法_找_查_分_二_制_自

    /**
     * TODO 添加方法注释
     */
    public static void get(int[] index, int data)
    {
        if (index == null || index.length <= 0 || index.length == 1)
        {
            if (index.length == 1 && index[0] == data)
            {
                System.out.println("找到了");
            }
            return;
        }
       
        Arrays.sort(index);
        int center = index.length / 2;
        int[] a = null;
        int si = 0;
        if (index[center] > data)
        {
            a = new int[center];
        }
        else if (index[center] < data)
        {
            a = new int[index.length - (center + 1)];
            si = center + 1;
        }
        else if (index[center] == data)
        {
            System.out.println("找到了" + index[center]);
            return;
        }
        System.arraycopy(index, si, a, 0, a.length);
        get(a, data);
    }