abstract：<!DOCTYPE html><html><head><meta charset="UTF-8"><title>Document</title><script src="https://code.jquery.com/jquery-3.1.1.min.js"></scr
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<style>
.red{
color: red;
}
</style>
<script type="text/javascript">
$(function(){
$('.btn1').click(function(){
$('p').toggleClass('red')
$('span').text('hello word')
$('h3').html('<h1>我變成h1標題</h1>')
$('p').animate({'fontSize':'40px'},3000)
$('div').animate({'left':'400px'},1000)
})
$('.btn2').click(function(){
$('div').animate({
'height':'400px',
'width':'300px',
'opacity':'0.3'
},1000)
})
$('.btn3').click(function(){
$('input').val('改變了里面的內容')
})
})
</script>
<style type="text/css">
div{width:100px;height:100px;background:red;}
</style>
</head>
<body>
<button class="btn1">點擊字體變大</button>
<p>賽第六屆泛咖啡颯颯的浪費大聲道</p>
<span style="display:block;margin:30px;">速度快撒颯颯的</span>
<h3>我是標題3</h3>
<button class="btn2">盒子改變</button>
<div></div>
<button class="btn3" style="width:50px;height:30px;display:block;margin-top:30px";>val值</button>
<input type="text" value="值">
</body>
</html>