1.移除元素
class Solution:
def removeElement(self, nums, val):
i = 0
for j in range(0,len(nums)):

        if (nums[j] != val):

             nums[i] = nums[j]
             i=i+1

     for k in nums[0:i]:
         print(k)
     return i
 

使用了深復制：
import copy
class Solution:
def removeElement(self, nums, val):

    _nums = copy.deepcopy(nums)
    for num in _nums:
        if num == val:
            nums.remove(num)
    length = len(nums)
    return length,nums

2.刪除有序數組重復元素
class Solution:
def removeDuplicates(self, nums):
i=0
lenth=len(nums)
for j in range(1,lenth):

    for k in nums[0:i+1]:
         print(k)

    return i+1

註釋：其中將完成操作的新數組也進行了輸出

每日一題之LeetCode移除元素 刪除有序數組重復元素