密码强度检测函数（正则表达式）

2020-03-16 21:23:25

字体：大中小

来源：转载

供稿：网友

一款使用正则表达式来检测密码强度的函数代码如下:

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>OA登录</title>

<style type="text/css">



</style>

<SCRIPT>

function showImage(){

var imgObj=new Image(); //创建一个Image对象

imgObj.src="http://www.beingmate.com/images/banner_chang_add.gif"; //装载Image源

if(typeof(imgObj)=="object"){ //判断imgObj装载过后是否为对象，防止异常操作

var width=0;

var height=0;

width=imgObj.width+20; //+20是因为IE方式的默认边距

height=imgObj.height+20;

if(width!=0&&height!=0){

window.open(imgObj.src,"Imagehow", "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=" +( width )+ ",height=" +( height));

}else{

setTimeout("showImage()", 100); // 判断图片是否装载完成，只有在装载完成后才能取到宽高值

}

}else{

alert("系统错误");

}

}

//showImage();

</SCRIPT>

<script type="text/javascript">

//From BBS.51JS.COM By 网络东西

var $ = function(v){return document.getElementById(v);}

function isSecurity(v){

if (v.length < 3) { iss.reset();return;}

var lv = -1;

if (v.match(/[a-z]/ig)){lv++;}

if (v.match(/[0-9]/ig)){lv++;}

if (v.match(/(.[^a-z0-9])/ig)){lv++;}

if (v.length < 6 && lv > 0){lv--;}

iss.reset();

switch(lv) {

case 0:

iss.level0();

break;

case 1:

iss.level1();

break;

case 2:

iss.level2();

break;

default:

iss.reset();

}

}

var iss = {

color:["CC0000","FFCC33","66CC00","CCCCCC"],

text:["弱","中","强"],

width:["50","100","150","10"],

reset:function(){

$("B").style.backgroundColor = iss.color[3];

$("B").style.width = iss.width[3];

$("A").innerHTML = "";

},

level0:function(){

$("B").style.backgroundColor = iss.color[0];

$("B").style.width = iss.width[0];

$("A").innerHTML = "密码较弱";

},

level1:function(){

$("B").style.backgroundColor = iss.color[1];

$("B").style.width = iss.width[1];

$("A").innerHTML = "中";

},

level2:function(){

$("B").style.backgroundColor = iss.color[2];

$("B").style.width = iss.width[2];

$("A").innerHTML = "高强";

}

}

</script>

<style type="text/css">



</style>

</head>

<body background="BG.gif" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">

<table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0">

  <tr>

    <td align="center">

      <table width="500" border="0" cellpadding="0" cellspacing="2" bgcolor="#427CD5">

        <tr>

          <td><table width="600" height="350" border="0" cellpadding="0" cellspacing="1" bgcolor="#FFFFFF">

              <tr>

                <td valign="top" background="bg.jpg"><table width="100%" border="0" cellspacing="0" cellpadding="0">

                    <tr>

                      <td width="13%" height="126"> </td>

                      <td width="87%"> </td>

                    </tr>

                    <tr>

                      <td> </td>

                      <td align="right"><div align="left"> <span class="font14"><a href="http://www.beingmate.com/user_login/" target="_blank"><font color="#FF3300">贝因美冠军宝贝大赛专用信息平台入口</font></a></span>

                          <p align="center"><font color=#ff0000>用户名或密码错误，请重新输入。</font></p>

<form name="loginform" method="post" action="Main.asp" target="_parent">

  <div align="left"></div>

  <table border=0 width="55%" cellspacing=1 cellpadding=3>

    <tr>

      <td width="25%" align=right>帐号/编号:</td>

      <td width="25%"><input name=LoginName type=text size=10 maxlength=20 class="doc_txt" value=""></td>

      <td align=right>密码: <input name="Pwd" type="Password" size=10 maxlength=20 class="doc_txt" value="" onkeyup="isSecurity(this.value);"></td>

    </tr>

    <tr>

      <td height="50" colspan="3" align=right><div align="center">

        <table width="100%" border="0" cellspacing="0" cellpadding="0">

          <tr>

            <td width="36%" align="right"><font class="red" id="A">密码强度检测</font> </td>

            <td width="64%" valign="top">

<table height="8" border="1" align="left" cellpadding="0" cellspacing="0" bordercolor="#EEEEEE" style="border-collapse:collapse;">

<tr>

<td bgcolor="#EEEEEE" width="1" align="center" valign="middle" id="B"></td>

</tr>

</table></td>

          </tr>

        </table>





      <table width="180" border="0" cellspacing="0" cellpadding="0">

        <tr>

          <td width="83" align="right"><label>

            <input type="submit" name="Submit" value=" 登陆 " onclick="return CheckData();"/>

          </label>

              </td>

                <td width="97" align="center"><a href="USER/REG.ASP" target="_blank"><font color="#FFFFFF">申请OA帐号</font></a></td>

            </tr>

        <tr align="right">

          <td colspan="2">  </td>

            </tr>

        </table>

            <input name="login_auto" type="checkbox" id="login_auto" value="1" >

        打勾后表示下次自动登陆



  <marquee behavior="scroll" scrollamount="3" direction="left" width="150">

    <font color="#FFFFFF"></font>

    </marquee>





      </div></td>

    </tr>

  </table>

  <div align="left"></div>

</form>

<script language=javascript>

function CheckData()

{

if(jtrim(document.loginform.LoginName.value)=="")

{

  alert("请输入登录用户名。")

  document.loginform.LoginName.focus();

  return false;

}

if(jtrim(document.loginform.LoginName.value).length>100)

{

  alert("登录用户名不能超过100个字。")

  document.loginform.LoginName.focus();

  return false;

}



return true;

}

</script>

<script language=javascript src="inc/jtrim.js"></script>



                      </div></td>

                    </tr>

                  </table>

                  <div align="right"><a href="http://2006.babyschool.com.cn

" target="_blank"><span class="font14"><font color="#FFFFFF">2006贝因美冠军宝贝大赛省级晋级赛进行时 </font></span></a><a href="http://oa.beingmate.com/help/" target="_blank"><font color="#EFEFEF">







                    帮助文档</font></a> <a href="feedback.asp" target="_blank"><font color="#EFEFEF">意见反馈</font></a><span class="font14"><font color="#EFEFEF">

                     </font></span><a href="http://oa.beingmate.com/help/" target="_blank"><font color="#EFEFEF"></font></a>



                    <font color="#0061CE">

                    222.212.7.171

                   </span> </font> </div></td>

              </tr>

            </table></td>

        </tr>

      </table></td>

  </tr>

</table>

</body>

</html>