Python字典的合並與拆分

1.字典的合並
dict1={1:[1,11,111],2:[2,22,222]}
dict2={3:[3,33,333],4:[4,44,444]}
dictMerged2=dict(dict1, **dict2)
{1:[1,11,111],2:[2,22,222],3:[3,33,333],4:[4,44,444]}

2.字典的拆分
base = {'A':1, 'B':2, 'C':3, 'D':4, 'E':5}
subkey = ['C', 'E']
subdict=dict([(key, base[key]) for key in subkey])
{'C': 3, 'E': 5}