<script>标签--基础标签
[2019.06.24 学习笔记1]
1.定义客户端脚本(如javascript);
2.包含脚本文件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=“UTF-8”>
<title>标题 </title>
<script type="text/javascript">
alert("弹出框");
</script>
</head>
<body>
</body>
</html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset=“UTF-8”> <title>标题 </title> <script type="text/css"> p{color:red;} </script> </head> <body> </body> </html>
3.引入外部脚本(js)
html文件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=“UTF-8”>
<title>标题 </title>
<script type="text/javascript" src="index.js"></script>
</head>
<body>
</body>
</html>
javascript文件
alert("弹出框");