function getStyle(obj,attr){?? ?if (obj.currentStyle) {?? ??? ?return obj.currentStyle[attr]; ?? ?}?? ?else{?? ??? ?return getComputedStyle(obj,false)[attr]; ?? ?}}function startMove(obj,json,fn){?? ?var flag = true; ?? ?clearInterval(obj.timer);?? ?obj.timer = setInterval(function(){?? ??? ?for(var attr in json){?? ??? ??? ??? ??? ??? ?var iCur = 0;?? ??? ??? ?if(attr == "opacity"){?? ??? ??? ??? ?iCur=Math.round(parseFloat(getStyle(obj,attr))*100);?? ??? ??? ?}?? ??? ??? ?else{?? ??? ??? ??? ?iCur = parseInt(getStyle(obj,attr));?? ??? ??? ?}?? ??? ??? ??? ??? ??? ?var iSpeed = (json[attr]-iCur)/8 ?? ??? ??? ?iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed)； ?? ??? ??? ??? ??? ??? ?if (iCur != json[attr]) {?? ??? ??? ??? ?flag = false;?? ??? ??? ?}?? ??? ??? ?if(attr == "opacity"){?? ??? ??? ??? ?obj.style.filter="alpha(opacity:'+iCur+iSpeed+)+')";?? ???????????? obj.style.opacity=(iCur+iSpeed)/100;?? ??? ??? ?}?? ??? ??? ?else{?? ??? ??? ??? ?obj.style[attr]=iCur+iSpeed+"px";?? ??? ??? ?}?? ??? ?}?? ??? ?if(flag){?? ??? ??? ?clearInterval(obj.timer); ?? ??? ??? ?if(fn){?? ??? ??? ??? ?fn(); ??? ??? ??? ?}?? ??? ?}?? ?},30)}
JS動畫效果課程里的完美運動框架那節(jié)，照著寫但是帶入運行的時候沒反應(yīng)，能不能幫忙看一下我有沒有寫錯么？謝謝了
Missvia
2016-01-06 16:07:55
