警告/报错：Can't get DOM width or height. Please check dom.clientWidth and dom.clientHeight. They should not be 0.For example, you may need to call this in the callback of window.onload
.翻译过来是：无法获得DOM宽度或高度。请检查dom。clientWidth和dom. clienttheight。它们不应该是0。例如，你可能需要在window.onload的回调中调用这个。
直接检查DOM的宽或者渲染的时间即可
