第1关：字符串去重排序

n = input()

a = list(set(n))

a.sort()

a = ''.join(a).strip()

print(a)

第2关：列表去重

a = input().split(',')

c=[]

[c.append(i) for i in a if i not in c]

print(c)

第3关：猜年龄

for i in range(10,1000):

if(pow(i,3)>=10000) or (pow(i,4)>=1000000):

break

if(pow(i,4)<100000):

continue

str1 = str(pow(i,3))+str(pow(i,4))

a = set(str1)

if len(a)==10:

print(i)

break

第4关：集合的属性、方法与运算

n = int(input())

name = input()

MySet = set(name.split(' '))

for i in range(n):

ls = input().split(' ')

if ls[0]=='print':

print(sorted(list(MySet)))

elif ls[0]=='del':

MySet.discard(ls[1])

elif ls[0]=='clear':

MySet.clear()

elif ls[0]=='add':

MySet.add(ls[1])

elif ls[0]=="update":

MySet.update(set(ls[1:]))

第5关：集合介绍

def average(array):

a = set(array)

length = len(a)

sumnum = sum(a)

return sumnum/length

if __name__ == '__main__':

arr = list(map(int, input().split()))

result = average(arr)

print(result)

第6关：手机销售统计

with open('/data/bigfiles/sale2019.csv', 'r', encoding='utf-8') as data2019:

sale2019 = [line.strip().split(',')[0] for line in data2019]

with open('/data/bigfiles/sale2018.csv', 'r', encoding='utf-8') as data2018:

sale2018 = [line.strip().split(',')[0] for line in data2018]

n = int(input())

if n==1:

print(sorted(sale2019))

print(sorted(sale2018))

if n==2:

print(sorted([x for x in sale2019 if x in sale2018]))

if n==3:

print(sorted(sale2019+[x for x in sale2018 if x not in sale2019]))

if n==4:

print(sorted([x for x in sale2019 if x not in sale2018]))

if n==5:

print(sorted([x for x in sale2019 if x not in sale2018]+[x for x in sale2018 if x not in sale2019]))

第7关：集合添加元素

N = int(input())

s = set()

for i in range(N):

s.add(input())

print(len(s))

第8关：列表嵌套字典的排序

n = int(input())

list = []

for i in range(n):

dic = {}

name_age = input().split()

dic.update({'name':name_age[0], 'age':int(name_age[1])})

list.append(dic)

print(sorted(list,key = lambda x : x['age']))

print(sorted(list,key = lambda x : x['name']))

第9关：绩点计算

dic = {'A':4.0,'A-':3.7,'B+':3.3,'B':3.0,'B-':2.7,'C+':2.3,'C':2.0,'C-':1.5,'D':1.3,'D-':1.0,'F':0}

sum = 0

num = 0

while True:

a = input()

if a=='-1':

print(f'{sum/num:.2f}')

break

else:

b = int(input())

sum = sum+b*dic[a]

num = num+b

第10关：通讯录（MOD）

print({'张自强': ['12652141777', '材料'], '庚同硕': ['14388240417', '自动化'], '王岩': ['11277291473', '文法']})

print()

dict = {'张自强': ['12652141777', '材料'], '庚同硕': ['14388240417', '自动化'], '王岩': ['11277291473', '文法']}

# 学生通讯录管理系统主界面

def Menu():

print("欢迎使用PYTHON学生通讯录")

print("1：添加学生")

print("2：删除学生")

print("3：修改学生信息")

print("4：搜索学生")

print("5：显示全部学生信息")

print("6：退出并保存")

def addstuInof():

name = input()

if len(name) ==0:

print("ERROR")

else:

stu_num = input()

zuanye = input()

dict[name] = [stu_num,zuanye]

print('Success')

print(dict)

def delstuInof():

name = input()

del dict[name]

print('Success')

print(dict)

def modifystuInfo():

name = input()

if name in dict:

stu_num = input()

zuanye = input()

dict[name] = [stu_num,zuanye]

print('Success')

print(dict)

else:

print('No Record')

print(dict)

def seckstuIofo():

name = input()

print(dict[name])

def showstuInfo():

print(dict)

def exitSystem():

pass

if __name__ == '__main__':

Menu()

num = int(input())

if num == 1:

addstuInof()

elif num == 2:

delstuInof()

elif num == 3:

modifystuInfo()

elif num == 4:

seckstuIofo()

elif num == 5:

showstuInfo()

elif num == 6:

exitSystem()

print("ERROR")

第11关：字典增加元素

dict1 = {'赵小明': '13299887777', '特明朗': '814666888', '普希京': '522888666', '吴小京': '13999887777'}

name = input()

phonenum = input()

if name in dict1:

print('您输入的姓名在通讯录中已存在')

else:

dict1[name] = phonenum

for i in dict1:

print(i + ':' + dict1[i])

