1回答

• 

  慕粉3225051

  2016-05-24 09:37:50

  move.js

  function getStyle(obj,attr){

  if(obj.currentStyle){

  return obj.currentStyle[attr];//currentStyle针对IE浏览器

  }else{

  return getComputedStyle(obj,false)[attr];//getComputedStyle针对火狐浏览器

  }

  }

  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 speed = (json[attr]-icur)/8;

  speed = speed>0?Math.ceil(speed):Math.floor(speed);

  if(icur != json[attr]){

  flag=false;

  }

  
  

  if(attr=='opacity'){

  obj.style.filter='alpha(opacity:'+(icur+speed)+')';

  obj.style.opacity=(icur+speed)/100;

  }else{obj.style[attr] = icur+speed+'px';}

  
  

  }

  if(flag){

  clearInterval(obj.timer);

  if(fn){

  fn();

  }

  }

  },30)

  }

  
  

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