QuickSort

代码说明：

  快速排序，用数组的存储结构，实现数的排序。共有八组随机数据，还能够计算出每组数据的处理时间，最终得到平均时间。(Quicksort array storage structure, to achieve the sort of number. A total of eight sets of random data, but also be able to calculate the processing time of each data, and eventually obtain the average time.)