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对于如下的二维数组：

[Action --1], 0
[Action --2], 0

将其改为：

[Action --1], 1
[Action --2], 0

再改为：

[Action --1], 2
[Action --2], 0

代码如下：

mylist = []

myfactor01= []
myfactor01.append("[Action --1]")
myfactor01.append(0)

mylist.append(myfactor01)
myfactor01= []

myfactor01.append("[Action --2]")
myfactor01.append(1)

mylist.append(myfactor01)
myfactor01= []

##change the mylist[0][1]

tmplist = mylist[0]
tmplist[1] = 1

tmplist = []

mytmp = mylist[0]
print (mytmp)
print (mytmp[1])

mytmp=[]

print (mylist)
print (mylist[0][1])

mylist[0][1] = 2

print (mylist)

输出结果如下：

>>> print (mytmp[1])
1
>>>
>>> mytmp=[]
>>>
>>> print (mylist)
[['[Action --1]', 1], ['[Action --2]', 1]]
>>> print (mylist[0][1])
1
>>>
>>> mylist[0][1] = 2
>>>
>>> print (mylist)
[['[Action --1]', 2], ['[Action --2]', 1]]
>>>

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