【www.bbyears.com--正则表达式】
效果图:
代码如下:
代码如下
*{margin: 0;padding: 0;}
body{background:#ccc;}
#demo{width:400px;padding:50px;background:#efefef;border: 1px solid #999;line-height:40px;margin:100px auto 0;}
#strength_length{height:6px;width:100px;padding:2px;border: 1px solid #ccc;}
.lv1{background:red;}
.lv2{background:blue;width:200px;}
.lv3{background:green;width:300px;}
密码强度:
<scripttype="text/javascript">
(function(window){
function $(id){
return document.getElementById(id);
};
var arr = ["","低","中","高"];
// 获取对象
var ipt = $("ipt"),strength = $("strength"),strLength = $("strength_length");
// 密码输入事件
ipt.onkeyup = function(){
var s = 0;
var txt = this.value;
if( /[a-zA-Z]/.test(txt) ){
s++;
};
if( /[0-9]/.test(txt) ){
s++;
};
if( /[^0-9a-zA-Z]/.test(txt) ){
s++;
};
if( txt.length <6){
s=0;
};
strength.innerHTML=arr[s];
strLength.className="lv"+ s;
}
})(window)
</script>