由于某些原因，当我使用window.onload = function（）{而不是document.ready = function（）{
我想使用文档准备就绪的原因是，我正在使用tweenmax补间的图像加载得不那么快，因此动画与其他所有内容都关闭了。
<script>
var footer = document.getElementById("footer");
var topper = document.getElementById("topper");
var box = document.getElementById("photo");
window.onload = function() {
TweenMax.from(box, 4, {height:"200px", width:"200px", top:"50%", left:"50%", marginTop:"-100px", marginLeft:"-100px", ease:Power3.easeIn});
TweenMax.from(topper, 4, {top:"50%", left:"50%", marginTop:"-100px", marginLeft:"-105px", width:"210px", ease:Power3.easeOut});
TweenMax.from(footer, 4, {bottom:"50%", left:"50%", marginBottom:"-100px", marginLeft:"-105px", width:"210px", ease:Power3.easeOut});
};
</script>
$(document).ready(function() {}); 是jQuery函数，因此您必须先添加jQuery参考，然后再尝试运行它。
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
var footer = document.getElementById("footer");
var topper = document.getElementById("topper");
var box = document.getElementById("photo");
$(document).ready(function() {
TweenMax.from(box, 4, {height:"200px", width:"200px", top:"50%", left:"50%", marginTop:"-100px", marginLeft:"-100px", ease:Power3.easeOut}); // <-- edited Power3.easeIn to Power3.easeOut
TweenMax.from(topper, 4, {top:"50%", left:"50%", marginTop:"-100px", marginLeft:"-105px", width:"210px", ease:Power3.easeOut});
TweenMax.from(footer, 4, {bottom:"50%", left:"50%", marginBottom:"-100px", marginLeft:"-105px", width:"210px", ease:Power3.easeOut});
});
</script>
编辑：更新以更改
TweenMax.from(box, 4, {height:"200px", width:"200px", top:"50%", left:"50%", marginTop:"-100px", marginLeft:"-100px", ease:Power3.easeIn});
到
TweenMax.from(box, 4, {height:"200px", width:"200px", top:"50%", left:"50%", marginTop:"-100px", marginLeft:"-100px", ease:Power3.easeOut});
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