先編寫一個(gè)連接數(shù)據(jù)庫的類
using System;
namespace ATM
{
?public class CheckProcess
?{
??public int tid;
??ConnDB db;
??public CheckProcess()
??{
??? db=new ConnDB();
??}
??public bool checkUser(string name,string pass)
??{
???int a=db.examine(name,pass);
???if(a!=0)
???{
????return true;
???}
???return false;
??}
??public bool checknumber(string str){
??float f=float.Parse(str);
???if(f <=5000){
???return true;
???}
??return false;
??}
??public bool checkinput(string str)
??{
???char[] c= str.ToCharArray();
???for(int i=0;i<c.Length;i++)
???{
????if(c[i]<'.'||c[i]>'9'||c[i]=='/')
????{
?????return false;
????}
???}
???return true;
??}
??public bool checkPassword(string str)
??{
???char[] c= str.ToCharArray();
???for(int i=0;i<c.Length;i++)
???{
????if(c[i]<'.'||c[i]>'9')
????{
?????return false;
????}
???}
???return true;
??}
?}
}
下面是處理用戶輸入的類:
using System;
namespace ATM
{
?public class CheckProcess
?{
??public int tid;
??ConnDB db;
??public CheckProcess()
??{
??? db=new ConnDB();
??}
??public bool checkUser(string name,string pass)
??{
???int a=db.examine(name,pass);
???if(a!=0)
???{
????return true;
???}
???return false;
??}
??public bool checknumber(string str){
??float f=float.Parse(str);
???if(f <=5000){
???return true;
???}
??return false;
??}
??public bool checkinput(string str)
??{
???char[] c= str.ToCharArray();
???for(int i=0;i<c.Length;i++)
???{
????if(c[i]<'.'||c[i]>'9'||c[i]=='/')
????{
?????return false;
????}
???}
???return true;
??}
??public bool checkPassword(string str)
??{
???char[] c= str.ToCharArray();
???for(int i=0;i<c.Length;i++)
???{
????if(c[i]<'.'||c[i]>'9')
????{
?????return false;
????}
???}
???return true;
??}
?}
}
Form1部分代碼：
??private void button1_Click(object sender, System.EventArgs e)
??{
???CheckProcess pro=new CheckProcess();
???name=text1.Text;
???pass=text2.Text;
???if(!name.Equals("")||!pass.Equals(""))
???{
????if(pro.checkUser(name,pass))
????{
?????ConnDB db=new ConnDB();
?????int a=db.getID(name,pass);
?????ATM.Form2 f2=new Form2();
?????f2.setUserID(a,name,pass);
?????this.Hide();
?????f2.Show();
????}
????else
????{
?????MessageBox.Show("產(chǎn)生錯(cuò)誤!");
????}
???}
???else
???{
????label3.ForeColor=System.Drawing.Color.Red;
????label3.Text="請輸入正確的用戶名或密碼!";
???}
??}
Form2部分代碼：
??private int id;
??private string name;
??private string pwd;
??public void setUserID(int id,string name,string pwd){
??this.id=id;
??this.name = name;
??this.pwd=pwd;
??}
??private void Form2_Load(object sender, System.EventArgs e)
??{
???this.Text="歡迎用戶"+name+"登陸請選擇您需要的操作";
??}
??private void button5_Click(object sender, System.EventArgs e)
??{
???ATM.Form1 f1=new Form1();
???this.Close();
???f1.Show();
??}
??private void button1_Click(object sender, System.EventArgs e)
??{
???ConnDB db=new ConnDB();
???ATM.Form3 f3=new Form3();
???string price=db.getPrice(id);
???f3.setUserID(id,price);
???f3.Show();
??}
??private void button3_Click(object sender, System.EventArgs e)
??{
???ConnDB db=new ConnDB();
???string price=db.getPrice(id);
???MessageBox.Show("你當(dāng)前帳戶余額為:"+price+"元(RMB)????????? ","用戶"+name+"您好!",MessageBoxButtons.OK,MessageBoxIcon.Information);
??}
??private void button2_Click(object sender, System.EventArgs e)
??{
???ConnDB db=new ConnDB();
???string str =db.getPrice(id);
???ATM.Form4 f4=new Form4();
???f4.setUser(id,str);
???f4.Show();
??}
??private void button4_Click(object sender, System.EventArgs e)
??{
???ATM.Form5 f5=new Form5();
???f5.setUserName(name,pwd,id);
???f5.Show();
??}
form3部分代碼：
??private void button1_Click(object sender, System.EventArgs e)
??{
???ConnDB db=new ConnDB();
???CheckProcess p=new CheckProcess();
???if(!this.textBox1.Text.Equals("")&&this.textBox1.Text.Length<10)
???{
????if(p.checkinput(this.textBox1.Text)&&p.checknumber(this.textBox1.Text))
????{
?????bool flan=db.ReduceMoney(this.textBox1.Text,id,price);
?????if(flan)
?????{
??????MessageBox.Show("輸入金額已成功取出???????????? ","Information",MessageBoxButtons.OK,MessageBoxIcon.Information);
??????this.Close();
?????}
?????else
?????{
??????MessageBox.Show("對不起!您的帳戶不足","Information",MessageBoxButtons.OK,MessageBoxIcon.Error);
??????this.textBox1.Text="";
?????}???
