Python交换变量

a, b, c = b, c, a

array = [1, 2, 5, 3, 6, 8, 4]
for i in range(len(array) - 1, 1, -1):
for j in range(0, i):
if array[j] > array[j + 1]:
array[j], array[j + 1] = array[j + 1], array[j]
print array