因为字典是无序的,用列表去保存set、get操作的顺序 class Solution: def LRU(self , operators: List[List[int]], k: int) -> List[int]: # write code here opt_dict, opt_list = {}, [] def set(key, val): if len(opt_list) < k: opt_dict[key] = val opt_list.append(key) else: del opt_dict[opt_list.pop(0)] opt_dict[key] = val o...