算法1：

def bubbleSort(numbers):
    for j in range(0,len(numbers)):
        for i in range(0,len(numbers)):
            if numbers[j] < numbers[i]:
                numbers[j],numbers[i] = numbers[i],numbers[j]
             print(numbers)
def main():
    numbers = [23,12,6]
    bubbleSort(numbers)
if __name__ == '__main__':
    main()

输出：
[3, 6, 1]
[6, 3, 1]
[6, 3, 1]
[3, 6, 1]
[3, 6, 1]
[3, 6, 1]
[1, 6, 3]
[1, 3, 6]
[1, 3, 6]
需要比较9次，才能得到结果