Python 如何创建2维空数组

http://blog.csdn.net/yockie/article/details/46127829

myList = [ ( [0] * 3 ) for i in range(4) ]

>>> lists = [[] for i in range(3)]

>>> lists[0].append(3)

>>> lists[1].append(5)

>>> lists[2].append(7)

>>> lists [[3], [5], [7]]