答案有问题吧？

question后面哪有要加,啊。。。。难怪编译好几次都错

IT小笼包

2015-11-07

源自：初识Python 3-6

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hallen
2015-12-16

for x in ['1', '2', '3', '4', '5', '6', '7', '8', '9']:
    for y in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']:
        if x < y:
            print x + y