交换排序--快速排序
private int partion(int[] a, int low ,int height){int provkey=a[low];while(low<height){while(low<height && provkey<=a[height])height--;a[low]=a[height];while(low<height && provkey>a[low])low++;a[height]=a[low];}a[low]=provkey;return low;}public void sort1(int[] a, int low, int height){int loc;if(low<height){loc=partion(a,low,height);sort(a,low,loc);sort(a,loc+1,height);}}