#include<iostream>
#include<stdio.h>
#include<stdlib.h>
#include<string>
#include<fstream>
#include<windows.h>
#include<malloc.h>
using namespace std;
typedef struct List//链表结构体
{
string name;
string street;
string city;
string state;
string phone;
struct List* next;
}list, * linklist;
void creatlist(linklist& p);
void insertlist(linklist& p, list* q);
linklist search(linklist p);
void del(linklist& p, linklist s);
void tou();
void print(linklist p);
void xianshi(linklist p);
void tianjiaxinxi(linklist& p);
void shanchu(linklist& p);
void gai(linklist& p);
void savelist(linklist p);
void loadlist(linklist& p);
void menu();
int main()
{
linklist l = NULL;
int choice;//自己输入的选项
int sum = 7;
while (choice != sum) // <------------------------------------------------------你的 chooice 未初始值，只是声明而已，没有任何有效值
{
menu();
cin >> choice;
switch (choice)//判断用户选项并做以下内容
{
case 1:
{
tianjiaxinxi(l);
break;
}
case 2:
{
shanchu(l);
break;
}
case 3:
{
linklist d = search(l);
system("cls");
if (d)
{
system("cls");
tou();
print(d);
Sleep(1500);
}
else
{
system("cls");
cout << "查无此人！" << endl;
Sleep(1500);
}
break;
}
case 4:
tou();
xianshi(l);
system("pause");
break;
case 5:
gai(l);
break;
case 6:
loadlist(l);
break;
case 7:
savelist(l);
break;
}
}
return 0;
}
void creatlist(linklist& p)//链表初始化
{
//申请头结点
p = new list;
p->next = NULL;
}
void insertlist(linklist& p, list* q)//插入
{
list* a = NULL;
a = p;
q->next = p->next;
p->next = q;
}
linklist search(linklist p)//查找信息
{
string name;
cout << "请输入你想要查找的名字：" << endl;
cin >> name;
linklist a = p->next;
while (a)
{
if (a->name == name)
break;
else
a = a->next;
}
return a;
}
void del(linklist& p, linklist s)//删除信息
{
linklist q, d;
q = p->next;
if (q != s)
{
d = q;
q = q->next;
}
else
{
d->next = q->next; // <-------------------------------- 注意你的 d 没有分配空间，不能用 next，只能用来指向地址
delete q;
cout << "删除成功!" << endl;
}
}
void tou()
{
cout << "姓名" << "\t";
cout << "城市" << "\t";
cout << "电话" << "\t\t\t";
cout << "国家" << "\t";
cout << "街道" << endl;
}
void print(linklist p)//显示一条信息
{
cout << p->name << "\t";
cout << p->city << "\t";
cout << p->phone << "\t\t\t";
cout << p->state << "\t";
cout << p->street << "\t" << endl;
}
void xianshi(linklist p)//显示信息
{
if (!p)
{
cout << "无通讯人信息！" << endl;
}
else
{
linklist j = p->next;
while (j)
{
print(j);
j = j->next;
}
}
}
void tianjiaxinxi(linklist& p)//添加信息
{
list* L = new list;//分配新的空间
system("cls");
while (true)//名字
{
cout << "请输入名字" << endl;
cin >> L->name;
int shuzi;
cout << "是否保存？（保存请按“1”）（取消请按“2”）" << endl;
cin >> shuzi;
if (shuzi == 1)
{
insertlist(p, L);
cout << "保存成功！" << endl;
Sleep(1000);
break;
}
else if (shuzi == 2)
{
cout << "重新输入！" << endl;
}
else if (shuzi != 1 || shuzi != 2)
{
cout << "请输入有效数字!" << endl;
}
}
system("cls");
while (true)//城市
{
cout << "请输入城市" << endl;
cin >> L->city;
int shuzi;
cout << "是否保存？（保存请按“1”）（取消请按“2”）" << endl;
cin >> shuzi;
if (shuzi == 1)
{
insertlist(p, L);
cout << "保存成功！" << endl;
