import copya = [[1,2],"zhangw","haha"]b = copy.copy(a)   #浅拷贝, 只复制第一次地址，固定地址复制，可变地址共享b2 = copy.deepcopy(a)  #深拷贝，完全复制一份choose = int(input("请选择深浅,1深，2浅："))if choose == 2:    b[1] = "zhangwei"    b[0][1] = 22    print("b=%s"%b)    print("a=%s"%a)else:    b2[1] = "zhangwei"    b2[0][1] = 22    print("b2=%s"%b2)    print("a=%s"%a)