getTop (e) { ????????var offset=e.offsetTop; ????????if(e.offsetParent!=null) offset+=this.getTop(e.offsetParent); ????????return offset; ?},
js 获取距离顶部的相对高度
getTop (e) { ????????var offset=e.offsetTop; ????????if(e.offsetParent!=null) offset+=this.getTop(e.offsetParent); ????????return offset; ?},
js 获取距离顶部的相对高度