源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>享学课堂</title> </head> <body> <h1>JavaScript 语句</h1> <p>JavaScript代码块写在 { 和 }之间 </p> <button type="button" onclick="myFunction()">点击我!</button> <p id="demo1"></p> <p id="demo2"></p> <script> function myFunction() { document.getElementById("demo1").innerHTML = "Hello Dolly."; document.getElementById("demo2").innerHTML = "How are you?"; } </script> </body> </html>
运行结果