list，tuple,set,dict基礎

list

  1 # @Auther   : chen
  2 # @Time     : 2018/4/26 19:55
  3 # @File     : list_ex.py
  4 # @SoftWare : PyCharm
  5 
  6 # list1 = [1,2,3,4,5,6,7,8,9,0]
  7 # random.shuffle(list1)
  8 # print(list1)
  9 # for i in list1:
 10 #     print(i)
 11 
 12 name_list = ['alex','bill','chris','eve','frank','ray','suker']
 13 name_iter=iter(name_list)
 14 print(name_iter.__next__())
 15 # print(name_list.index('chris'))
 16 # name_list.insert(4,'jack')#指定位置插入
 17 # print(name_list)
 18 # name_list.reverse()#list 反轉
 19 # print(name_list)
 20 # name_list.remove('eve')#刪除指定的值
 21 # print(name_list)
 22 # name_list.pop()#刪除一個列表尾部數據
 23 # name_list.sort()#按順序排列原list
 24 # chg_list = sorted(name_list)#排序
 25 # name_list.append('alex')#尾部追加
 26 # print(name_list)
 27 #刪除列表中指定的值
 28 # for val in range(name_list.count('alex')):
 29 #     name_list.remove('alex')
 30 # print(name_list)
 31 #切片 顧頭不顧尾
 32 # list_src = [1,2,3,4,5,6,7,8,9,0]
 33 # print(list_src[0:3])
 34 # print(list_src[:3])
 35 # print(list_src[-3:-1])
 36 # print(list_src[-3:])
 37 # print(list_src[0:9:3])
 38 #列表拼接
 39 # name_list = name_list + list_src
 40 # print(name_list)
 41 # list_src.extend(name_list)
 42 # print(list_src)
 43 # list1 = [0,1,2,3,4,5,6,7,8,9,0]
 44 # list2 = 'ray chen'
 45 # list1.extend(list2)
 46 # print(list1)
 47 # list3 = []
 48 # list3.extend(list2)
 49 # print(list3)
 50 #元組和列表互轉
 51 list1 = ['alex','suker','flex']
 52 print(list1.count('alex'))
 53 tuple1 = tuple(list1)
 54 print(list1,tuple1)
 55 list2 = list(tuple1)
 56 print(list2,tuple1)
 57 
 58 '''
 59 import copy
 60 list1 = [1,2,3,4,5]
 61 list2 = ['a','b','c','d']
 62 for ele in zip(list1,list2):
 63     print(ele)
 64 p1 = ['name',['age',170],'male']
 65 p2 = list(p1)
 66 p2[0] = 'name2'
 67 p2[1][1] = 175
 68 print('--result2--')
 69 print(p1,p2)
 70 p3 = copy.copy(p1)
 71 p3[0] = 'name3'
 72 p3[1][1] = 180
 73 print('--result3--')
 74 print(p1,p3)
 75 p4 = p1[:]
 76 p4[0] = 'name4'
 77 p4[1][1] = 185
 78 print('--result4--')
 79 print(p1,p3)
 80 p5 = p1
 81 p5[0] = 'name5'
 82 p5[1][1] = 190
 83 print('--result5--')
 84 print(p1,p5)
 85 p6 = copy.deepcopy(p1)
 86 p6[0] = 'name6'
 87 p6[1][1] = 195
 88 print('--result6--')
 89 print(p1,p6)
 90 '''
 91 '''
 92 #淺COPY
 93 p1 = ['name',['age',170],'male']
 94 p2 = list(p1)
 95 p2 = copy.copy(p1)
 96 p2 = p1[:]
 97 p2 = p1
 98 
 99 '''
100 '''
101 L1 = ['A','B','C',['D','E','F'],'G']
102 L2 = L1.copy()
103 L2[3][2] = 'F1'
104 print(L1,L2)
105 '''
106 '''
107 L1 = [1,2,3]
108 L2 = L1.copy()
109 L2[1] = 0
110 print(L1,L2)
111 '''
112 '''
113 import copy
114 L1 = [1,2,3]
115 L2 = copy.deepcopy(L1)#copy 一份獨立的列表
116 L2[1] = 0
117 print(L1,L2)
118 '''
119 '''
120 L1 = [1,2,3]
121 L2 = L1
122 L2[1] = 0
123 print(L1,L2)
124 '''
125 '''
126 L1 = ['A','B','C',['D','E','F'],'G']
127 L2 = L1.copy()
128 print(L1,L2)
129 L1[2] = 'C1'
130 print(L1,L2)
131 L1[3][2] = 'F1'
132 print(L1,L2)
133 L2[2] = 'B1'
134 print(L1,L2)
135 L2[3][1] = 'D1'
136 print(L1,L2)
137 '''
138 '''
139 L = ['a','b','c','d','e','f']
140 # insert add
141 L1 = L.insert(1,'0')
142 L2 = L.append('g')
143 #modify
144 L3 = L[0] = '1'
145 #delete
146 L4 = L.remove('g')
147 L5 = L.pop()
148 del L[0]
149 #切片
150 print(L)
151 print(L[:5]) #取前5個 == print(L[0:5])
152 print(L[1:5]) #從下標1取到下標4（顧頭不顧尾）
153 print(L[4]) #取第4個元素
154 print(L[-1])#取最後一個元素
155 print(L[-3:])#取最後3個元素
156 print(L[-3:-1])# 取倒數第二和第三個元素
157 print(L.count('e'))
158 L.reverse() #反轉
159 L.sort()#排序
160 sorted（L)#排序
161 L.index('e')#打印元素索引
162 L.extend(L5) #拼接2個列表
163 print(L)
164 L6 = L.copy()#複製列表
165 L.clear()#清空
166 del L #刪除列表
167 '''

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tuple

 1 #tuple比list好的地方
 2 #1.性能優化（immutable會做爲常量在編譯時肯定）（immutable--不可變）
 3 #2.線程安全
 4 #3.能夠做爲dict的key
 5 #4.可拆包
 6 #tuple 拆包
 7 user_tuple1 = ('ray',27,170)
 8 name,age,height = user_tuple1
 9 print(name,age,height)
10 user_tuple2 = ('ray',27,170,'shiyan','college')
11 name,*other = user_tuple2
12 print(name,other)
13 #tuple不可變性不是絕對的
14 user_tuple3 = ('ray',[27,'shiyan'])
15 print(user_tuple3)
16 user_tuple3[1].append('college')
17 print(user_tuple3)
18 user_dict = {}
19 user_dict[user_tuple1] = 'ray'

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set

 1 #list 轉 set
 2 list_1 = [1,3,5,7,9,11,13]
 3 list_1 = set(list_1)
 4 list_2 = {3,7,9,11,2,4,6}
 5 #交集
 6 print(list_1.intersection(list_2))
 7 print(list_1 & list_2)
 8 #並集
 9 print(list_1.union(list_2))
10 print(list_1 | list_2)
11 #差集
12 print(list_1.difference(list_2))
13 print(list_1 - list_2)
14 #子集/父集
15 print(list_1.issubset(list_2))
16 print(list_1.issuperset(list_2))
17 #對稱差集(兩個集合中互相不存在的）
18 print(list_1.symmetric_difference(list_2))
19 print(list_1 ^ list_2)
20 #添加

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string

str1 = 'good good study,day day up'
print(str1.capitalize())  # 首字母大寫
print(str1.center(50,'-'))
list1 = ['1','2','3']
print('+'.join(list1))　

dict