一想到“管理系统”，咱们脑海里通常浮现四个字，增查删改。这也是必不可少的局部。
我先把这个零碎我要实现的局部列举进去（当然，我的思路有很多有余，恳请大佬斧正，批评，不胜感激）
cout << "***********1.增加联系人**********" << 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.批改联系人**********" << endl; cout << "***********6.清空联系人*********" << endl; cout << "***********0.退出零碎***********" << endl;（备注：退出也是其中一个性能哦）
首先，构建构造体变量
#define MAX 1000struct person{ string name; int sex{ }; int age{ }; string phonenumber; string address;};struct addressbook{ struct person personArr[MAX]; int person_size{ };增加联系人
void addPerson(addressbook* aaa) //增加联系人模块{ if (aaa->person_size < MAX) { string name; cout << "请输出姓名：" << endl; cin >> name; aaa->personArr[aaa->person_size].name = name; int sex; cout << "请输出性别对应序号：（1--男 2--女)" << endl; while (true) { cin >> sex; if ((sex == 1) || (sex == 2)) { aaa->personArr[aaa->person_size].sex = sex; break; } else { cout << "您输出的有误，请查看后从新输出！" << endl; } } int age = 0; cout << "请输出年龄：" << endl; cin >> age; aaa->personArr[aaa->person_size].age = age; string phonenumber; cout << "请输出电话：" << endl; cin >> phonenumber; aaa->personArr[aaa->person_size].phonenumber = phonenumber; string address; cout << "请输出地址：" << endl; cin >> address; aaa->personArr[aaa->person_size].address = address; aaa->person_size++; cout << "增加联系人胜利！" << endl; } else { cout << "联系人已满，请删除局部联系人再增加！" << endl; } system("pause"); system("cls");}显示联系人
void showperson(addressbook person){ if (person.person_size == 0) { cout << "联系人列表为空" << endl; } for (int i = 0; i < person.person_size; i++) { cout << i + 1 << "." << "姓名：" << person, personArr[i].name << " " << "性别：" << （person.personArr[i].sex == 1 ? "男"："女") << " " << "年龄：" << person.personArr[i].age << " " << "电话：" << person.personArr[i].phonenumber << " " << "住址：" << person.pearsonArr[i].address << " " << endl; } system("pause"); system("cls");}删除联系人
void deleteperson(addressbook * person)
{ string name; cout << "请输入您要删除的联系人姓名" << endl; cin >> name; int exist = isExist(person, name); if (exist != -1) { for (int i = exist; i < person->person_size; i++) { { person->personArr[i] = person->personArr[i + 1]; } (person->person_size)--; cout << "删除胜利！" << endl; } else { cout << "没有这个人！" << endl; } system("pause"); system("cls"); }查找联系人
void showperson(addressbook person){ if (person.person_size == 0) { cout << "联系人列表为空" << endl; } for (int i = 0; i < person.person_size; i++) { cout << i + 1 << "." << "姓名：" << person, personArr[i].name << " " << "性别：" << （person.personArr[i].sex == 1 ? "男"："女") << " " << "年龄：" << person.personArr[i].age << " " << "电话：" << person.personArr[i].phonenumber << " " << "住址：" << person.pearsonArr[i].address << " " << endl; } system("pause"); system("cls");批改联系人
void modifyperson(addressbook * person) { string name; cout << "请输出要批改的联系人姓名：" << endl; cin >> name; int exist = isExist(person, name); if (exist != -1) { string modifyName; cout << "请输出批改好的名字："; cin >> modifyName; if (modifysex == 1 || modifysex == 2) { person->personArr[exist].name = modifyName; while (true) { int modifysex; cout << "请输出批改后的性别（1.男 2.女）："; cin >> modifysex; if (modifysex == 1 || modifysex == 2) { person->personArr[exist].sex = modifysex; break; } else { cout << "您该当输出1或者2，请从新输出" << endl; } int modifyAge; cout << "请输出批改后的年龄："; cin >> modifyAge; person->personArr[exist].age = modifyAge; string modifyPhone; cout << "请输出批改后的电话："; cin >> modifyPhone; person->personArr[exist].phonenumber = modifyPhone; string modifyAddress; cout << "请输出批改后的住址："; cin >> modifyAddress; person->personArr[exist].address = modifyAddress; cout << "批改胜利" << endl; } else { cout << "没有查到这个名字的人，故无奈批改" << endl; } system("pause"); system("cls"); }清空联系人
void emptyperson(addressbook * person) { string ensure; cout << "您确定清空所有联系人吗，此操作不可逆，请审慎，如需清空，请输出：我批准" << endl; cin >> ensure; if (ensure == "我批准") { person->person_size = 0; cout << "清空联系人胜利" << endl; } else { cout << "撤销了清空联系人的操作" << endl; } system("pause"); system("cls"); }退出零碎
int isExist(addressbook* person, string name){ for (int i = 0; i < person->person_size; i++) { if (person->personArr[i].name == name) { return i; } return -1; }残缺代码为：
