一般情况下，ListBox的滚动条是默认不显示的，有些是根据内容自动显示的，本例将为TListBox组件强制添加一个水平方向的滚动条。为了更好的演示，窗体上有一个按钮可以控制滚动条的添加，你只需点击一下按钮，即可添加滚动条。

-Under normal circumstances, ListBox scroll bar is not displayed by default, some are automatically displayed based on the content, in this case will be forced to add components TListBox a horizontal scroll bar. In order to better demonstrate, there is a button you can control the scroll bar to add, you simply click a button, you can add a scroll bar on the form.