Hello, everyone, my name is wangzirui32, today we will learn how to make js scripts automatically write HTML code.
First, open a js file, name it hello.js, and enter:
// 一个用于测试写入HTML代码的hello函数
// 用法：调用时在HTML页面上写入“Hello！”
function hello(){
// document.write函数 用来写入括号中的HTML源码（为字符串）
document.write("<h1>Hello！</h1>");
}
// 调用一次
hello();
Then, open an HTML file, put it in the same directory as hello.js, and enter:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JavaScript 测试写入HTML</title>
</head>
<body>
<script src="hello.js"></script>
</body>
</html>
Open it with a browser, and you can see the loaded "Hello!".