例子1：

In [17]: nums = range(10)

In [18]: nums_temp = nums

In [20]: nums_temp[0] = "comk"

In [21]: nums

Out[21]: [‘comk‘, 1, 2, 3, 4, 5, 6, 7, 8, 9]

In [22]: nums_temp

Out[22]: [‘comk‘, 1, 2, 3, 4, 5, 6, 7, 8, 9]

例子2：

In [23]: nums = range(10)

In [25]: nums_temp = nums[:]

In [26]: nums_temp[0] = "comk"

In [27]: nums

Out[27]: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

In [28]: nums_temp

Out[28]: [‘comk‘, 1, 2, 3, 4, 5, 6, 7, 8, 9]

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