选择排序也是一种简单直观的排序算法。它的工作原理很容易理解：首先在未排序序列中找到最小（大）元素，存放到排序序列的起始位置；然后，再从剩余未排序元素中继续寻找最小（大）元素，放到已排序序列的末尾。以此类推，直到所有元素均排序完毕。-Selection sort is a simple and intuitive sort algorithm. Its working principle is easy to understand: first in the unsorted sequence to find the minimum (large) elements, stored in the collating sequence starting position　then　the remaining unsorted elements continue to search for the least and greatest element into a sorted sequence at the end of. And so on, until all the elements are sorted.