1+ # -*- coding: utf-8 -*-
2+ """
3+ Created on Sun Feb 25 13:34:54 2018
4+
5+ @author: Administrator
6+ """
7+
8+ # 容器的操作
9+ tuple1 = (1 , 2 , 3 )
10+ # 访问
11+ print (tuple1 [:])
12+ print (tuple1 [0 ])
13+ del (tuple1 [0 ]) # tuple中元素不可改变
14+ del (tuple1 )
15+
16+ str1 = "test"
17+ print (str1 [:])
18+ print (str1 [0 ])
19+ del (str1 [0 ])
20+
21+ list1 = [1 , 2 , 3 ]
22+ print (list1 [:])
23+ print (list1 [0 ])
24+ del (list1 [0 ])
25+ # 添加元素
26+ # 元组不可以被修改，包括添加元素，任何方法都不可以
27+ #tuple1[3] = 4 # 'tuple' object does not support item assignment
28+ #list1.append(5)
29+
30+ #修改元素
31+ #tuple1[0:1] = 0 # 元组切片不可以
32+ #tuple1[0] = 0 # 元组索引不可以
33+
34+ #list1[0:2] = [0] # 列表切片可以
35+ #list1[0] = 0 # 列表索引可以
36+
37+ #str1[0:2] = '0' #不可以
38+ #str1[0] = '0' #不可以
39+
40+ # 小结：
41+ # 1.str、元组、列表可以进行切片操作，可以索引访问
42+ # 2.元组不可以被修改，包括添加元素、修改原有元素；任何方法都不可以（包括切面、索引）
43+ # 3.str不可以被修改，索引、切片都不可以
44+
45+ print ("ddd22" .isalnum ()) # True
46+ print ("mm" .isalpha ()) # True
47+ print ("mm334" .isalpha ()) # False
48+ print ([1 ,2 ,3 ].count (4 )) # 0 ???
49+
50+ dict1 = {"name" :"geyang" , "age" :24 , "height" :173 }
51+ #dict1["weight"] = 70 # 增
52+ #del(dict1["name"]) # 删
53+ #dict1["weight"] = 80 # 改
54+ #print(dict1["weight"]) # 查
55+
56+ keys = dict1 .keys ()
57+ print (keys )
58+ values = dict1 .values ()
59+ print (values )
60+ print (dict1 .get ("name" ))
61+ print (dict1 .get ("name1" )) # get()方法，如果查找键不存在，返回None
62+ items = dict1 .items ()
63+ print (items )
64+ #dict_items([('name', 'geyang'), ('age', 24), ('height', 173)])
65+
66+ a = 0
67+ while a < 2 :
68+ print ("a = %d" % a )
69+ a += 1
70+ else :
71+ print ("test" )
72+
73+ # 小结：
74+ # for 和 while 可以搭配else语句
75+
76+ list2 = [5 , 2 , 8 ]
77+ result = list2 .sort () # sort()方法没有返回值,直接对list进行排序
78+ print (list2 )
79+ print (list2 [- 1 ])
80+
81+ #考试题1 小明和女朋友买士力架吃，每天小明吃1个，女朋友吃半个，
82+ # 直到第6天时，剩下1个。问小明买了几个?
