Method: 1. Directly embed the js code into the script tag pair with the syntax "<script>js code</script>"; 2. Write the js code into a ".js" file, Use the "" statement to introduce the js file.
The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.
There are two ways to combine (connect) js and HTML
The first one: directly embed the js code into the script tag pair Medium
Grammar
<script type="text/javascript"> js代码; </script>
Second: Use the script tag to introduce an external js file
*** Create a js file , write js code
*** and then use the following statement to introduce
<script type="text/javascript" src="js文件路径"></script>
When using the second method, do not write js code in the script tag, as it will not be executed.
Example:
<html>
<head>
<title>World</title>
<style type="text/css">
</style>
</head>
<body>
<script type="text/javascript">
alert("aaaaaa");
</script>
</body>
</html><html>
<head>
<title>World</title>
<style type="text/css">
</style>
</head>
<body>
<script type="text/javascript" src="1.js">
//alert("bbbbb"); 没有效果
</script>
</body>
</html>[Related recommendations: javascript learning tutorial]
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