javascript实现仿银行密码输入框效果的代码

网络编程 2025/11/3 佚名

3 2 1

效果：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
 <head> 
 <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
 <title> 密码输入框 </title> 
 <meta name="generator" content="Microsoft FrontPage 6.0"/> 
 <meta name="author" content="lin.x"/> 
 <meta name="keywords" content=""/> 
 <meta name="description" content=""/> 
 <style type="text/css"> 
 <!-- 
 *{font-size:12px;font-family:verdana;color:#339933;} 
#contain{margin-left:64px;padding:3px;padding-bottom:7px;border:1px solid #339933;border-top:7px solid #339933;width:125px;height:145px;display:none;} 
[xmlns] #contain{padding-left:5px;width:113px;} 
 .nbox,.text{float:left;border:1px solid #339933;border-top:2px solid #339933;} 
 .nbox{margin:5px;} 
 .text{margin:5px 4px;} 
 a{padding:4px 8px;text-decoration:none;line-height:2;} 
 a:hover{background-color:#ACE89B;} 
 .text a{padding:5px 4px 4px 3px;} 
 --> 
 </style> 
 <script type="text/javascript"> 
function rand() { 
  return Math.floor(Math.random()*10); 
} 
var rangenum = new Array(); 
var tem; 
for (var i = 0; i<10; i++) { 
  rangenum.push(i); 
} 
for (var i = 0; i<10; i++) { 
  var a = rand(); 
  var b = rand(); 
  tem = rangenum[a]; 
  rangenum[a] = rangenum[b]; 
  rangenum[b] = tem; 
} 
function creatnums() { 
  for (i=0; i<rangenum.length; i++) { 
    document.writeln("<div class=\"nbox\" ><a href=\"#\"onclick=\"input("+rangenum[i]+")\">"+rangenum[i]+"</a></div>"); 
  } 
  document.writeln("<div class=\"text\"><a href=\"#\" onclick='input(-1)'>退格</a><a href=\"#\" onclick=\"clearinput()\">清除</a></div>"); 
} 
function input(i) { 
  var pwd=document.form.pwd.value; 
  if (pwd.length<8||i == '-1') { 
    if (i == '-1') { 
      document.form.pwd.value = pwd.substring(0,pwd.length-1); 
    } else { 
      document.form.pwd.value = pwd+i; 
    } 
    clearTimeout(timer); 
    timer=setTimeout("hiddenpad();document.getElementById('OK').focus()",4000) 
     
  } 
  else{clearTimeout(timer);alert("最多输入8位!");hiddenpad();} 
} 
function clearinput() { 
  document.form.pwd.value=""; 
} 
var timer 
function showpad(){ 
  document.getElementById('contain').style.display="block"; 
  clearTimeout(timer) 
  timer=setTimeout("hiddenpad()",3000) 
} 
function hiddenpad(){ 
  document.getElementById('contain').style.display="none"; 
} 
function noinput(){ 
var pwd=document.form.pwd.value; 
document.form.pwd.value = pwd.substring(0,pwd.length-2); 
} 
 </script> 
 </head> 
 <body> 
 <form name="form" action="https://www.jb51.net"> 
  请输入密码 
 <input type="password" name="pwd" onclick="showpad()" onkeydown="return false;" size="8"> 
 <input type="button" value=" OK " onclick="hiddenpad()" id="OK"> 
</form> 
  <div id="contain"> 
 <script type="text/javascript"> 
 creatnums(); 
 </script> 
 </div> 
 </body> 
</html>

以上所述是小编给大家介绍的javascript实现仿银行密码输入框效果的代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！

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