解决Python使用列表副本的问题

squares = list(range(1, 11))
 
print('squares原始值为：', end='')
print(squares)
 
# 使用列表赋值
numbers_squares = squares
print('numbers_squares所有元素为：', end='')
print(numbers_squares)
 
# 为squares列表添加数字100
squares.append(100)
print('添加数字后的squares值：', end='')
print(squares)
 
# 为squares列表添加数字200
numbers_squares.append(200)
print('添加数字后的number_squares值：', end='')
print(numbers_squares)

squares原始值为：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
numbers_squares所有元素为：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
添加数字后的squares值：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100]
添加数字后的number_squares值：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100, 200]

squares = list(range(1, 11))
 
print('squares原始值为：', end=' ')
print(squares)
 
# 使用切片复制squares列表
numbers_squares = squares[:]
print('numbers_squares所有元素为：', end=' ')
print(numbers_squares)

squares原始值为： [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
numbers_squares所有元素为： [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

squares = list(range(1, 11))
 
print('squares原始值为：', end='')
print(squares)
 
# 使用切片复制squares列表
numbers_squares = squares[:]
print('numbers_squares所有元素为：', end='')
print(numbers_squares)
 
# 为squares列表添加数字100
squares.append(100)
print('添加数字后的squares值：', end='')
print(squares)
 
# 为squares列表添加数字200
numbers_squares.append(200)
print('添加数字后的number_squares值：', end='')
print(numbers_squares)

squares原始值为：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
numbers_squares所有元素为：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
添加数字后的squares值：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 100]
添加数字后的number_squares值：[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 200]