#include <iostream>#include<string.h>#include<windows.h>#include <stdlib.h>using namespace std;#define MAX 1000struct person{ string name; int sex{ }; int age{ }; string phonenumber; string address;};struct addressbook{ struct person personArr[MAX]; int person_size{ };};void showmenu(){ cout << "******************************" << endl; cout << "***********1.增加联系人**********" << 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.批改联系人**********" << endl; cout << "***********6.清空联系人*********" << endl; cout << "***********0.退出零碎***********" << endl;}void addperson(addressbook* aaa){ if (aaa->person_size < MAX) { string name; cout << "请输出姓名：" << endl; cin >> name; aaa->personArr[aaa->person_size].name = name; int sex; cout << "请输出对应性别 1--男 2--女" << endl; while (true) { cin >> sex; if ((sex == 1)) || (sex == 2)) { aaa->personArr[aaa->person_size].sex = sex; break; } else { cout << "您输出的有误，请从新查看后输出" << endl; } } }}int age = 0;cout << "请输出年龄" << endl;cin >> age;aaa->personArr[aaa->person_size].age = age;string phonenumeber;cout << "请输出电话：" << endl;cin >> phonenumber;aaa->personArr[aaa->person_size].phonenumeber = phonenumeber;string address;cout << "请输出地址：" << endl;cin >> address;aaa->personArr[aaa->person_size].phonenumber = phonenumeber;string address;cout << "请输出地址：" << endl;cin >> address;aaa->personArr[aaa->person_size].address = address;aaa->person_size++;cout << "增加联系人胜利！" << endl; } else { cout << "联系人已满，请删除局部联系人再增加！" << endl; } system("pause"); system("cls");}void showperson(addressbook person){ if (person.person_size == 0) { cout << "联系人列表为空" << endl; } for (int i = 0; i < person.person_size; i++) { cout << i + 1 << "." << "姓名：" << person, personArr[i].name << " " << "性别：" << （person.personArr[i].sex == 1 ? "男"："女") << " " << "年龄：" << person.personArr[i].age << " " << "电话：" << person.personArr[i].phonenumber << " " << "住址：" << person.pearsonArr[i].address << " " << endl; } system("pause"); system("cls");}int isExist(addressbook* person, string name){ for (int i = 0; i < person->person_size; i++) { if (person->personArr[i].name == name) { return i; } return -1; } void deleteperson(addressbook * person) { string name; cout << "请输入您要删除的联系人姓名" << endl; cin >> name; int exist = isExist(person, name); if (exist != -1) { for (int i = exist; i < person->person_size; i++) { { person->personArr[i] = person->personArr[i + 1]; } (person->person_size)--; cout << "删除胜利！" << endl; } else { cout << "没有这个人！" << endl; } system("pause"); system("cls"); } void modifyperson(addressbook * person) { string name; cout << "请输出要批改的联系人姓名：" << endl; cin >> name; int exist = isExist(person, name); if (exist != -1) { string modifyName; cout << "请输出批改好的名字："; cin >> modifyName; if (modifysex == 1 || modifysex == 2) { person->personArr[exist].name = modifyName; while (true) { int modifysex; cout << "请输出批改后的性别（1.男 2.女）："; cin >> modifysex; if (modifysex == 1 || modifysex == 2) { person->personArr[exist].sex = modifysex; break; } else { cout << "您该当输出1或者2，请从新输出" << endl; } int modifyAge; cout << "请输出批改后的年龄："; cin >> modifyAge; person->personArr[exist].age = modifyAge; string modifyPhone; cout << "请输出批改后的电话："; cin >> modifyPhone; person->personArr[exist].phonenumber = modifyPhone; string modifyAddress; cout << "请输出批改后的住址："; cin >> modifyAddress; person->personArr[exist].address = modifyAddress; cout << "批改胜利" << endl; } else { cout << "没有查到这个名字的人，故无奈批改" << endl; } system("pause"); system("cls"); } void emptyperson(addressbook * person) { string ensure; cout << "您确定清空所有联系人吗，此操作不可逆，请审慎，如需清空，请输出：我批准" << endl; cin >> ensure; if (ensure == "我批准") { person->person_size = 0; cout << "清空联系人胜利" << endl; } else { cout << "撤销了清空联系人的操作" << endl; } system("pause"); system("cls"); } int main() { int userselect = 0; struct addressbook aaa; aaa.peson_size = 0; cout << "请在下方输入您想抉择的性能（输出后面的数字即可）: " << endl; cin >> userselect; switch (userselect) { case 1: addPerson(&aaa); break; case 2: showPerson(aaa); break; case 3: deletePerson(&aaa); break; case 4: findPerson(&aaa); break; case 5: modifyPerson(&aaa); break; case 6: emptyPerson(&aaa); break; case 0: cout << "退出零碎胜利，欢迎您下次应用！" << endl; system("pause"); return 0; default: cout << "输出有误，请从新输出！" << endl; break; } } }