我是这么做的.是不是有点笨
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
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
2019-11-04
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