python-leetcode删除排序数组中的重复项

class Solution:
    def removeDuplicates(self, nums):
        """
        :type nums: List[int]
        :rtype: int
        """
        i = 1
        while i < len(nums):
            if nums[i] == nums[i-1]:
                nums.pop(i)
            else:
                i+=1
        return len(nums)