使用箭头按钮可以更改列的顺序。
We can use the arrow buttons to change the column order, too.
JSpinner组件，它让用户使用箭头按钮在列表中滚动，从一个有序的列表中进行选择。
A JSpinner component that lets the user select from an ordered list using arrow buttons to scroll through the list.
将未分配的术语分配给已创建的分类，具体方法是将光标放到第一个分类，然后使用箭头按钮来将术语分配给此分类。
Assign the unassigned terms to the categories you created by placing your cursor on the first category and using the arrow buttons to assign terms to this category.
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