算法学习笔记2---冒泡排序

 1 import random
 2 def bubble_sort_1(li):
 3     for i in range(len(li)-1):
 4         exchange = False
 5         for j in range(len(li)-i-1):
 6             if li[j] > li[j+1]:
 7                 li[j],li[j+1] = li[j+1],li[j]
 8                 exchange = True
 9         if not exchange:
10             return
11 
12 li=list(range(1000))
13 random.shuffle(li) #洗牌操作
14 bubble_sort_1(li)
15 print(li)