本文实例讲述了JS实现模拟风力的雪花飘落效果。分享给大家供大家参考。具体实现方法如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>雪花飘啊飘</title>
</head>
<style>
* {margin:0; padding:0; vertical-align:top;}
.xue{position:absolute;color:#fff;}
</style>
<body>
<div id="bbb"
style="position:absolute;top:0px;right:0px;width:400px;border:1px #000 solid;background:#fff;z-index:9;height:30px;">
</div>
<div id="box"
style="height:600px;position:relative;border:1px red solid;background:#000;overflow:hidden;">
</div>
<div
style="position:absolute;top:0px;right:400px;border:1px #000 solid;background:#fff;width:400px;height:30px;z-index:5;">
<input id="wind_id" value="10" />级风
<input id="wind_button" type=button value="雪花飘啊飘飘啊飘" />
</div>
<script>
var box = document.getElementById("box");
var i= 0,c,d,wind_time;
var all = 0,other = 0,wind=0;
box.style.width = '1000px';
document.getElementById("wind_button").onclick = function(){
clearTimeout(wind_time);wind = 0;
wind = parseInt(document.getElementById("wind_id").value);
wind_run(wind);
}
function gogo(){
var a = document.createElement("div");
a.innerHTML = '.';
a.id = "xue" + i;
a.className = "xue";
a.style.top = parseInt(box.style.height) * (Math.random() > 0.3 "godown(\""+a+"\",\""+e+"\","+speed+")",20)}
else{
clearTimeout(e);
removeElement(a1);
speed=null;
other++;
document.getElementById('bbb').innerHTML = "区域内还有"+(all-other)+"个雪花点."
};
};
function wind_run(wind){
var a = document.getElementById("box").getElementsByTagName('div');
for(var i = 0;i<a.length;i++){
a[i].style.left = parseInt(a[i].style.left) + wind +'px';
};
if(Math.abs(wind) > 0.1){wind_time = setTimeout("wind_run("+wind+")",20)}
else{clearTimeout(wind_time);wind = 0;};
};
gogo();
</script>
</body>
</html>
希望本文所述对大家的javascript程序设计有所帮助。
标签：
JS,模拟风力,雪花飘落
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