链接：283. 移动零 - 力扣（LeetCode）

直接解

 1 class Solution(object):
 2     def moveZeroes(self, nums):
 3         """
 4         :type nums: List[int]
 5         :rtype: None Do not return anything, modify nums in-place instead.
 6         """
 7         num = 0
 8         while 0 in nums:
 9             num = num + 1
10             nums.remove(0)
11         while num > 0:
12             num = num - 1
13             nums.append(0)
14         return nums
15

官方双指针解法，时间复杂度低，O(n)

 1 class Solution(object):
 2     def moveZeroes(self, nums):
 3         """
 4         :type nums: List[int]
 5         :rtype: None Do not return anything, modify nums in-place instead.
 6         """
 7         left = right = 0
 8         n = len(nums)
 9         while right < n:
10             if nums[right] != 0:
11                 nums[left], nums[right] = nums[right], nums[left]
12                 left += 1
13             right += 1
14         return nums
15