function?getStyle(obj,attr){
if(obj.currentStyle){
return?obj.currentStyle[attr];
}
else{
return?getComputedStyle(obj,false)[attr];
}
}
function?starMove(obj,json,fn){
var?flag?=?true;
for(var?attr?in?json){
clearInterval(obj.timer);
obj.timer?=?setInterval(function(){
//1.取當前值
var?iCur?=?0;
if(attr?==?'opacity'){
iCur?=?Math.round(parseInt(getStyle(obj,attr))*100);
}
else{
iCur?=?parseInt(getStyle(obj,attr));
}
//2.算速度
var?iSpeed?=?(json[attr]-iCur)/8;
iSpeed?=?iSpeed?>?0???Math.ceil(iSpeed)?:?Math.floor(iSpeed);
//3.檢測停止
if(iCur?!==?json[attr]){
flag?=?false;
}
else{
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)
}
2015-12-25
謝謝前輩。。。
2015-12-24
function?starMove(obj,?json,?fn)?{ ????var?flag?=?true; ????for?(var?attr?in?json)?{ ????????clearInterval(obj.timer); ????????obj.timer?=?setInterval(function?()?{ ????????????//1.取當前值 ????????????var?iCur?=?0; ????????????if?(attr?==?'opacity')?{ ????????????????iCur?=?Math.round(parseInt(getStyle(obj,?attr))?*?100); ????????????}?else?{ ????????????????iCur?=?parseInt(getStyle(obj,?attr)); ????????????} ????????????//2.算速度 ????????????var?iSpeed?=?(json[attr]?-?iCur)?/?8; ????????????iSpeed?=?iSpeed?>?0???Math.ceil(iSpeed)?:?Math.floor(iSpeed); ????????????//3.檢測停止 ????????????if?(iCur?!==?json[attr])?{ ????????????????flag?=?false; ????????????}?else?{ ????????????????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) ????} }這個方法 括號嵌套有問題，自己好好看一下