list 冒泡排序 --for in --变量交换

#   查找  排序

k1 = [11,22,1, 2, 3, 4, 5, 6, 7, 8, 9, ]
k1.sorted()      # 排序改变
k1[1] , k1[2] = k1[2] ,k1[1]
print(k1)  
#    [11, 1, 22, 2, 3, 4, 5, 6, 7, 8, 9]
#运用变量交换 ---- k1[i] , k1[i+1] = k1[i+1] ,k1[i]    相邻互换位置

#   for  in 循环比较
k1 = [11,22,1, 2, 3, 4, 5, 6, 9, 8, 9, ]
for j in range(len(k1)-1):
   for i in range(len(k1)-1-j):
         if k1[i] > k1[i+1]:
             k1[i], k1[i + 1] = k1[i + 1], k1[i]
print(k1)
#    [1, 2, 3, 4, 5, 6, 8, 9, 9, 11, 22]

k1 = [11,22,1, 2, 3, 4, 5, 6, 7, 8, 9, ]
for i in range(len(k1)-1):
     for i in range(len(k1) - 1):
         if k1[i] > k1[i+1]:
             k1[i] , k1[i+1] = k1[i+1] ,k1[i]
print(k1)      
#  [1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 22]

for i in range(len(k1)-1):     #  for   in  陷入循环 列表
         if k1[i] > k1[i+1]:
             k1[i], k1[i + 1] = k1[i + 1], k1[i]
print(k1)
#  [11, 1, 2, 3, 4, 5, 6, 7, 8, 9, 22]