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 代码由一系列JavaScript语句构成.</p> <p id="demo"></p> <script> var x, y, z; x = 5; y = 6; z = x + y; document.getElementById("demo").innerHTML = z; </script> </body> </html>
运行结果