密碼強度檢測函數（正則表達式）

2020-03-16 21:23:25

字體：大中小

來源：轉載

供稿：網友

一款使用正則表達式來檢測密碼強度的函數代碼如下:

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

<head>

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

<title>OA登錄</title>

<style type="text/css">



</style>

<SCRIPT>

function showImage(){

var imgObj=new Image(); //創建一個Image對象

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

if(typeof(imgObj)=="object"){ //判斷imgObj裝載過后是否為對象，防止異常操作

var width=0;

var height=0;

width=imgObj.width+20; //+20是因為IE方式的默認邊距

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); // 判斷圖片是否裝載完成，只有在裝載完成后才能取到寬高值

}

}else{

alert("系統錯誤");

}

}

//showImage();

</SCRIPT>

<script type="text/javascript">

//From BBS.51JS.COM By 網絡東西

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","強"],

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 = "密碼較弱";

},

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 = "高強";

}

}

</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">

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        <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">貝因美冠軍寶貝大賽專用信息平臺入口</font></a></span>

                          <p align="center"><font color=#ff0000>用戶名或密碼錯誤，請重新輸入。</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>帳號/編號:</td>

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

      <td align=right>密碼: <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">密碼強度檢測</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=" 登陸 " onclick="return CheckData();"/>

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        <tr align="right">

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

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

        打勾后表示下次自動登陸



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      </div></td>

    </tr>

  </table>

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

</form>

<script language=javascript>

function CheckData()

{

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

{

  alert("請輸入登錄用戶名。")

  document.loginform.LoginName.focus();

  return false;

}

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

{

  alert("登錄用戶名不能超過100個字。")

  document.loginform.LoginName.focus();

  return false;

}



return true;

}

</script>

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



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