1.python-----------range
array= [1,2,5,3,6,8,4]
for i in range(len(array)- 1,0,-1):
print(i)
for j in range(0, i):
print(j)
if array[j] > array[j + 1]:
array[j], array[j + 1]= array[j+ 1], array[j]
print(array)
其实要想省事儿，sort()函数一句就能搞定.......
