<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
</head>
<body>
<h2>HTMLのセット</h2>
<div id="01"><p>Hello World!</p></div>
<div id="02"><p>Hello Sweden!</p></div>
<p id="demo"></p>
<script>
$(document).ready(function() {
$("#02").html("<p>Hello World!</p>");
});
</script>
</body>
</html>
