标签：world inpu asd lse 分享 continue == tar strip
1 ‘‘‘ 2 程序: 三级菜单 3 4 要求: 5 6 打印省、市、县三级菜单 7 可返回上一级 8 可随时退出程序 9 ‘‘‘ 10 11 proviInfo = { 12 "山西":{"吕梁":["柳林县","中阳县","临县","古交"], 13 "大同":["小脚县","大大县","小小县"] 14 }, 15 "云南":{"大理市":["苍山","洱海","大理石"], 16 "丽江市":["九天","石盘","天问"] 17 } 18 } 19 20 while True: 21 input1 = input("请输出你要查询的省份:") 22 for i in proviInfo[input1] : 23 print(i) 24 input2 = input("返回上一级:up/退出查询:N/继续查询下一级:") 25 if input2 == "up": 26 continue 27 elif input2 =="N": 28 break 29 else: 30 for j in proviInfo[input1][input2] : 31 print(j)
1 #元组被称为只读列表 2 #只能查询，不能修改 3 #列表的切片同样适用于元组 4 a = (1,2,3,4,5,6) 5 print(a[2])#3 6 print(a[2:4])#(3, 4)
# String的内置方法
# st=‘hello kitty {name} is {age}‘
# print(st.count(‘l‘)) # 统计元素个数
# print(st.capitalize()) # 首字母大写
# print(st.center(50,‘#‘)) # 居中
# print(st.endswith(‘tty3‘)) # 判断是否以某个内容结尾
# print(st.startswith(‘he‘)) # 判断是否以某个内容开头
# print(st.expandtabs(tabsize=20))
# print(st.find(‘t‘)) # 查找到第一个元素，并将索引值返回
# print(st.format(name=‘alex‘,age=37)) # 格式化输出的另一种方式 待定：?:{}
# print(st.format_map({‘name‘:‘alex‘,‘age‘:22}))
# print(st.index(‘t‘))
# print(‘asd‘.isalnum())
# print(‘12632178‘.isdecimal())
# print(‘1269999.uuuu‘.isnumeric())
# print(‘abc‘.isidentifier())
# print(‘Abc‘.islower())
# print(‘ABC‘.isupper())
# print(‘ e‘.isspace())
# print(‘My title‘.istitle())
# print(‘My tLtle‘.lower())
# print(‘My tLtle‘.upper())
# print(‘My tLtle‘.swapcase())
# print(‘My tLtle‘.ljust(50,‘*‘))
# print(‘My tLtle‘.rjust(50,‘*‘))
# print(‘\tMy tLtle\n‘.strip())
# print(‘\tMy tLtle\n‘.lstrip())
# print(‘\tMy tLtle\n‘.rstrip())
# print(‘ok‘)
# print(‘My title title‘.replace(‘itle‘,‘lesson‘,1))
# print(‘My title title‘.rfind(‘t‘))
# print(‘My title title‘.split(‘i‘,1))
# print(‘My title title‘.title())
#摘一些重要的字符串方法
#1 print(st.count(‘l‘))
# print(st.center(50,‘#‘)) # 居中
# print(st.startswith(‘he‘)) # 判断是否以某个内容开头
# print(st.find(‘t‘))
# print(st.format(name=‘alex‘,age=37)) # 格式化输出的另一种方式 待定：?:{}
# print(‘My tLtle‘.lower())
# print(‘My tLtle‘.upper())
# print(‘\tMy tLtle\n‘.strip())
# print(‘My title title‘.replace(‘itle‘,‘lesson‘,1))
# print(‘My title title‘.split(‘i‘,1))
1 # 1 * 重复输出字符串 2 # print(‘hello‘*20) 3 4 # 2 [] ,[:] 通过索引获取字符串中字符,这里和列表的切片操作是相同的,具体内容见列表 5 # print(‘helloworld‘[2:]) 6 7 #关键字 in 8 # print(123 in [23,45,123]) 9 # print(‘e2l‘ in ‘hello‘) 10 11 # 4 % 格式字符串 12 # print(‘alex is a good teacher‘) 13 # print(‘%s is a good teacher‘%‘alex‘) 14 15 #5 16 # a=‘123‘ 17 # b=‘abc‘ 18 # d=‘44‘ 19 # # # c=a+b 20 # # # print(c) 21 # # 22 # c= ‘‘.join([a,b,d]) 23 # print(c)
作业：程序: 三级菜单
1 ‘‘‘ 2 程序: 三级菜单 3 4 要求: 5 6 打印省、市、县三级菜单 7 可返回上一级 8 可随时退出程序 9 ‘‘‘ 10 11 proviInfo = { 12 "山西":{"吕梁":["柳林县","中阳县","临县","古交"], 13 "大同":["小脚县","大大县","小小县"] 14 }, 15 "云南":{"大理市":["苍山","洱海","大理石"], 16 "丽江市":["九天","石盘","天问"] 17 } 18 } 19 20 while True: 21 input1 = input("请输出你要查询的省份:") 22 for i in proviInfo[input1] : 23 print(i) 24 input2 = input("返回上一级:up/退出查询:N/继续查询下一级:") 25 if input2 == "up": 26 continue 27 elif input2 =="N": 28 break 29 else: 30 for j in proviInfo[input1][input2] : 31 print(j)
参考老师的作业：
http://www.cnblogs.com/alex3714/articles/5717620.html
标签：world inpu asd lse 分享 continue == tar strip
原文地址：https://www.cnblogs.com/neilyoung22/p/9175537.html
