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Js實現簡單的小球運動特效，js小球特效
廢話不多說了，直接給大家貼js代碼了，具體代碼如下所示：
<!DOCTYPE html><html><head><title></title><meta http-equiv="content-type" content="text/html;charset=utf-"/></head><body style="background:pink;"><div id="ball" style="position:absolute;" onmouseover="stop()" onmouseout="jixu()"><img src="http://img.taobaocdn.com/imgextra/i//TBfGvsdpXXXXbDXXXXXXXXXXXX-.gif"/></div><script type="text/javascript">//定義局部變數var directX=;//定義x軸方向var directY=;//定義y軸方向var ballX=;//定義x軸座標var ballY=;//定義y軸座標var speed=;//定義一個速度var myball=document.getElementById("ball");function ballMove(){ballX=ballX+directX*speed;ballY=ballY+directY*speed;//改變div的left,top的值myball.style.left=ballX+"px";myball.style.top=ballY+"px";//判斷x軸什麼時候轉向if(ballX+myball.offsetWidth>=document.documentElement.clientWidth||ballX<=){//clientWidth瀏覽器不帶捲軸的寬度;clientHeight瀏覽器不帶工具列功能表列以及捲軸等的高度directX=-directX;//offsetWidth可以返回一個對象的實際寬度(不帶單位)offsetHeight類同}//判斷y軸何時轉向if(ballY+myball.offsetHeight>=document.documentElement.clientHeight||ballY<=){directY=-directY;}}var stopmove=setInterval("ballMove()",);function stop(){clearInterval(stopmove);}function jixu(){var stopmove=setInterval("ballMove()",); ;}</script></body></html>
以上代碼是比較簡單，希望對大家使用Js實現簡單的小球運動效果有所協助！
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