方案2

suerprisePlus

2024-06-27 12a2d994bace6430a49e390b2ed3df9e00af6168

1
define(["exports"],(function(e){"use strict";function n(e,n){return null!=e?e:n}n.EMPTY_OBJECT=Object.freeze({}),e.defaultValue=n,e.defined=function(e){return null!=e}}));