delayering,

by using fib technique: toward ultimate top-down delayering for
矢量展平卡通人物合并业务插图元素
by using fib technique: toward ultimate top-down delayering for
扁平化【delayering】
3,'f':{'g':4}},'h':5}print(arr)#思路一 递归实现defdelayering(arr