用户登录界面设计代码(用户登录界面设计代码是什么)
html网页设计：一个简单的登录界面代码！
!doctype html
html
head
meta charset="utf-8"
link href="main.css" type="text/css" rel="stylesheet"
title登陆界面/title
/head
body
div class="login_ico"
img src="images/login_ico.png"
/div
div class="login_putin"
ul
liinput type="text" /li
liinput type="password" /li
/ul
/div
div class="login_btn"
input type="submit" value="登陆"
/div
/body
/html
样式 ：
*{
margin:0;
padding:0;}
li{
list-style-type:none;
margin:0;
padding:0;}
a{
text-decoration:none;
color:#000;}
/*---------------------按钮-----------------------------*/
.login_putin ul li input{
margin: 0;
width:70%;
padding: 1em 2em 1em 5.4em;
-webkit-border-radius:.3em;
-moz-border-radius: .3em;
border: 1px solid #999;
}
.login_btn{
width:300px;
margin:40px auto 0 auto;
}
.login_btn input{
width:100%;
margin:0;
padding:.5em 0;
-webkit-border-radius:.3em;
-moz-border-radius: .3em;
border:#1263be solid 1px;
background:#1b85fd;
color:#FFF;
font-size:17px;
font-weight:bolder;
letter-spacing:1em;
}
.login_btn input:hover{
background:#1263be;
}
vb用户怎么登录界面？用户登陆的代码是多少？
vb登陆程序源代码\x0d\x0a\x0d\x0a你可以这样做建一个模块在里面输入下列\x0d\x0aPublic conn As ADODB.Connection\x0d\x0aSub main()\x0d\x0a Set conn = New ADODB.Connection\x0d\x0a conn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;" _\x0d\x0a + "User ID=sa;password=sa;Initial Catalog=您的数据库名;Data Source=127.0.0.1"\x0d\x0a conn.Open\x0d\x0afrom1.Show ’登录界面\x0d\x0aEnd Sub\x0d\x0a\x0d\x0a再在登录界面“确定”下写入如下代码：\x0d\x0aPrivate Sub Command1_Click()\x0d\x0a If id.Text = "" Then\x0d\x0a MsgBox "用户名不能为空！", vbOKOnly + vbInformation, "友情提示"\x0d\x0a id.SetFocus\x0d\x0a Exit Sub\x0d\x0a End If\x0d\x0a If password.Text = "" Then\x0d\x0a MsgBox "密码不能为空！", vbOKOnly + vbInformation, "友情提示"\x0d\x0a password.SetFocus\x0d\x0a Exit Sub\x0d\x0a End If\x0d\x0a\x0d\x0a Dim strSQl As String\x0d\x0a strSQl = "select * from Users where users_name='" Trim$(id.Text) "' and password='" Trim$(password.Text) "' "\x0d\x0a \x0d\x0a Dim str As New ADODB.Recordset\x0d\x0a Set str = New ADODB.Recordset\x0d\x0a str.CursorLocation = adUseClient\x0d\x0a str.Open strSQl, conn, adOpenStatic, adLockReadOnly\x0d\x0a \x0d\x0a With str\x0d\x0a If .State = adStateOpen Then .Close\x0d\x0a .Open strSQl\x0d\x0a If .EOF Then\x0d\x0a Try_times = Try_times + 1\x0d\x0a If Try_times = 3 Then\x0d\x0a MsgBox "您已经三次尝试进入本系统，均不成功，系统将自动关闭", vbOKOnly + vbCritical, "警告"\x0d\x0a Unload Me\x0d\x0a Else\x0d\x0a MsgBox "对不起，用户名不存在或密码错误 ！", vbOKOnly + vbQuestion, "警告"\x0d\x0a id.SetFocus\x0d\x0a id.Text = ""\x0d\x0a password.Text = ""\x0d\x0a End If\x0d\x0a Else\x0d\x0a \x0d\x0a Unload Me\x0d\x0a \x0d\x0a Form2.Show ’登录进入的另一个界面\x0d\x0a \x0d\x0a End If\x0d\x0a End With\x0d\x0a\x0d\x0aEnd Sub
关于VB设计中一个用户登录界面的代码
我好像看出来一点问题，，，
Adodc1.Recordset.Fields(1).Value对应是应该是数据库里的“密码”这个字段。
而你是用Adodc1.Recordset.Fields(1).Value
Combo1.Text
进行比较，肯定是比不来出什么正确的结果的，它俩天生就不相等。所以程序会继续向下运行。
用户名应该
对应Adodc1.Recordset.Fields(0).Value
VB设置用户和密码登录界面设计及代码 我是新手哦 先谢个
Const
Pwd="Admin"
Const
Usr="Admin"
加入两个文本框和一个按钮控件，2个文本框控件名分别为
UsrTxt
和
PwdTxt
按钮控件写代码:
if
UsrTxt
=
Usr
and
PwdTxt=Pwd
then
msgbox
"密码正确!",vbinformation,"提示"
else
msgbox
"密码错误!",vbinformation,"提示"
end
if
这是简单的密码登陆，通过更改常量在程序内部规定用户名和密码!其他的自己琢磨下或者给我发邮件
TimeDev@QQ.Com
JAVA中GUI登录界面设计源代码是什么？
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class Login {
private JFrame frame = new JFrame("登录");
private Container c = frame.getContentPane();
private JTextField username = new JTextField();
private JPasswordField password = new JPasswordField();
private JButton ok = new JButton("确定");
private JButton cancel = new JButton("取消");
public Login(){
frame.setSize(300,200);
c.setLayout(new BorderLayout());