????}
????else
????{
?????MessageBox.Show("您的輸入有問題！","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
?????this.textBox1.Text="";
????}
???}
???else
???{
????MessageBox.Show("產(chǎn)生錯(cuò)誤請重新填寫!!","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
????this.textBox1.Text="";
???}
???}
form4部分代碼：
??private void button1_Click(object sender, System.EventArgs e)
??{
???ConnDB db=new ConnDB();
???CheckProcess p=new CheckProcess();
???if(!this.textBox1.Text.Equals("")&&this.textBox1.Text.Length < 10)
???{
????if(p.checkinput(this.textBox1.Text))
????{
?????bool flan =db.AddMoney(this.textBox1.Text,id);
?????if(flan)
?????{
??????MessageBox.Show("輸入金額已成功存入帳戶","Information",MessageBoxButtons.OK,MessageBoxIcon.Information);
??????this.Close();
?????}
?????else
?????{
??????MessageBox.Show("對不起!? 輸入金額沒有存入? 請重新輸入!","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
??????this.textBox1.Text="";
?????}?????
????}
????else
????{
?????MessageBox.Show("請輸入數(shù)字!","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
?????this.textBox1.Text="";
????}
???}
???else
???{
????MessageBox.Show("產(chǎn)生錯(cuò)誤!請重新輸入!","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
????this.textBox1.Text="";
???}
??}
form5部分代碼:
??private void button1_Click(object sender, System.EventArgs e)
??{
???CheckProcess p=new CheckProcess();
???if(!this.textBox1.Text.Equals("")||!this.textBox2.Text.Equals(""))
???{
????if(this.textBox1.Text.Length == 6 || this.textBox2.Text.Length == 6)
????{
?????if(p.checkPassword(this.textBox1.Text)&&p.checkPassword(this.textBox2.Text))
?????{
??????if(this.textBox1.Text.Equals(pwd))
??????{
???????ConnDB db=new ConnDB();
???????bool flan=db.checkUserpass(this.textBox2.Text,id);
???????if(flan)
???????{
????????MessageBox.Show("修改成功完成??? ","Update Success",MessageBoxButtons.OK,MessageBoxIcon.Information);
????????this.Close();
???????}
???????else
???????{
????????MessageBox.Show("對不起!??? 修改失敗!??? ","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
????????this.Close();
???????}
??????}
??????else
??????{
???????MessageBox.Show("對不起！您的密碼不正確!??? ","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
???????this.textBox1.Text="";
???????this.textBox2.Text="";
??????}
?????}
?????else
?????{
??????MessageBox.Show("請輸入0~9之間的整數(shù)??? ","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
??????this.textBox1.Text="";
??????this.textBox2.Text="";
?????}???????
????}
????else{
????MessageBox.Show("密碼太長或太短請輸入6位密碼??? ","ERROR",MessageBoxButtons.OK,MessageBoxIcon.Error);
????this.textBox1.Text="";
????this.textBox2.Text="";
????}
???}
???else
???{
????MessageBox.Show("請輸入內(nèi)容????????? ","What way?",MessageBoxButtons.OK,MessageBoxIcon.Warning);
???}
??}