通讯录练习

  1 #include<iostream>
  2 #include<Windows.h>
  3 #include<string>
  4 
  5 using namespace std;
  6 
  7 #define MAX 1000
  8 
  9 #pragma region 结构体
 10 
 11 
 12 
 13 struct stcPersong
 14 {
 15     int  id;
 16     string name;
 17     int sex;
 18     int age;
 19     string adress;
 20 };
 21 
 22 struct stcMenu
 23 {
 24     stcPersong stcperson[MAX];//联系人结构体
 25     int m_size;//人数
 26 };
 27 
 28 #pragma endregion
 29 
 30 #pragma region 函数
 31 
 32 void showMenu()
 33 {
 34     cout << "********** 1.添加联系人 ********** " << endl;
 35     cout << "********** 2.显示联系人 ********** " << endl;
 36     cout << "********** 3.删除联系人 ********** " << endl;
 37     cout << "********** 4.查找联系人 ********** " << endl;
 38     cout << "********** 5.修改联系人 ********** " << endl;
 39     cout << "********** 6.清空联系人 ********** " << endl;
 40     cout << "********** 0.退出系统   ********** " << endl;
 41 }
 42 
 43 //限制输入数字
 44 int numInput()
 45 {
 46     char n;
 47     int num;
 48     //cout << "please enter a number:" << endl;
 49     cin >> n;
 50     num = n;
 51     while (1)  
 52     {
 53         if (int(num) >= 48 || int(num) <= 57|| int(num) ==46||int(num) == 8)
 54             break;
 55         else
 56         {
 57             cout << "你输入的不是一个数字!!" << endl;
 58         }
 59         cin >> n;
 60     }
 61 
 62     return n;
 63 }
 64 //仅输入数字
 65 void onlyNumber()
 66 {
 67     cout << "请输入:" << endl;
 68     string s;
 69     cin >> s;
 70     while (s.size() != 1 || s[0] <= ‘0‘ || s[0] >= ‘9‘) {
 71         cout << "输入错误，请重新输入:" << endl;
 72         cin >> s;
 73     }
 74     cout << "成功" << endl;
 75 }
 76 
 77 //添加联系人
 78 void addPerson(stcMenu * stc)
 79 {
 80     if (stc->m_size > MAX)
 81     {
 82         cout << "通讯录已满" << endl;
 83     }
 84     else
 85     {
 86         string nam;
 87         stc->stcperson[stc->m_size].id = stc->m_size;
 88         cout << "输入姓名" << endl;
 89         cin >> nam;
 90         stc->stcperson[stc->m_size].name = nam;
 91 
 92         cout << "输入性别" << endl;
 93         int se;
 94         cin >> se;
 95         stc->stcperson[stc->m_size].age = se;
 96 
 97         cout << "输入年龄" << endl;
 98         int ag = 0;
 99         ag = numInput();
100         //cin >> ag;
101         stc->stcperson[stc->m_size].age = ag;
102 
103         cout << "添加完成" << endl;
104         stc->m_size++;
105     }
106     system("pause");
107     system("cls");
108     return;
109 }
110 //显示联系人
111 void showPerson(stcMenu * stc)
112 {
113     if (stc->m_size == 0)
114     {
115         cout << "通讯录为空" << endl;
116     }
117     else
118     {
119         for (int i = 0; i < stc->m_size; i++)
120         {
121             cout << "序号  " << stc->stcperson[i].id << "      姓名 " << stc->stcperson[i].name <<
122                 "    性别  " << (stc->stcperson[i].sex == 1 ? "男" : "女") << "    年龄" << stc->stcperson[i].age << endl;
123         }
124     }
125 }
126 //检测联系人
127 int checkPerson(stcMenu * stc, string name)
128 {
129     if (stc->m_size > 0)
130     {
131         for (size_t i = 0; i < stc->m_size; i++)
132         {
133             if (stc->stcperson[0].name == name)
134             {
135                 return i;
136             }
137         }
138         return -1;
139     }
140     else
141     {
142         cout << "通讯录为空！" << endl;
143         return -1;
144     }
145 }
146 //删除联系人
147 void deletePerson(stcMenu * stc)
148 {
149     cout << "删除联系人\n";
150     cout << "   输入姓名：\n";
151     string m_name;
152     cin >> m_name;
153     int ret = checkPerson(stc, m_name);
154     if (ret != -1)
155     {
156         for (size_t i = ret; i < stc->m_size - ret; i++)
157         {
158             stc->stcperson[i] = stc->stcperson[i + 1];
159         }
160         stc->m_size--;
161     }
162     else
163     {
164         cout << "查无此人！" << endl;
165     }
166     system("pause");
167     system("cls");
168     return;
169 }
170 
171 //查找联系人
172 void findPerson(stcMenu * stc)
173 {
174     cout << "查找联系人\n";
175     cout << "     输入姓名：\n";
176     string m_name;
177     cin >> m_name;
178     int ret = checkPerson(stc, m_name);
179     if (ret != -1)
180     {
181         cout << "序号：" << stc->stcperson[ret].id << "  姓名：" << stc->stcperson[ret].name << "   年龄：" << stc->stcperson[ret].age << endl;;
182     }
183     else
184     {
185         cout << "查无此人！" << endl;
186     }
187     system("pause");
188     system("cls");
189     return;
190 }
191 //修改联系人
192 void alterPerson(stcMenu * stc)
193 {
194     cout << "修改联系人\n";
195     cout << " ---- 输入姓名：\n";
196     string m_name;
197     cin >> m_name;
198     int ret = checkPerson(stc, m_name);
199     if (ret != -1)
200     {
201         cout << "输入新年龄：\n";
202         int m_age;
203         cin >> m_age;
204         stc->stcperson[ret].age = m_age;
205         cout << "修改完成\n";
206     }
207     else
208     {
209         cout << "查无此人！" << endl;
210     }
211     system("pause");
212     system("cls");
213     return;
214 }
215 //清空联系人
216 void clearPerson(stcMenu * stc)
217 {
218     again:
219     int select;
220     cout << "清空联系人\n，确定--1，取消--2"<<endl;
221     //cin >> select;
222     select = numInput();
223     if (select == 1)
224     {
225         cout << "已经清空联系人\n";
226         stc->m_size = 0;
227     }
228     else if (select == 2)
229     {
230         cout << "已经取消清空联系人\n";
231     }
232     else
233     {
234         cout << "请输入正确选项\n";
235         goto again;
236     }
237     system("pause");
238     system("cls");
239     return;
240 }
241 
242 
243 #pragma endregion
244 
245 
246 int main()
247 {
248     int select;
249 
250     stcMenu stcp;
251     stcp.m_size = 0;
252     while (true)
253     {
254         showMenu();
255         cin >> select;
256 
257         switch (select)
258         {
259         case 1://1.添加联系
260             addPerson(&stcp);
261             break;
262         case 2://2.显示联系人 
263             showPerson(&stcp);
264             break;
265         case 3:// 3.删除联系人
266             deletePerson(&stcp);
267             break;
268         case 4://4.查找联系人
269             findPerson(&stcp);
270             break;
271         case 5://5.修改联系人
272             alterPerson(&stcp);
273             break;
274         case 6://6.清空联系人
275             clearPerson(&stcp);
276             break;
277         case 0://0.退出系统  
278             cout << "欢迎下次使用" << endl;
279             system("pause");
280             return 0;
281             break;
282         }
283 
284     }
285 
286     return 0;
287 }