<!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 solid #ccc;
margin: 100px auto;
}
.box input {
width: 370px;
height: 30px;
outline: none;
border: 0;
}
.box img {
position: absolute;
top: 2px;
right: 2px;
width: 24px;
}
</style>
</head>
<body>
<div class="box">
<label for="">
<img src="images/close.png" alt="" id="eye">
</label>
<input type="password" name="" id="pwd">
</div>
<script>
var eye = document.getElementById(eye);
var pwd = document.getElementById(pwd);
var flag = 0; //默认是0
eye.onclick = function() {
//点击事件 类型改为文本
if (flag == 0) {
pwd.type = text; //类型改为文本框
eye.src = images/open.png;
flag = 1; // flag赋值为1 ，再次点击不会执行if语句 执行else语句
} else {
pwd.type = password;
eye.src = images/close.png;
flag = 0;
}
}
</script>
</body>
</html>
