1. 滚动条：首先,我们要求在用户移动了滚动条(scroll),或者改变了浏览器大小(resize)时重新设置容器的位置. 需要注意的是,我们接着需要显式调用resetLiveMessengerPosition方法来对容器的位置进行初始化. 然后jQuery开始展现了它的神奇之处,
2. 卷动：必须使用宣告光标(cursor)的方式.光标分成下列两种型态:1.非卷动式的光标(non_scrolling cursor),可以依序(sequential)取出所有资料在 declare 宣告一个可卷动(scroll)指针后,使用 fetch 移动指针第八章 萤幕画面(form)的制作field_tag 为屏幕画面辨识字段的旗竿,
1. (带有文字的)卷轴，长纸卷
A scroll is a long roll of paper or a similar material with writing on it.
e.g. Ancient scrolls were found in caves by the Dead Sea.
死海旁边的山洞里发现了古代的卷轴。
2. (绘制或雕刻的)涡卷形装饰
A scroll is a painted or carved decoration made to look like a scroll.
e.g. ...a handsome suite of chairs incised with Grecian scrolls.
一套雕刻着古希腊式涡卷形装饰的造型美观的椅子
3. (在屏幕上)滚动(文档),滚屏
If you scroll through text on a computer screen, you move the text up or down to find the information that you need.
e.g. I scrolled down to find 'United States of America'.
我向下滚动文档搜索“美利坚合众国”。