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>在HTML，JavaScript语句是由浏览器执行.</p> <p id="demo"></p> <script> document.getElementById("demo").innerHTML = "Hello Dolly."; </script> </body> </html>
运行结果