python冒泡算法

li=[1,34,67,98,5,68,45,12,34]

for j in range(len(li)):
     for i in range(len(li)-1):
         if li[i] > li[i+1]:
             li[i],li[i+1]=li[i+1],li[i]
print(li)

打印：
[1, 5, 12, 34, 34, 45, 67, 68, 98]