(单选题, )
下面代码的输出结果是( )

(单选题, )
下面代码的输出结果是( )
A = [1, 2, 3]
B = a[:]
Print(b)

A.[]

B.[1, 2, 3]

C.0xF0A9

D.[3,2,1]

正确答案是B