JS正则表达式验证密码强度

本文实例为大家分享了JS正则表达式验证密码强度的具体代码，供大家参考，具体内容如下

代码1：

 
 


 #dv{
  width: 300px;
  height:200px;
  position: absolute;
  left:300px;
  top:100px;
 }
 .strengthLv0 {
  height: 6px;
  width: 120px;
  border: 1px solid #ccc;
  padding: 2px;
 }
 
 .strengthLv1 {
  background: red;
  height: 6px;
  width: 40px;
  border: 1px solid #ccc;
  padding: 2px;
 }
 
 .strengthLv2 {
  background: orange;
  height: 6px;
  width: 80px;
  border: 1px solid #ccc;
  padding: 2px;
 }
 
 .strengthLv3 {
  background: green;
  height: 6px;
  width: 120px;
  border: 1px solid #ccc;
  padding: 2px;
 }



 密码
 
 
  密码强度：
  
  
 



 

 
 


 #dv{
  width: 300px;
  height:200px;
  position: absolute;
  left:300px;
  top:100px;
 }
 .strengthLv0 {
  height: 6px;
  width: 120px;
  border: 1px solid #ccc;
  padding: 2px;
 }
 
 .strengthLv1 {
  background: red;
  height: 6px;
  width: 40px;
  border: 1px solid #ccc;
  padding: 2px;
 }
 
 .strengthLv2 {
  background: orange;
  height: 6px;
  width: 80px;
  border: 1px solid #ccc;
  padding: 2px;
 }
 
 .strengthLv3 {
  background: green;
  height: 6px;
  width: 120px;
  border: 1px solid #ccc;
  padding: 2px;
 }



 密码
 
 
  密码强度：
  
  
 

function my$(id) {
 return document.getElementById(id);
}