Python列表去重的几种方法整理_python_

list_1=[10, 1, 2, 20, 10, 3, 2, 1, 15, 20, 44, 56, 3, 2, 1] def func1(list_1): return list(set(list_1)) print('去重后的列表:',func1(list_1))

list_2 = [10, 1, 2, 20, 10, 3, 2, 1, 15, 20, 44, 56, 3, 2, 1] def func2(list_2): #定义一个空列表 mylist_2=[] #i遍历list_2 for i in list_2: #如果i不在mylist_2，则添加到mylist_2 if i not in mylist_2: mylist_2.append(i) print(mylist_2) print(func2(list_2))

list_3 = [10, 1, 2, 20, 10, 3, 2, 1, 15, 20, 44, 56, 3, 2, 1] def func3(list_3): result_list=[] temp_list=sorted(list_3) i=0 while i

list_4= [10, 1, 2, 20, 10, 3, 2, 1, 15, 20, 44, 56, 3, 2, 1] def func4(list_4): #fromkeys() 函数创建一个新字典，获取新字典的键（键值是唯一的） result_list = [] for i in {}.fromkeys(list_4).keys(): result_list.append(i) return result_list print(func4(list_4))

import itertools list_5= [10, 1, 2, 20, 10, 3, 2, 1, 15, 20, 44, 56, 3, 2, 1] def func5(list_5): list_5.sort() temp_list= itertools.groupby(list_5) result_list=[] for i,j in temp_list: result_list.append(i) return result_list print(func5(list_5))