myList = [[1,2], [3,4], [5,6], [7,8], [9,0]]
# iterate through the list
# prints the list in order 1,2,3,4,5,6,7,8,9,0
for subList in myList:
for number in subList:
print(number)
# index the list
myList[1] == [3,4]
myList[1][0] == 3
# slice the list
myList[1:4] == [[3,4], [5,6], [7,8]]
myList[1:] == [[3,4], [5,6], [7,8], [9,0]]
myList[:4] == [[1,2], [3,4], [5,6], [7,8]]
这些工具可能会有所帮助。你知道吗
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