选择排序

 1  void selectionAscSort(int arr[], int length)
 2  {
 3     for(int i = 0; i < length -1; i++)
 4     {
 5         for(int j = i + 1; j < length; j++)
 6         {
 7             if(arr[i] > arr[j])
 8             {
 9                 arr[i] = arr[i] ^ arr[j];
10                 arr[j] = arr[i] ^ arr[j];
11                 arr[i] = arr[i] ^ arr[j];
12             }
13         }
14     }
15 }