Python 排序算法：令你茅塞顿开，却又匪夷所思！

1 算术运算：加减乘除等运算

2 逻辑运算：或、且、非等运算

3 关系运算：大于、小于、等于、不等于等运算

4 数据传输：输入、输出、赋值等运算 [1]

data = [5, 4, 8, 3, 2]def bubble(data):

for i in range(len(data)-1): # 排序次数

for s in range(len(data)-i-1): # s为列表下标

if data[s] > data[s+1]:

data[s], data[s+1] = data[s+1], data[s]

return dataprint(bubble(data))

[2, 3, 4, 5, 8]

data = [3, 4, 1, 6, 2, 9, 7, 0, 8, 5]

def selections(nums): for i in range(len(nums)):

min_index = min(nums) # 最小值

for j in range(len(nums) - i): if nums[min_index]

min_index = j

nums[min_index], nums[len(nums) - i - 1] = nums[len(nums) - i - 1], nums[min_index] return nums

print(selections(data))

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

data = [3, 4, 1, 6, 2, 9, 7, 0, 8, 5]res = []for i in range(0, len(data)):

aps = min(data)

data.remove(aps)

res.append(aps)print(res)

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

[9, 8, 7, 6, 5, 4, 3, 2, 1, 0]

data = [3, 4, 1, 6, 2, 9, 7, 0, 8, 5]res = []for i in range(0, len(data)):

aps = max(data)

result = data.pop(data.index(aps)) print(result) res.append(aps)print(res)

9876543210[9, 8, 7, 6, 5, 4, 3, 2, 1, 0]

# 崔庆才丨静觅、韦世东丨奎因 邀请你关注微信公众号【进击的Coder】from datetime import datetimedata = [i for i in range(500000)]start_time = datetime.now()for i in range(len(data)):

data.pop(data.index(i))print(data)print(datetime.now() - start_time)

[]0:00:40.151812

from datetime import datetime

data = [i for i in range(500000)]

start_time = datetime.now()for i in range(len(data)):

data.pop()print(data)print(datetime.now() - start_time)

[]0:00:00.071441

from datetime import datetime

data = [i for i in range(30000)]

def selections(nums): for i in range(len(nums)):

min_index = min(nums) # 最小值

for j in range(len(nums) - i): if nums[min_index]

min_index = j

nums[min_index], nums[len(nums) - i - 1] = nums[len(nums) - i - 1], nums[min_index] return nums

start_time = datetime.now()

selections(data)

print(datetime.now() - start_time)

from datetime import datetimedata = [i for i in range(30000)]start_time = datetime.now()res = []for i in range(0, len(data)):

aps = max(data)

# del data[data.index(aps)]

data.pop(data.index(aps))

res.append(aps)print(datetime.now() - start_time)

from datetime import datetime

data = [i for i in range(30000)]

data.insert(60, 5)# 崔庆才丨静觅、韦世东丨奎因 邀请你关注微信公众号【进击的Coder】def direct_insert(nums):

for i in range(1, len(nums)):

temp = nums[i] # temp变量指向尚未排好序元素（从第二个开始）

j = i-1 # j指向前一个元素的下标

while j >= 0 and temp

nums[j+1] = nums[j]

j = j-1

nums[j+1] = temp # temp所指向元素的最终位置

return nums

start_time = datetime.now()

res = direct_insert(data)

print(datetime.now() - start_time)

print(len(res), res[:10])

0:00:00.00739830001 [0, 1, 2, 3, 4, 5, 5, 6, 7, 8]

from datetime import datetime

data = [i for i in range(30000)]

data.insert(60, 5)

def selections(nums): for i in range(len(nums)):

min_index = min(nums) # 最小值 for j in range(len(nums) - i): if nums[min_index]

min_index = j

nums[min_index], nums[len(nums) - i - 1] = nums[len(nums) - i - 1], nums[min_index] return nums

start_time = datetime.now()res = selections(data)print(datetime.now() - start_time)print(len(res), res[:10])

0:00:47.89523730001 [0, 1, 2, 3, 4, 5, 5, 6, 7, 8]

0:00:14.15099230001 [29999, 29998, 29997, 29996, 29995, 29994, 29993, 29992, 29991, 29990]

for i in range(len(data)-1): # 排序次数

for s in range(len(data)-i-1): # s为列表下标

if data[s] > data[s+1]:

data[s], data[s+1] = data[s+1], data[s]

return datastart_time = datetime.now()res = bubble(data)print(datetime.now() - start_time)print(len(res), res[:10])

0:00:41.39230330001 [0, 1, 2, 3, 4, 5, 5, 6, 7, 8]

• 发表于:
• 原文链接https://kuaibao.qq.com/s/20181220A1AGDI00?refer=cp_1026
• 腾讯「云+社区」是腾讯内容开放平台帐号（企鹅号）传播渠道之一，根据《腾讯内容开放平台服务协议》转载发布内容。

2019-10-20

2019-10-20

2019-10-20

2019-10-20

2019-10-20

2019-10-20

2018-03-12

2019-10-20

2019-10-20

2019-10-20

2019-10-20

2019-10-20