abstract：<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title>jquery</title> <script type="text/javascript"src="jquery-3.3.1.min.js"
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>jquery</title>
<script type="text/javascript"src="jquery-3.3.1.min.js">
</script>
</head>
<body>
<script type="text/javascript">
//基础语法
$(document).ready(function(){
$str="变量"
alert($str);
$("div").hide()//隐藏div
$("button").click(function(){
$("div").show()
})//显示div
})
</script>
<div style="width: 100px;height: 100px;background: pink;"></div>
<button>点击</button>
</body>
</html>
Correcting teacher：灭绝师太Correction time：2019-01-04 09:14:09
Teacher's summary：测试的比较简单奥！下次可以额外拓展点，带案例练习一下！