Sleep(1000);
break;
}
else if (shuzi == 2)
{
cout << "重新输入！" << endl;
}
else if (shuzi != 1 || shuzi != 2)
{
cout << "请输入有效数字!" << endl;
}
}
system("cls");
while (true)//国家
{
cout << "请输入国家" << endl;
cin >> L->state;
int shuzi;
cout << "是否保存？（保存请按“1”）（取消请按“2”）" << endl;
cin >> shuzi;
if (shuzi == 1)
{
insertlist(p, L);
cout << "保存成功！" << endl;
Sleep(1000);
break;
}
else if (shuzi == 2)
{
cout << "重新输入！" << endl;
}
else if (shuzi != 1 || shuzi != 2)
{
cout << "请输入有效数字!" << endl;
}
}
system("cls");
while (true)//街道
{
cout << "请输入街道" << endl;
cin >> L->street;
int shuzi;
cout << "是否保存？（保存请按“1”）（取消请按“2”）" << endl;
cin >> shuzi;
if (shuzi == 1)
{
insertlist(p, L);
cout << "保存成功！" << endl;
Sleep(1000);
break;
}
else if (shuzi == 2)
{
cout << "重新输入！" << endl;
}
else if (shuzi != 1 || shuzi != 2)
{
cout << "请输入有效数字!" << endl;
}
}
system("cls");
while (true)//电话
{
cout << "请输入电话" << endl;
cin >> L->phone;
int shuzi;
cout << "是否保存？（保存请按“1”）（取消请按“2”）" << endl;
cin >> shuzi;
if (shuzi == 1)
{
insertlist(p, L);
cout << "保存成功！" << endl;
Sleep(1000);
break;
}
else if (shuzi == 2)
{
cout << "重新输入！" << endl;
}
else if (shuzi != 1 || shuzi != 2)
{
cout << "请输入有效数字!" << endl;
}
}
system("cls");
}
void shanchu(linklist& p)//删除
{
string name;
linklist l;
cout << "请输入你要删除的名字：";
cin >> name;
linklist a = p->next;
del(p, a);
system("pause");
}
void gai(linklist& p)//修改
{
system("cls");
linklist b = search(p);
cout << "需要修改的名字：";
cin >> b->name;
cout << "需要修改的街道：";
cin >> b->street;
cout << "需要修改的城市：";
cin >> b->city;
cout << "需要修改的国家；";
cin >> b->state;
cout << "需要修改的电话：";
cin >> b->phone;
cout << "修改成功！";
Sleep(2000);
}
void savelist(linklist p)//保存文件
{
linklist j = p->next;
FILE* fp = NULL;
if ((fp = fopen("通讯信息.txt", "wb")) == NULL)
{
cout << "无文件内容";
exit(1); //异常退出
}
fp = fopen("通讯信息.txt", "wb");
while (j)
{
fprintf(fp, "%s %s %s %s %s ", j->name.c_str(), j->city.c_str(), j->phone.c_str(), j->state.c_str(), j->street.c_str());
j = j->next;
}
fclose(fp);
cout << "已保存到文件！" << endl << "欢迎下次使用!" << endl;
}
void loadlist(linklist& p)
{
FILE* fp = NULL;
if ((fp = (fopen("通讯信息.txt", "rb"))) == NULL)
{
cout << "找不到文件!" << endl;
Sleep(3000);
}
fp = fopen("通讯信息.txt", "rb");
linklist k = NULL;
while (1)
{
k = new list;
if (fread(k, sizeof(list), 1, fp) > 0)
{
insertlist(p, k);
}
else
{
break;
}
}
fclose(fp);
cout << "加载中....." << endl;
Sleep(1000);
cout << "加载成功！" << endl;
}
void menu()//菜单
{
cout << "***********************************" << endl;
cout << " 通讯管理系统" << endl;
cout << " 1.输入通讯人信息" << endl;
cout << " 2.删除通讯人信息" << endl;
cout << " 3.查找通讯人信息" << endl;
cout << " 4.显示通讯人信息" << endl;
cout << " 5.修改通讯信息" << endl;
cout << " 6.加载文件" << endl;
cout << " 7.保存文件并退出" << endl;
cout << "***********************************" << endl;
cout << "请选择:";
}
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狗仔卡
发表于 2022-3-27 17:02:37
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