干脆利索

import copy l1 = [1, 2, 3] l2 = l1 print(l1 is l2) l1 = [1, 2, 3] l2 = list(l1) print(l1 is l2) l1 = [1, 2, 3] l2 = copy.copy(l1) print(l1 is l2) #结果 True False False

直接上代码 l1 = [1, 2, 3] print(id(l1)) l1 = l1+[4] print(id(l1)) l1.append([5,6]) print(id(l1)) l1 += [7,8] print(id(l1)) print(l1) 输出结果： 140558851599888 140558850678944 140558850678944 140558850678944 [1, 2, 3, 4, [5, 6], 7, 8] ...