冒泡排序

        public class BubbleSortLib
        {
            public int[] Sort(int[] arr)
            {
                for (int outer = arr.Length - 1; outer > 0; outer--)
                {
                    for (int inner = 0; inner < outer; inner++)
                    {
                        if (arr[inner] > arr[inner + 1])
                        {
                            int temp = arr[inner];
                            arr[inner] = arr[inner + 1];
                            arr[inner + 1] = temp;
                        }
                    }
                }
                return arr;
            }
        }