標籤:添加 items ict fat ems dict python 訪問 values
1 # 第一部分: 2 # 建立字典 3 dict_test = {} # 這是一個空的字典 4 dict1 = dict() 5 # 添加鍵-值對 6 dict1[‘name_key‘] = ‘name_value‘ 7 # 訪問字典 8 print(dict1[‘name_key‘]) 9 # 修改字典中的值10 dict1[‘name_key‘] = ‘Jack‘11 print(dict1[‘name_key‘])12 # 刪除鍵-值對13 del dict1[‘name_key‘]14 15 # 第二部分:16 dict2 = {17 ‘name‘:‘Jack‘,18 ‘age‘:21,19 }20 # 遍曆鍵-值對21 for name,age in dict2.items():22 print(name,age)23 # 遍曆所有鍵(順序、不順序)24 #不順序25 for key in dict2.keys():26 print(key)27 #順序28 for key in sorted(dict2.keys()):29 print(key)30 # 遍曆所有值31 for value in dict2.values():32 print(value)33 34 # 第三部分:35 # 列表字典36 people = [{‘name‘:‘Jack‘},{‘name‘:‘son‘},{‘name‘:‘father‘}]37 # 字典中儲存列表38 family = {39 ‘father_name‘:‘Jack‘,40 ‘son_name‘:[‘son1,son2,son3‘]41 }42 # 字典中儲存字典43 user_dict = {44 ‘user_info‘:{‘name‘:‘Jack‘,‘age‘:21}45 }
Python基礎-字典篇