源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>开源教程(ossoft.cn)</title> </head> <body> <p id="demo"></p> <script> var x, y, z; x = 5; y = 6; z = (x + y) * 10; document.getElementById("demo").innerHTML = z; </script> </body> </html>
运行结果