83+ # 分析：count(6) = 1 count(5) = count(6) + 1.5 求count(1)
84+ # count(n) = count(n + 1) + 1.5
85+ def count (day ):
86+ if day == 6 :
87+ return 1
88+ else :
89+ return count (day + 1 ) + 1.5
90+
91+
92+ print (count (1 ))
93+
94+ # 考试题2：一次性输入任意不少于5个数字（数字之间以逗号为界）保存在list中，
95+ # 对输入的数字进行排序，不准使用内置函数，封装成函数
96+ def sort_number ():
97+ input_str = input ()
98+ number_list = input_str .split ("," )
99+ # print(number_list)
100+ number_list = [ int (index ) for index in number_list ]
101+ print ("before sort:" , number_list )
102+ # 冒泡排序
103+ bubble_sort (number_list )
104+ print ("after sort:" , number_list )
105+
106+ def bubble_sort (number_list ):
107+ for j in range (1 , len (number_list )):
108+ for i in range (len (number_list ) - j ):
109+ if number_list [i ] > number_list [i + 1 ]:
110+ # 交换
111+ temp = number_list [i + 1 ]
112+ number_list [i + 1 ] = number_list [i ]
113+ number_list [i ] = temp
114+
115+ # 测试
116+ #number_list = [5, 3, 8, 1]
117+ #bubble_sort(number_list)
118+
119+ sort_number ()
120+
121+ # 考试3：切割列表元素，如果相邻元素相同，则切割存放在一起，不同则单独切割
122+ # 封装为函数
123+ def slice_list ():
124+ temp_list = []
125+ result_list = []
126+ index = 0
127+ input_list = [1 , 1 , 0 , 2 , 2 , 2 , 4 , 3 , 3 , 4 , 2 , 0 , 0 ]
128+
129+ while True :
130+ if index == len (input_list ):
131+ break
132+ while input_list [index ] == input_list [index + 1 ]:
133+ temp_list .append (input_list [index ])
134+ index += 1
135+ temp_list .append (index )
136+ result_list .append (temp_list )
137+ index += 1
138+
139+
140+ slice_list ()
141+
142+ # 考试题4：写一个程序，可以任意输入文件名，打开该文件，如果文件不存在则创建该文件。
143+ # 然后输入内容，可重复输入追加到文件中。
144+
145+ # 考试题5：计算年龄
146+ #f(1) = 10 f(2) = f(1) + 2 f(3) = f(2) + 2
147+ def count_age (number ):
148+ if number == 1 :
149+ return 10
150+ else :
151+ return count_age (number - 1 ) + 2
152+
153+ print (count_age (5 ))
154+
155+ # 考试题6：time操作
156+ # (1)将字符串的时间"2017-12-31 23:24:00" 转为时间戳和时间元组
157+ # (2)字符串格式更改
158+ # (3)获取两天前的时间
159+ # (4)通过time输出时间
160+ import time
161+
162+ time_format = "2017-12-31 23:24:00"
163+ # (1)转为时间戳
164+ timestamp = time .mktime (time .strptime (time_format , "%Y-%m-%d %H:%M:%S" ))
165+ print (timestamp )
166+ # 转为时间元组
167+ localtime = time .localtime (timestamp )
168+ print (localtime )
169+
170+ # (2)格式修改
171+ time_format1 = time_format .replace ("12" , "10" )
172+ time_format1 = time_format1 .replace ("31" , "10" )
173+ print (time_format1 )
174+
175+
176+ timestamp = time .mktime (time .strptime (time_format1 , "%Y-%m-%d %H:%M:%S" ))
177+ localtime = time .localtime (timestamp )
178+ time1 = time .strftime ("%Y/%m/%d %H-%M-%S" , localtime )
179+ print (time1 )
180+
181+ # (3)获取前两天的时间
182+ # 使用datetime 模块
183+ import datetime
184+ now_time = datetime .datetime .now ()
185+ print (now_time )
186+
187+ yesterday = now_time + datetime .timedelta (days = - 2 )
188+ print (yesterday )
189+
190+ formated_yesterday = yesterday .strftime ("%Y-%m-%d %H:%M:%S" )
191+ print (formated_yesterday )
192+
193+ # (4)通过time输出时间
194+ time_format_4 = "2018-01-01 08:08:08"
195+ timestamp4 = time .mktime (time .strptime (time_format_4 , "%Y-%m-%d %H:%M:%S" ))
196+ localtime4 = time .localtime (timestamp4 )
197+ print (localtime4 )
198+ time4 = time .strftime ("今天是%Y年%m月%d日 %H点%M分%S秒" , localtime4 )
199+ print (time4 )
200+
201+ #考试题7 定义一个班级类
202+ class Class (object ):
203+
204+ __person_number = 0
205+
206+ def __init__ (self , person_number ):
207+ Class .__person_number = person_number
208+
209+ def increase_person_number (self ):
210+ pass
211+
212+ def get_peson_number (self ):
213+ return Class .__person_number
214+
215+ class Student (Class ):
216+
217+ def __init__ (self , name , age , score ):
218+ self .name = name
219+ self .age = age
220+ self .score = score
221+
222+ def get_name (self ):
223+ return self .name
224+
225+ def get_age (self ):
226+ return self .age
227+
228+ def get_score (self , class_name ):
229+ if class_name in self .score :
230+ return "%d:%d" % (class_name , self .score [class_name ])
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