JavaScript之動畫縮放

來源:互聯網
上載者:User

標籤:art   oct   cli   縮放   java   width   rip   var   offset   

<!DOCTYPE html><html><head>    <title></title>    <style type="text/css">        .div{            width: 200px;            height: 200px;            background-color: lightgreen;        }    </style></head><body><div class="div"></div><script type="text/javascript">    window.onload=function(){        var div=document.getElementsByClassName(‘div‘)[0];        var timer=null;        function larger(obj,goal,speed){            var offsetwidth=obj.offsetWidth;            var offsetheight=obj.offsetHeight;            if(offsetwidth<goal&&offsetheight<goal){                obj.style.height=(offsetheight+speed)+‘px‘;                obj.style.width=(offsetwidth+speed)+‘px‘;                clearTimeout(timer);                timer=setTimeout(function(){                    larger(obj, goal, speed);                },50);            }            else{                clearTimeout(timer);            }        }        div.onclick=function(){            larger(this, 400, 10);        }    }</script></body></html>

 

JavaScript之動畫縮放

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