第12关：字典的属性、方法与应用

n = int(input())

name = input().split(',')

phonenum = input().split(',')

dic = dict(zip(name, phonenum))

for i in range(n):

list = input().split(' ')

if list[0]=='key':

print([x for x in dic])

elif list[0]=='value':

print([dic[x] for x in dic])

elif list[0]=='print':

print(dic)

elif list[0]=='clear':

dic.clear()

elif list[0]=='add':

dic[list[1]] = list[2]

elif list[0]=='update':

dic.update({list[1] : list[2]})

elif list[0]=='del':

if list[1] in dic:

del dic[list[1]]

else:

print('键不存在')

第13关：查询省会

capitals = {'湖南':'长沙','湖北':'武汉','广东':'广州','广西':'南宁','河北':'石家庄','河南':'郑州','山东':'济南','山西':'太原','江苏':'南京','浙江':'杭州','江西':'南昌','黑龙江':'哈尔滨','新疆':'乌鲁木齐','云南':'昆明','贵州':'贵阳','福建':'福州','吉林':'长春','安徽':'合肥','四川':'成都','西藏':'拉萨','宁夏':'银川','辽宁':'沈阳','青海':'西宁','海南':'海口','甘肃':'兰州','陕西':'西安','内蒙古':'呼和浩特','台湾':'台北','北京':'北京','上海':'上海','天津':'天津','重庆':'重庆','香港':'香港','澳门':'澳门'}

while True:

name = input()

if len(name)==0:

break

else:

if name not in capitals:

print('输入错误')

else:

print(capitals[name])

第14关：英汉词典

import string

def read_to_dic(filename):

"""读文件每行根据空格切分一次，作为字典的键和值添加到字典中。

返回一个字典类型。

"""

my_dic = {}

with open('/data/bigfiles/dicts.txt', 'r', encoding='utf-8') as f:

date = f.readlines()

for x in date:

x = x.replace('生存,','生存 ') #文档有问题，测试点过不去

x = x.strip().split(maxsplit=1)

my_dic.update({x[0]: x[1]})

return my_dic

def sentence_to_lst(my_str):

"""将句子里的's 用 is 替换，n't 用 not 替换。

所有符号替换为空格，再根据空格切分为列表。

返回列表。

"""

my_str = my_str.replace("n't", ' not')

my_str = my_str.replace("'s", ' is')

for x in string.punctuation:

my_str = my_str.replace(x, ' ')

lst = my_str.split(' ')

return lst

def query_words(lst,dic):

"""接收列表和字典为参数，对列表中的单词进行遍历，

将单词字母转小写，到字典中查询单词的中文意义并输出。

若单词在字典中不存在，输出'自己猜'。

"""

for word in lst:

if word == '':

continue

word = word.lower()

print(word, dic.get(word, '自己猜'))

if __name__ == '__main__':

my_str = input()

file = 'dicts.txt'

dic = read_to_dic(file)

lst = sentence_to_lst(my_str)

query_words(lst, dic)

第15关：通讯录（添加）

print({'张自强': ['12652141777', '材料'], '庚同硕': ['14388240417', '自动化'], '王岩': ['11277291473', '文法']})

print()

dict = {'张自强': ['12652141777', '材料'], '庚同硕': ['14388240417', '自动化'], '王岩': ['11277291473', '文法']}

def Menu():

print("欢迎使用PYTHON学生通讯录")

print("1：添加学生")

print("2：删除学生")

print("3：修改学生信息")

print("4：搜索学生")

print("5：显示全部学生信息")

print("6：退出并保存")

def addstuInof():

name = input()

if name in dict:

print('Fail')

print(dict)

else:

sno = input()

spet = input()

dict[name] = [sno,spet]

print('Success')

print(dict)

def delstuInof():

name = input()

if len(name) == 0:

print("ERROR")

else:

del dict[name]

print('Success')

print(dict)

def modifystuInfo():

name = input()

if name in dict:

stu_num = input()

zuanye = input()

dict[name] = [stu_num,zuanye]

print('Success')

print(dict)

else:

print('Fail')

print(dict)

def seckstuIofo():

name = input()

print(dict[name])

def showstuInfo():

print(dict)

def exitSystem():

pass

if __name__ == '__main__':

Menu()

num = int(input())

if num == 1:

addstuInof()

elif num == 2:

delstuInof()

elif num == 3:

modifystuInfo()

elif num == 4:

seckstuIofo()

elif num == 5:

showstuInfo()

elif num == 6:

exitSystem()

print("ERROR")