scrollJpane的运用实例！利用ScrollBar的功能使它可以利用滚动轴滚动窗口，乍看之下我们并不会直接使用到,JScrollBar的方法，因为JScrollPane都帮我们处理得好好的，但如果我们想对滚动轴做更细的设置，例如在拖曳时一次滚动多少区域等，就必须了JScrollBar所提供的功能了。JScrollBar在处理窗口的滚动并不像JScrollPane那么容易，看起来也比 JScrollPane简单得许多，因此通常在实现时我们会取一些JScrollBar所提供的功能.-scrollJpane examples of the use! ScrollBar use of the function so that it could use the rolling axis scroll window, and at first glance w ill not be directly used. JScrollBar method because JScrollPane have helped us to deal with good, but if we want to do more rolling axis small settings, such as when a tractor in the number of regional rolling, a must JScrollBar provided by the function. JScrollBar window in the rolling JScrollPane is not as easy than JScrollPane seem simple that many, it is often the realization, we will take some JScrollBar provided by the function.