这是一个简单的通讯录，需要连接数据库，功能比较简单，易于实现，实验报告中含代码，相对来说，没有很大的难度，有需要的同学可以做个简单的参考，希望大家多多包涵，多多关照，也希望可以在这个平台上认识更优秀的你们。
2022-05-19 10:31:29
2.58MB
1
附录：源程序
//-------------------主窗体 查询与浏览---------------------------------------
#include
#pragma hdrstop
#include "Unit1.h"
#include "Unit2.h"
#include "Unit3.h"
#include "Unit4.h"
#include "Unit5.h"
#include "Unit6.h"
#pragma package(smart_init)
#pragma resource "*.dfm"
TFmain *Fmain;
bool onshow=false;
__fastcall TFmain::TFmain(TComponent* Owner)
: TForm(Owner)
{
}
void __fastcall TFmain::N5Click(TObject *Sender)
{
Close();//退出程序
}
void __fastcall TFmain::SpeedButton3Click(TObject *Sender)
{
DataModule3->ADOQuery1->First() ;
StatusBar1->Panels->Items[0]->Text="数据指向第一个";
}
void __fastcall TFmain::SpeedButton1Click(TObject *Sender)
{
DataModule3->ADOQuery1->Prior() ;
StatusBar1->Panels->Items[0]->Text="数据指向上一个";
}
void __fastcall TFmain::SpeedButton2Click(TObject *Sender)
{
DataModule3->ADOQuery1->Next() ;
StatusBar1->Panels->Items[0]->Text="数据指向下一个";
}
void __fastcall TFmain::SpeedButton4Click(TObject *Sender)
{
DataModule3->ADOQuery1->Last() ;
StatusBar1->Panels->Items[0]->Text="数据指向最后";
}
void __fastcall TFmain::Button2Click(TObject *Sender)
{
//添加新的数据
Fadd->Caption="添加数据";
DataModule3->ADOQuery1->Append() ;
Fadd->ShowModal() ;
}
void __fastcall TFmain::FormClose(TObject *Sender, TCloseAction &Action)
{
//对退出程序做确认处理
if(MessageBox(this->Handle,"确定要退出吗？","提示",MB_YESNO+MB_ICONQUESTION) == IDNO)
Action=caNone;
}
void __fastcall TFmain::N10Click(TObject *Sender)
{
AboutBox->ShowModal() ; //显示关于对话框
}
void __fastcall TFmain::Button4Click(TObject *Sender)
{
//以下为查找语句
AnsiString sql;
if(Edit1->Text=="")return;
if( ComboBox1->Text =="精确")sql=" ='"+Edit1->Text+"';";
else sql=" like '%"+Edit1->Text+"%';";
sql="select * from renshi where "+ComboBox2->Text+sql;
StatusBar1->Panels->Items[0]->Text=sql;
DataModule3->ADOQuery1->Active =false;
DataModule3->ADOQuery1->SQL->Clear();
DataModule3->ADOQuery1->SQL->Add(sql);
DataModule3->ADOQuery1->Active =true;
if(DataModule3->ADOQuery1->RecordCount==0)
StatusBar1->Panels->Items[1]->Text="无符合条件数据";
else StatusBar1->Panels->Items[1]->Text="符合条件数据个数为："+IntToStr(DataModule3->ADOQuery1->RecordCount);
}
void __fastcall TFmain::Button6Click(TObject *Sender)
{
//以下为显示所有数据
AnsiString sql;
sql="select * from renshi;";
StatusBar1->Panels->Items[0]->Text="显示全部数据";
DataModule3->ADOQuery1->Active =false;
DataModule3->ADOQuery1->SQL->Clear();
DataModule3->ADOQuery1->SQL->Add(sql);
DataModule3->ADOQuery1->Active =true;
if(DataModule3->ADOQuery1->RecordCount==0)
StatusBar1->Panels->Items[1]->Text="无符合条件数据";
else StatusBar1->Panels->Items[1]->Text="数据总量为："+IntToStr(DataModule3->ADOQuery1->RecordCount);
}
void __fastcall TFmain::Button1Click(TObject *Sender)
{
//刷新显示
DataModule3->ADOQuery1->Active =false;
DataModule3->ADOQuery1->Active =true;
}
void __fastcall TFmain::N9Click(TObject *Sender)
