Home
HTML
HTML
Tryit: HTML
运行 ❯
×
Change Orientation
Change Theme, Dark/Light
<!DOCTYPE html> <html> <head> <title>页面标题</title> <script> function myFunction() { document.getElementById("demo").innerHTML = "Hello JavaScript!"; } </script> </head> <body> <h1>我的网页</h1> <p id="demo">一个段落</p> <button type="button" onclick="myFunction()">试一试</button> </body> </html>