<html>
<head>
<script src="http://www.ren3.cn/Snow Demo/jsized.snow.min.js" type="text/javascript"></script>
<script>
/**
* This function takes 2 arguments
* First is the path to the directory with snowflake images
* Second is the maximum number of snowflakes, please do not
* set this number above 60 as it will impact the performance
*/
createSnow("", 60)//目录改为当前目录
</script>
</head>
<body>
测试
</body>
</html>
2、在该网页目录 下 新添加 四张雪花图片 命名规则（snow0.gif snow1.gif snow2.gif snow3.gif）
...this.el.onclick = a
this.parent.appendChild(this.el)
另外添加点击函数a()
