print('^^^下雪了^^^')

pinetree = ('==========开始做梦了==========')
print(pinetree)
def fun_christmastree():
    pinetree = ('挂上彩灯，礼物。。。我变成了一颗圣诞树')
    print(pinetree)
    global pinetree 
    pinetree = ('==========梦醒了==========')
    print(pinetree)
fun_christmastree()




print('我的身上落满雪花，我是一棵松树')
    
