# add a new key-value pair to the merged dictionary merged_dict['e'] = 6 # updates dict1 print(merged_dict['e']) # prints 6 输出 1 3 5 6 使用ChainMap合并字典是一种简洁高效的方法，并且允许您轻松地更新和修改合并后的字典。6. 使用dict构造函数 def merge_dictionaries(dict1, dict2):me...
union运算符组合两个字典的键和值,并且两个字典中的任何公共键从第二个字典中获取值。 # method to merge two dictionaries using the dict() constructor with the union operator (|)defmerge(dict1,dict2):# create a new dictionary by merging the items of the two dictionaries using the union operator...
def merge(dict1, dict2): # create a new dictionary by merging the items of the two dictionaries using the union operator (|) merged_dict = dict(dict1.items() | dict2.items()) # return the merged dictionary return merged_dict # Driver code dict1 = {'a': 10, 'b': 8} dict2 =...
z = merge_two_dicts(x, y) 你也可以定义一个函数,合并多个dict,例如 def merge_dicts(*dict_args): """ Given any number of dicts, shallow copy and merge into a new dict, precedence goes to key value pairs in latter dicts. """ result = {} for dictionary in dict_args: result.update(...
Python dictionaries don’t allow items with the same key ie duplicate items, so if we have an item with the same key (country) with different values in both dictionaries, the dictionary gets updated with the later key-value pair. Merge two or more dictionaries with ** operator ...
如果是d1 = {'a': 1, 'b': 2} 和 d2 = {'a': 2, 'c': 3} 合并，要保留d1 中的...
For dictionaries x and y, z becomes a shallowly merged dictionary with values from y replacing those from x. z = {**x, **y} defmerge_two_dicts(x,y):# start with x's keys and valuesz=x.copy()# modifies z with y's keys and values & returns Nonez.update(y)returnz ...
def merge_two_dicts(x, y): z = x.copy() # start with x's keys and values z.update(y) # modifies z with y's keys and values & returns None return z z = merge_two_dicts(x, y) print(z) 输出 1 {'a': 1, 'hello': 'kitty', 'b': 2} ...
b = {'y':3,'z':4}print(merge_two_dicts(a, b)) # {'y':3,'x':1,'z':4} AI代码助手复制代码 在Python 3.5 或更高版本中,我们也可以用以下方式合并字典: defmerge_dictionaries(a, b)return{**a, **b} a = {'x':1,'y':2} ...
def merge_two_dicts(x, y): z = x.copy() # 复制x到z z.update(y) # 将z与y合并,z已经改变 return z 1. 2. 3. 4. 现在就可以使用下面的一行代码合并x和y了,而且x和y都没有改变。 print(merge_two_dicts(x,y)) 1. 如果还想合并不定数量的字典,如3个字典、5个字典,可以使用下面的函数...