本期给大家带来python字典11个方法的全面解析，希望对你有所帮助。
dic = {key1 : value1, key2 : value2 }字典也被称作关联数组或哈希表，下面是几种常见的字典创建方式：
# 方法1
dic1 = { 'Author' : 'Python当打之年' , 'age' : 99 , 'sex' : '男' }
# 方法2
lst = [('Author', 'Python当打之年'), ('age', 99), ('sex', '男')]
dic2 = dict(lst)
# 方法3
dic3 = dict( Author = 'Python当打之年', age = 99, sex = '男')
# 方法4
list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', 99, '男']
dic4 = dict(zip(list1, list2))print('methods = ',methods)
methods = ['__class__', '__contains__', '__delattr__', '__delitem__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__iter__', '__le__', '__len__', '__lt__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__reversed__', '__setattr__', '__setitem__', '__sizeof__', '__str__', '__subclasshook__', 'clear', 'copy', 'fromkeys', 'get', 'items', 'keys', 'pop', 'popitem', 'setdefault', 'update', 'values']['clear', 'copy', 'fromkeys', 'get', 'items', 'keys', 'pop', 'popitem', 'setdefault', 'update', 'values']
list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', 99, '男']
dic1 = dict(zip(list1, list2))
# dic1 = {'Author': 'Python当打之年', 'age': 99, 'sex': '男'}
dic1.clear()
# dic1 = {}list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', 99, '男']
dic1 = dict(zip(list1, list2))
dic2 = dic1 # 浅拷贝: 引用对象
dic3 = dic1.copy() # 浅拷贝：深拷贝父对象（一级目录），子对象（二级目录）不拷贝，还是引用
dic1['age'] = 18
# dic1 = {'Author': 'Python当打之年', 'age': 18, 'sex': '男'}
# dic2 = {'Author': 'Python当打之年', 'age': 18, 'sex': '男'}
# dic3 = {'Author': 'Python当打之年', 'age': 99, 'sex': '男'}import copy
list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
dic2 = dic1
dic3 = dic1.copy()
dic4 = copy.deepcopy(dic1)
dic1['age'].remove(18)
dic1['age'] = 20
# dic1 = {'Author': 'Python当打之年', 'age': 20, 'sex': '男'}
# dic2 = {'Author': 'Python当打之年', 'age': 20, 'sex': '男'}
# dic3 = {'Author': 'Python当打之年', 'age': [99], 'sex': '男'}
# dic4 = {'Author': 'Python当打之年', 'age': [18, 99], 'sex': '男'}list1 = ['Author', 'age', 'sex']
dic1 = dict.fromkeys(list1)
dic2 = dict.fromkeys(list1, 'Python当打之年')
# dic1 = {'Author': None, 'age': None, 'sex': None}
# dic2 = {'Author': 'Python当打之年', 'age': 'Python当打之年', 'sex': 'Python当打之年'}list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
Author = dic1.get('Author')
# Author = Python当打之年
phone = dic1.get('phone')
# phone = None
phone = dic1.get('phone','12345678')
# phone = 12345678list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
items = dic1.items()
print('items = ', items)
print(type(items))
print('items = ', list(items))
# items = dict_items([('Author', 'Python当打之年'), ('age', [18, 99]), ('sex', '男')])
# <class 'dict_items'>
# items = [('Author', 'Python当打之年'), ('age', [18, 99]), ('sex', '男')]list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
keys = dic1.keys()
print('keys = ', keys)
print(type(keys))
print('keys = ', list(keys))
# keys = dict_keys(['Author', 'age', 'sex'])
# <class 'dict_keys'>
# keys = ['Author', 'age', 'sex']list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
sex = dic1.pop('sex')
print('sex = ', sex)
print('dic1 = ',dic1)
# sex = 男
# dic1 = {'Author': 'Python当打之年', 'age': [18, 99]}list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
dic1.popitem()
print('dic1 = ',dic1)
# dic1 = {'Author': 'Python当打之年', 'age': [18, 99]}list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
dic1.setdefault('Author', '当打之年')
print('dic1 = ',dic1)
# dic1 = {'Author': 'Python当打之年', 'age': [18, 99], 'sex': '男'}
dic1.setdefault('name', '当打之年')
print('dic1 = ',dic1)
# dic1 = {'Author': 'Python当打之年', 'age': [18, 99], 'sex': '男', 'name': '当打之年'}list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
print('dic1 = ',dic1)
# dic1 = {'Author': 'Python当打之年', 'age': [18, 99], 'sex': '男'}
list3 = ['Author', 'phone' ]
list4 = ['当打之年', 12345678]
dic2 = dict(zip(list3, list4))
print('dic2 = ',dic2)
# dic2 = {'Author': '当打之年', 'phone': 12345678}
dic1.update(dic2)
print('dic1 = ',dic1)
# dic1 = {'Author': '当打之年', 'age': [18, 99], 'sex': '男', 'phone': 12345678}list1 = ['Author', 'age', 'sex']
list2 = ['Python当打之年', [18,99], '男']
dic1 = dict(zip(list1, list2))
values = dic1.values()
print('values = ', values)
print(type(values))
print('values = ', list(values))
# values = dict_values(['Python当打之年', [18, 99], '男'])
# <class 'dict_values'>
# values = ['Python当打之年', [18, 99], '男']
