https://blog.csdn.net/DCGJ666/article/details/82467961
MFC关于实现小程序登陆注册功能的实现
1.首先我们在头文件和源文件中分别添加InfoFile.h文件和InfoFile.cpp文件，用来进行数据的读写操作。
// 注册窗口的变量声明
private:
CString m_register1; //注册窗口用户名edit控件变量
CString m_register2; //注册窗口密码edit控件变量
CString m_register3; //注册窗口确认密码edit控件变量
1
2
3
4
5
6
//InfoFile.h文件的具体代码
#pragma once
#include <list>
#include <fstream>
#include <iostream>
#include <string>
#define F_LOGIN "./login.ini"
using namespace std;
class InfoFile
{
public:
InfoFile();
~InfoFile();
void writeRegister(char* name, char* pwd); //将注册信息写入操作
void ReadRegister(CString &name, CString &pwd); //从文件中读取用户名密码的操作
};
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
//InfoFile.cpp的具体代码
#include "stdafx.h"
#include "InfoFile.h"
InfoFile::InfoFile()
{
}
InfoFile::~InfoFile()
{
}
void InfoFile::ReadRegister(CString &name, CString &pwd)
{
ifstream ifs;
ifs.open(F_LOGIN); //打开文件
char buf[1024] = {0};
ifs.getline(buf, sizeof(buf));//读取用户名信息
name = CString(buf);
ifs.getline(buf, sizeof(buf));//读取密码信息
pwd = CString(buf);
ifs.close();
}
void InfoFile::writeRegister(char* name, char* pwd)
{
ofstream ofs;
ofs.open(F_LOGIN);
ofs<<name<<endl;//写入用户名信息
ofs<<pwd<<endl;//写入密码信息
ofs.close();
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
2.进入注册对话框的确定按钮进行函数描述
void CD_register::OnBnClickedButton3()
{
UpdateData(TRUE);//更新变量信息
InfoFile file;
CStringA tmp;
CStringA tmp2;
if(m_register2 != m_register3)
{
MessageBox(_T("Inconsistent password!"));
}
else
{
tmp = m_register1;
tmp2 = m_register2;
file.writeRegister(tmp.GetBuffer(), tmp2.GetBuffer());//将char类型转化为CString,并进行用户名和密码的写入
MessageBox(_T("Register success!"));
}
// TODO: Add your control notification handler code here
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
3.进入登陆界面进行函数配置
UpdateData(TRUE);
InfoFile file;
CString name, pwd;
file.ReadRegister(name, pwd);
if(name == m_UserName)
{
if(pwd == m_UserPassword)
{
CD_story dlg;
dlg.DoModal();//打开登录后的界面
}
else
{
MessageBox(_T("UserPassword is error!"));
}
}
else
{
MessageBox(_T("UserName is error!"));
}