特效描述：利用HTML5实现空间粒子背景动画特效，利用HTML5实现空间粒子背景动画特效
代码结构
1. 引入JS
<script src='js/gameCanvas-3.0.js'></script> <script src="js/index.js"></script> <script src='js/gameCanvas-3.0.js'></script> <script src="js/index.js"></script>
2. HTML代码
<!DOCTYPE html> <html lang="en" > <head> <meta charset="UTF-8"> <title></title> </head> <body> </body> </html>
