示例#1
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 def test_4(self):
     self.assertEqual(roman_to_int('IV'), 4)
示例#2
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 def test_1(self):
     self.assertEqual(roman_to_int('I'), 1)
示例#3
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 def test_222(self):
     self.assertEqual(roman_to_int('CCXXII'), 222)
示例#4
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 def test_1904(self):
     self.assertEqual(roman_to_int('MCMIV'), 1904)
示例#5
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 def test_21(self):
     self.assertEqual(roman_to_int('XXI'), 21)