好玩的js代码，canvas-nest.js

效果图：javascript <script type="text/javascript" color="0,205,205" opacity='0.7' zIndex="-2" count="99" src="//cdn.bootcss.com/canvas-nest.js/1.0.1/canvas-nest.min.js"></script>只须要在页面上加上js就能够。屏幕上会有离子运动

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