说明：  题目：对10个数进行排序 程序分析：可以利用选择法，即从后9个比较过程中，选择一个最小的与第一个元素交换，下次类推，即用第二个元素与后8个进行比较，并进行交换。
(Topic: 10 Number of sorts for the program analysis: selection method can be used, that is, from the nine comparison process, select a minimal exchange with the first element, the next and so on, that is 8 and the second element compare and exchange.)