当然也有可变元祖:
可变元组:(即元组里面有列表) a = (1,2,3,[7,8,9])
a[3][0] = 4
a[3][1] = 5
a[3][2] = 6a
执行结果:(1, 2, 3, [4, 5, 6])
来源: http://www.bubuko.com/infodetail-2302338.html