{
//帮助内容
ShowMessage("\
大家好，虽然只是一个简单的程序但是也要写帮助。\n\
简单的操作如下：\n\
一、打开程序。\n\
二、可以进行数据的添加、删除、浏览、查找\n\
三、关闭。\n\
谢谢使用！\n\
");
}
void __fastcall TFmain::Button3Click(TObject *Sender)
{
//数据删除操作
AnsiString printstr="确定删除编号为"+DataModule3->ADOQuery1->FieldByName("编号")->AsString+"的数据吗？";
if(MessageDlg(printstr,mtWarning,TMsgDlgButtons() << mbOK << mbCancel, 0)==1)
{
DataModule3->ADOQuery1->Delete() ;
StatusBar1->Panels->Items[0]->Text="数据已经删除";
}
}
void __fastcall TFmain::N3Click(TObject *Sender)
{
//更改显示字体
if(FontDialog1->Execute())Fmain->Font=FontDialog1->Font;
}
void __fastcall TFmain::N12Click(TObject *Sender)
{
//更改窗体颜色
if(ColorDialog1->Execute())
{
Fmain->Color=ColorDialog1->Color;//主窗体
Fadd->Color=ColorDialog1->Color; //添加、修改窗体
}
}
void __fastcall TFmain::N13Click(TObject *Sender)
{
//更改数据域颜色
if(ColorDialog1->Execute())
DBGrid1->Color=ColorDialog1->Color;
}
void __fastcall TFmain::N11Click(TObject *Sender)
{
Fshow->QuickRep1->Preview();//打印数据
}
void __fastcall TFmain::Button5Click(TObject *Sender)
{
Fadd->Caption="修改数据";
Fadd->ShowModal() ; //修改数据
}
void __fastcall TFmain::FormShow(TObject *Sender)
{
if(onshow==false)
{
Fwelcome->ShowModal() ;
onshow=true;
return;
}
}
//--------------------------------------------------------------------------
//------------系统封面------------------------------------------------------
#include
#pragma hdrstop
#include "Unit2.h"
#include "Unit1.h"
#pragma package(smart_init)
#pragma resource "*.dfm"
TFwelcome *Fwelcome;
int logintime=15; //进入系统等待时间X秒
__fastcall TFwelcome::TFwelcome(TComponent* Owner)
: TForm(Owner)
{
}
void __fastcall TFwelcome::Timer1Timer(TObject *Sender)
{
if(logintime==0){
Timer1->Enabled=false;
Close();
}
logintime--;
SpeedButton1->Caption ="进入("+IntToStr(logintime)+")";
}
void __fastcall TFwelcome::SpeedButton2Click(TObject *Sender)
{
Application->Terminate() ;
}
void __fastcall TFwelcome::SpeedButton1Click(TObject *Sender)
{
logintime=15;
Timer1->Enabled=false;
Close();
}
//--------------------------------------------------------------------------
//---------------------数据修改窗体-----------------------------------------
#include
#pragma hdrstop
#include "Unit4.h"
#include "Unit3.h"
#pragma package(smart_init)
#pragma resource "*.dfm"
TFadd *Fadd;
__fastcall TFadd::TFadd(TComponent* Owner)
: TForm(Owner)
{
}
void __fastcall TFadd::Button1Click(TObject *Sender)
{
if(DBEdit1->Text =="")return;
DataModule3->ADOQuery1->Refresh() ;
Close();
}
void __fastcall TFadd::Button2Click(TObject *Sender)
{
DataModule3->ADOQuery1->Cancel() ;
Close();
}
void __fastcall TFadd::FormClose(TObject *Sender, TCloseAction &Action)
{
DataModule3->ADOQuery1->Cancel() ;
}
//--------------------------------------------------------------------------
2022-05-08 10:16:57
316KB
1
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4.73MB
1
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2021-12-07 19:07:56
56.61MB