如何使列表项的值不引用对象

import copy

original_list = [1, 2, 3]
new_list = original_list[:]  # 使用切片操作进行浅拷贝
# 或者使用 copy() 函数进行浅拷贝
# new_list = copy.copy(original_list)

# 修改原始列表的值
original_list[0] = 4

print(original_list)  # 输出: [4, 2, 3]
print(new_list)  # 输出: [1, 2, 3]

import copy

original_list = [1, 2, 3]
new_list = copy.deepcopy(original_list)

# 修改原始列表的值
original_list[0] = 4

print(original_list)  # 输出: [4, 2, 3]
print(new_list)  # 输出: [1, 2, 3]