// 運動函式
function move(ele,obj,cb=function(){}){
    var timerObj = {};
    for(let attr in obj){
        timerObj[attr] = setInterval(function(){
            let target = obj[attr];
            if(attr == "opacity"){
                target *= 100;
            }
            let l = getStyle(ele,attr);
            
 
if(attr === "opacity"){
                l *= 100;
            }
            l = parseFloat(l); 
            if((target-l)/10>0){
                percent = Math.ceil((target-l)/10);
            }else{
                percent = Math.floor((target-l)/10);
            }
            l += percent;
            if
 
(l==target){
                clearInterval(timerObj[attr]);
                delete timerObj[attr];
                let k = 0;
                for(let i in timerObj){
                    k++;
                }
                if(k==0){
                    cb();
                }
            }
            
 
if(attr === "opacity"){
                ele.style[attr] = l/100  
            }else{
                ele.style[attr] = l + "px"
            }
            
        },20)
    }
}


// 獲取樣式的函式
function getStyle(ele,attr){
    if(window.getComputedStyle){
        return window.getComputedStyle(ele)[attr];
    }else{
        return ele.currentStyle[attr];
    }
}