注册时的密码强度

2018-06-18 04:12:29来源:未知 阅读 ()

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密码强度有4个状态,分别如下图。

无密码状态

密码低级状态

密码中级状态

密码高级状态

实现的代码主要如下:

HTML代码

<input name="password" type="PassWord" onKeyUp="CheckIntensity(this.value)">
<table border="0" cellpadding="0" cellspacing="0">
<tr align="center">
<td id="pwd_Weak" class="pwd pwd_c"> </td>
<td id="pwd_Medium" class="pwd pwd_c pwd_f">无</td>
<td id="pwd_Strong" class="pwd pwd_c pwd_c_r"> </td>
</tr>
</table>

CSS代码

.pwd{width:50px;height:20px;line-height:14px;padding-top:2px;} 
.pwd_f{color:#BBBBBB;} 
.pwd_c{background-color:#F3F3F3;border-top:1px solid #D0D0D0;border-bottom:1px solid #D0D0D0;border-left:1px solid #D0D0D0;} 
.pwd_Weak_c{background-color:#FF4545;border-top:1px solid #BB2B2B;border-bottom:1px solid #BB2B2B;border-left:1px solid #BB2B2B;} 
.pwd_Medium_c{background-color:#FFD35E;border-top:1px solid #E9AE10;border-bottom:1px solid #E9AE10;border-left:1px solid #E9AE10;} 
.pwd_Strong_c{background-color:#3ABB1C;border-top:1px solid #267A12;border-bottom:1px solid #267A12;border-left:1px solid #267A12;} 
.pwd_c_r{border-right:1px solid #D0D0D0;} 
.pwd_Weak_c_r{border-right:1px solid #BB2B2B;} 
.pwd_Medium_c_r{border-right:1px solid #E9AE10;} 
.pwd_Strong_c_r{border-right:1px solid #267A12;}

JS代码

function CheckIntensity(pwd) {
        var Mcolor, Wcolor, Scolor, Color_Html;       
        var m = 0;      
        //匹配数字
        if (/\d+/.test(pwd)) {
            debugger;
            m++;
        };
        //匹配字母
        if (/[A-Za-z]+/.test(pwd)) {         
            m++;
        };
        //匹配除数字字母外的特殊符号
        if (/[^0-9a-zA-Z]+/.test(pwd)) {            
            m++;
        };
       
        if (pwd.length <= 6) { m = 1; }
        if (pwd.length <= 0) { m = 0; }       
        switch (m) {
            case 1:
                Wcolor = "pwd pwd_Weak_c";
                Mcolor = "pwd pwd_c";
                Scolor = "pwd pwd_c pwd_c_r";
                Color_Html = "弱";
                break;
            case 2:
                Wcolor = "pwd pwd_Medium_c";
                Mcolor = "pwd pwd_Medium_c";
                Scolor = "pwd pwd_c pwd_c_r";
                Color_Html = "中";
                break;
            case 3:
                Wcolor = "pwd pwd_Strong_c";
                Mcolor = "pwd pwd_Strong_c";
                Scolor = "pwd pwd_Strong_c pwd_Strong_c_r";
                Color_Html = "强";
                break;
            default:
                Wcolor = "pwd pwd_c";
                Mcolor = "pwd pwd_c pwd_f";
                Scolor = "pwd pwd_c pwd_c_r";
                Color_Html = "无";
                break;
        }
        document.getElementById('pwd_Weak').className = Wcolor;
        document.getElementById('pwd_Medium').className = Mcolor;
        document.getElementById('pwd_Strong').className = Scolor;
        document.getElementById('pwd_Medium').innerHTML = Color_Html;
    }    

 

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