Python11月24日周考答案

# 第一题
# int  bool  float str list tuple dict set
# str
# split()
# upper()
# lower()
# swapcase()
# count()
# find()
# index()
# ''.join()
# max()
# min()
# replace()
# re
#
# list
#
#   pop()
#   append()
#   len()
#   Max()
#   Min()
#   Sort()
#   Sorted()
#   Insert()
#   Index()
#   Remove()
#   Clear()
#   Extend()
#   Count()
# Dict
# Keys()
# Values()
# Fromkeys()
# Update()
# Items()
# Del
# Pop()
#
# Set
# Add
# Pop
# remove
# #第二题
# lists = [1,4,4,5,5,6]
# print(list(set(lists)))
#
# l = []
# for i in lists:
#     if i not in l:
#         l.append(i)
# print(l)
#
# dicts = {}
# lists = list(dicts.fromkeys(lists).keys())
# print(lists)
#
# import numpy as np
# n = np.unique(lists)
# print(list(n))
#
# import itertools
# demo = itertools.groupby(lists)
# lists = []
# for a,b in demo:
#     lists.append(a)
# print(lists)

# 第三题
# def maxs(*args):
#     min=args[0]
#     max=args[0]
#     for i in args:
#         if min>i:
#             min=i
#         if max<i:
#             max=i
#     return min,max
#
# a = maxs(1,18,3,4,5)
# print(a)

# 第四题
# a = [1,2,4,7,9]
# b = [2,4,9,10,21]
# def index(a,b):
#     list1 = []
#     list2 = []
#     for i in a:
#         if i in b:
#             list1.append(i)
#         else:
#            list2.append(i)
#     for i in b:
#         if i not in a:
#             list2.append(i)
#
#     return list1,list2
#
# print(index(a,b))

# 先转成集合
# a = t | s  # t 和 s的并集
#
# b = t & s  # t 和 s的交集
#
# c = t – s  # 求差集（项在t中，但不在s中）
#
# d = t ^ s  # 对称差集（项在t或s中，但不会同时出现在二者中）
#第五题
# lists = [[1,2],[3,4],[5,6]]
# s = [j for x in lists for j in x]

# ss = [int(x) for x in str(lists).replace('[','').replace(']','').split(',')]
# print(ss)

# sss = sum(lists,[])
# print(sss)

#第六题
# a = ['aww','222',222,45645]
# import random
# random.shuffle(a)
# print(a)

# 第七题
# dict1 = {}
# dicts = {"A":1,"B":2}
# for a,b in dicts.items():
#     dict1[b] = a
# print(dict1)

# dicts.values()
# for i in dicts.keys():
#     dict1[dicts[i]] = i
# print(dict1)

# print({v:k for k,v in dicts.items()})
#第八题
# a = 123
# b = 567

# c = a
# a  = b
# b = c
# print(a,b)


# a,b = b,a
# print(a,b)
# 第九题
# enumerate() 函数用于将一个可遍历的数据对象(如列表、元组或字符串)组合为一个索引序列，同时列出数据和数据下标，一般用在 for 循环当中。

# 第十题
# def index(lists):
#     for j in range(len(lists)-1):
#         for i in range(len(lists)-1-j):
#             if lists[i]>lists[i+1]:
#                 lists[i],lists[i+1] = lists[i+1],lists[i]
#     return lists
# lists = [1, 14, 33, 4, 67, 12, 465, 5, 8]
# print(index(lists))
#第十题
# strs='++++----++--'
# s = strs.count('+')*'+'+strs.count('-')*'-'
# print(s)

# strs = '++++----++--'
# s_list = list(strs)
# n = 0
# for i in range(len(s_list)):
#     if s_list[n] == '+':
#         p = s_list.pop(n)
#         s_list.append(p)
#     else:
#         n = n + 1
# print(s_list)


# def jj(a):
#     left = []
#     right = []
#     for i in a:
#         if i == "+":
#             left.append(i)
#         else:
#             right.append(i)
#     left.extend(right)
#     return left
# print(jj(["+","-","+","-","+","-"]))
# www.baidu.com中的地址（2）a="张明 98 分"，用 re.sub，将 98 替换为 100
# import re
# a = 'www.baidu.com'
# b = "张明 98 分"
# demo = re.compile('www.(w+).com')
# lists = demo.findall(a)
# print(lists)
# last = re.sub('d{2}','100',b)
# print(last)

#十四题
# a = 'asdfasfsad'
# b = 'sfsdfsdsd'
# demo = ''.join(sorted(list(a+b)))
# print(demo)