def remove_word(my_list, my_word, N):
   count = 0

   for i in range(0, len(my_list)):
      if (my_list[i] == my_word):
      count = count + 1

      if(count == N):
         del(my_list[i])
         return True

   return False

my_list = ['Harry', 'Jane', 'Will', 'Rob', 'Harry']
print("列表是:")
print(my_list)
my_word = 'Harry'
N = 2

flag_val = remove_word(my_list, my_word, N)

if (flag_val == True):
   print("更新后的列表为：", my_list)
else:
   print("项并未更新")

列表是 :
['Harry', 'Jane', 'Will', 'Rob', 'Harry']
更新后的列表为： ['Harry', 'Jane', 'Will', 'Rob']