}
system("pause");
system("cls");
}
//6.清空联系人
void cleanPerson(Addressbooks* abs) {
cout << "请确认您是否要真的清空通讯录" << endl;
cout << "1---是" << endl;
cout << "2---否" << endl;
int ret;
while (1) {
cin >> ret;
if (ret == 1) {
abs->m_Size = 0;
cout << "通讯录已清空" << endl;
system("pause");
system("cls");
break;
}
else if (ret == 2) {
cout << "取消操作成功" << endl;
system("pause");
system("cls");
break;
}
else cout << "输入错误,请重新输入!" << endl;
}
}
//菜单界面
void showMenu() {
cout << "**************************" << endl;
cout << "***** 1.添加联系人 *****" << endl;
cout << "***** 2.显示联系人 *****" << endl;
cout << "***** 3.删除联系人 *****" << endl;
cout << "***** 4.查找联系人 *****" << endl;
cout << "***** 5.修改联系人 *****" << endl;
cout << "***** 6.清空联系人 *****" << endl;
cout << "***** 0.退出通讯录 *****" << endl;
cout << "**************************" << endl;
}
int main() {
//创建通讯录结构体变量
Addressbooks abs;
//初始化通讯录中当前的人员个数
abs.m_Size = 0;
//用户通过输入来选择。
int select;
//菜单调用
while (1) {
showMenu();
cin >> select;
switch (select) {//switch中,如果case内含语句太多,需要在case中多加一对大括号
//形成代码段。
case 1://1.添加联系人
addPerson(&abs);//利用地址传递,修饰实参。
break;
case 2://2.显示联系人
showPerson(&abs);
break;
case 3://3.删除联系人
{
deletePerson(&abs);
break;
}
case 4://4.查找联系人
findPerson(&abs);
break;
case 5://5.修改联系人
modifyPerson(&abs);
break;
case 6://6.清空联系人
cleanPerson(&abs);
break;
case 0://0.退出通讯录
cout << "欢迎下次使用" << endl;
system("pause");
return 0;
break;
default://用户没有正确输入功能。
cout << "没有此功能选项,请重新选择" << endl;
system("pause");
system("cls");
break;
}
}
system("pause");
return 0;
}