示例#1
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 def test_8(self):
     self.assertEqual(is_valid("a923b"), False)
示例#2
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 def test_9(self):
     self.assertEqual(is_valid("88231"), True)
示例#3
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 def test_6(self):
     self.assertEqual(is_valid("aabcd"), False)
示例#4
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 def test_7(self):
     self.assertEqual(is_valid("a8887"), False)
示例#5
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 def test_5(self):
     self.assertEqual(is_valid("19923"), True)
示例#6
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 def test_4(self):
     self.assertEqual(is_valid("1  34 99"), False)
示例#7
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 def test_3(self):
     self.assertEqual(is_valid("732 32"), False)
示例#8
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 def test_2(self):
     self.assertEqual(is_valid("853a7"), False)
示例#9
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 def test_1(self):
     self.assertEqual(is_valid("49001"), True)