动态滚动条（适合于外部文本的动态载入寂寞火山开发） 缓动滚动条（适合于文本和图片等最好置于SWF内部） 上下滚动（适合于杂志等没有滚动条的情况，文本最好置于SWF内部，王汝义开发）-Dynamic scroll bar (for dynamic loading of external text lonely volcanic development)　slow moving scroll bar (for text and pictures for the best placed within SWF)　up and down scroll (suitable for magazines, there is no scroll bar of the text SWF is best placed within the Wang Ruyi Development)