### 448. Find All Numbers Disappeared in an Array题目:<https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/>难度:Easy```pythonclassSolution(object):deffindDisappearedNumbers(self,nums):""" :type nums: List[int] :rtype: List[int] """returnlist(set(range(1,len(nums)+1))-set(nums))```