selection Ordering : Sorting data is a group of data from small to large (ascending) or 7,10,13 (descending) order. Commonly used in the selection and the Bubble Act.

• 选择法排序：数据的排序就是将一批数据由小大到（升序）或由大到小（降序）进行排列。常用的有选择法、冒泡法。