如何从数组中获取三元组？

def findTriplets(nums):
    triplets = []
    n = len(nums)
    nums.sort()  # 先对数组进行排序，方便后续判断

    for i in range(n - 2):
        # 跳过重复的元素，避免重复的三元组
        if i > 0 and nums[i] == nums[i - 1]:
            continue

        left = i + 1
        right = n - 1

        while left < right:
            total = nums[i] + nums[left] + nums[right]

            if total == 0:
                triplets.append([nums[i], nums[left], nums[right]])
                # 跳过重复的元素，避免重复的三元组
                while left < right and nums[left] == nums[left + 1]:
                    left += 1
                while left < right and nums[right] == nums[right - 1]:
                    right -= 1
                left += 1
                right -= 1
            elif total < 0:
                left += 1
            else:
                right -= 1

    return triplets