1 # 第一部分: 2 # 创建字典 3 dict_test = {} # 这是一个空的字典 4 dict1 = dict() 5 # 添加键-值对 6 dict1[‘name_key‘] = ‘name_value‘ 7 # 访问字典 8 print(dict1[‘name_key‘]) 9 # 修改字典中的值 10 dict1[‘name_key‘] = ‘Jack‘ 11 print(dict1[‘name_key‘]) 12 # 删除键-值对 13 del dict1[‘name_key‘] 14 15 # 第二部分: 16 dict2 = { 17 ‘name‘:‘Jack‘, 18 ‘age‘:21, 19 } 20 # 遍历键-值对 21 for name,age in dict2.items(): 22 print(name,age) 23 # 遍历所有键(顺序、不顺序) 24 #不顺序 25 for key in dict2.keys(): 26 print(key) 27 #顺序 28 for key in sorted(dict2.keys()): 29 print(key) 30 # 遍历所有值 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 # 字典中储存列表 38 family = { 39 ‘father_name‘:‘Jack‘, 40 ‘son_name‘:[‘son1,son2,son3‘] 41 } 42 # 字典中储存字典 43 user_dict = { 44 ‘user_info‘:{‘name‘:‘Jack‘,‘age‘:21} 45 }