扩展写法

# 一行代码合并字典
# {**{'键':'值','键':'值'},**{'键','值'}}
dic = {**{'a':1,'b':2},**{'c':3},**{'d':4}}
print(dic)
# {'a': 1, 'b': 2, 'c': 3, 'd': 4}

# 一行代码查看多个列表最大值
print(max([[1,2,3],[4,5,7,8],[6]],key = lambda v:max(v)))
# [4, 5, 7, 8]
print(max(max([[1,2,3],[4,5,7,8],[6]],key = lambda v:max(v))))
# 8

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2020-04-21