代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.box{
width: 300px;
height: 50px;
margin: 100px auto;
position: relative;
border: 1px solid rgb(226, 223, 223);
}
input{
height: 40px;
width: 200px;
outline: none;
border: none;
}
.box span{
height: 40px;
width: 50px;
position: absolute;
background: url(./img/open.png) no-repeat;
right: 0;
}
.box .active{
background: url(./img/close.png) no-repeat;
}
</style>
</head>
<body>
<div class="box">
<input type="text" name="" id=""><span></span>
</div>
<script>
const span=document.querySelector('.box span')
const ipt=document.querySelector('input')
//定义一个开关变量
let flag=true
span.addEventListener('click',function() {
this.classList.toggle('active')
//为真 输入框类型为密码框
if(flag){
ipt.type='password'
flag=!flag
}else{//否则为文本框
ipt.type='text'
flag=!flag
}
})
</script>
</body>
<ml>
