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1、用户登录注册#include stdafx.h#include iostream#include string#include stdlib.h#include string#include conio.h#include fstream#include windows.husing namespace std;struct userstring name;string password;void nterface(user custum);int main()void login();void regist();int options;cout endl endl endl endl;cou
2、t 1.登录 endl;cout 2.注册 endl;cout (请输入选项并按回车) endl;cout options;while (options!=1&options!=2)cout options; cout options;if (options =1)system(CLS);login();if (options = 2)system(CLS);regist();system(CLS);login();return 0;void login()string name;char *password = new char20;cout endl endl endl endl endl
3、;cout name;cout 0)cout test test;passwordi- = 0;elseif (i 20)cout *;passwordi = test;i+;passwordi = 0;ifstream fin;fin.open(user.txt,ios_base:in);if (fin.fail()cout 打开文件失败 custumer.name custumer.password)if (custumer.name = name&custumer.password = password)cout 登录成功！ custumer.name custumer.password
4、)elsecoutendl 用户名或密码错误！ endl;Sleep(3000);system(CLS);login();void regist()string name;char *password = new char20;cout endl endl endl endl endl;ifstream fin;fin.open(user.txt, ios_base:in);user custumer;int i = 0;cout name;while (fin custumer.name custumer.password)if (custumer.name = name) i+;if (i
5、 0)cout 该用户名已被注册！ endl; regist();cout 0)cout test test;passwordi- = 0;elseif (i 20)cout *;passwordi = test;i+;passwordi = 0;cout 0)cout test test;password2i- = 0;elseif (i 20)cout *;password2i = test;i+;password2i = 0;if (strcmp(password,password2)!=0)cout endl 两次输入密码不一致，请重新注册。 endl;Sleep(3000);system(CLS);regist();elsecoutendl 注册成功！撸一发庆祝一下;ofstream fout;fout.open(user.txt,ios_base:out|ios_base:app);fout name password endl;fout.close();coutendl 3秒后跳到登录界面.;Sleep(3000);void nterface(user custum)system(CLS);cout 您好！custum.name endlendl;