initFrame();
frame.setVisible(true);
}
private void initFrame() {
//顶部
JPanel titlePanel = new JPanel();
titlePanel.setLayout(new FlowLayout());
titlePanel.add(new JLabel("系统管理员登录"));
c.add(titlePanel,"North");
//中部表单
JPanel fieldPanel = new JPanel();
fieldPanel.setLayout(null);
JLabel l1 = new JLabel("用户名:");
l1.setBounds(50, 20, 50, 20);
JLabel l2 = new JLabel("密 码:");
l2.setBounds(50, 60, 50, 20);
fieldPanel.add(l1);
fieldPanel.add(l2);
username.setBounds(110,20,120,20);
password.setBounds(110,60,120,20);
fieldPanel.add(username);
fieldPanel.add(password);
c.add(fieldPanel,"Center");
//底部按钮
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
buttonPanel.add(ok);
buttonPanel.add(cancel);
c.add(buttonPanel,"South");
}
public static void main(String[] args){
new Login();
}
}
javascript html 设计一个登录界面
注册页面代码：
!DOCTYPE?html
html?lang="en"
head
????meta?charset="UTF-8"
????title注册/title
/head
body
form?method="post"?onsubmit="return?false"?id="form"
????input?type="text"?name="username"?placeholder="用户名"br
????input?type="password"?name="password"?placeholder="密码"br
????input?type="password"?name="rePassword"?placeholder="再次输入密码"br
????input?type="submit"?onclick="register_user()"?value="注册"br
/form
a?href="login.html"去登录/a
script
????var?localDB?=?openDatabase('localDB',?'1.0',?'Test?DB',?2?*?1024?*?1024);
????localDB.transaction(function?(ts)?{
????????ts.executeSql('CREATE?TABLE?IF?NOT?EXISTS?user(username,password)')
????});
????function?register_user()?{
????????var?username?=?document.getElementsByTagName("input")[0].value;
????????var?password?=?document.getElementsByTagName("input")[1].value;
????????var?rePassword?=?document.getElementsByTagName("input")[2].value;
????????if(password?!=?rePassword)
????????{
????????????alert("两次输入的密码不同，请重新输入");
????????}else
?{
????????????localDB.transaction(function(ts){
????????????????ts.executeSql("INSERT?INTO?user?(username,password)?VALUES?('"+username+"','"+password+"');");
????????????????alert("注册成功");
????????????});
????????}
????}
/script
/body
/html
登录页面代码：
!DOCTYPE?html
html?lang="en"
head
????meta?charset="UTF-8"
????title登录/title
/head
body
form?onsubmit="return?false"?method="post"
????input?type="text"?placeholder="用户名"br
????input?type="password"?placeholder="密码"br
????input?type="submit"?value="登录"?onclick="login()"br
/form
a?href="register.html"去注册/a
script
????var?localDB?=?openDatabase('localDB',?'1.0',?'Test?DB',?2?*?1024?*?1024);
????localDB.transaction(function?(ts)?{
????????ts.executeSql("SELECT?*?FROM?user",[],function?(tx,?results)?{
????????????var?len?=?results.rows.length;
????????????if(len=0)
????????????{
????????????????localDB.transaction(function?(ts)?{
????????????????????ts.executeSql('CREATE?TABLE?IF?NOT?EXISTS?user(username,password)')
????????????????});
????????????}
????????});
????});
????function?login()?{
????????var?username?=?document.getElementsByTagName("input")[0].value;
????????var?password?=?document.getElementsByTagName("input")[1].value;
????????localDB.transaction(function?(ts)?{
????????????ts.executeSql("SELECT?*?FROM?user?WHERE?username='"+username+"';",[],function?(ts,?res)?{
????????????????if(res.rows.length=0)
????????????????{
????????????????????alert("登录失败，用户未注册");
????????????????}else?if?(password?==?res.rows[0].password)
????????????????{
????????????????????alert("登录成功,三秒后跳转到百度");
????????????????????setInterval(function?()?{
????????????????????????location.href?=?"";
????????????????????},3000);
????????????????}else
?{
????????????????????alert("登录失败，密码错误");
????????????????}
????????????});
????????})
????}
/script
/body
/html
以上代码使用了WEB SQL，还请选择合适的浏览器查看。