Python substr_replace示例

示例#1

	def test_ReplaceStringWithZeroLength(self):
		myString = substr_replace('abcdefgh', 'bill', 2, 0)

		self.assertEqual(myString, 'abbillcdefgh')

示例#2

	def test_ReplaceStringWithNegativeLength(self):
		myString = substr_replace('abcdefgh', 'bill', 2, -2)

		self.assertEqual(myString, 'abbillgh')

示例#3

	def test_ReplaceStringWithPositiveLength(self):
		myString = substr_replace('abcdefgh', 'bill', 0, 4)

		self.assertEqual(myString, 'billefgh')

示例#4

	def test_ReplaceStringWithNoneString(self):
		myString = substr_replace('abcdefgh', None, 0)

		self.assertEqual(myString, 'abcdefgh')

示例#5

	def test_ReplaceNoneString(self):
		myString = substr_replace(None, 'bill', 0)

		self.assertEqual(myString, 'bill')

示例#6

	def test_ReplaceStringWithNegativeStartIndex(self):
		myString = substr_replace('abcdefgh', 'bill', -1)

		self.assertEqual(myString, 'abcdefgbill')

示例#7

	def test_ReplaceStringZeroStartIndex(self):
		myString = substr_replace('abcdefgh', 'bill', 0)

		self.assertEqual(myString, 'bill')