密码框的显示与隐藏
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.box{
position:relative;
width: 400px;
border-bottom:1px red solid;
margin: 100px auto;
}
.box input{
width: 350px;
height: 30px;
border:0;
outline:none;
}
img{
position:absolute;
top:10px;
right:20px;
width: 48px;
height: 18px;
}
</style>
</head>
<body>
<div class="box">
<label class="" for="">
<img src="关闭眼睛.png" alt="" id = "eye">
</label>
<input type="password" name="" id="pass">
</div>
<script>
var eye = document.getElementById('eye');
var pass = document.getElementById('pass');
//绑定事件
var flag = 0;**//先定义一个变量，初始值为0表示密码框**
eye.onclick = function(){
if(flag == 0){**//为0的时候，将密码框切换为文本框**
pass.type = 'text';
eye.src = '眼睛.png'
flag = 1;**//变化完之后flag就不等与 0就会执行else操作**
}else{
pass.type='password';
eye.src='关闭眼睛.png'
flag = 0;
}
}
</script>
</body>
</html>