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山东洛馍卷大葱

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Han小胖黑洲非

#1 Created at ... [Delete] [Delete and Lock User] 
import base64
def safe_base64_decode(s):
	while len(s) % 4 != 0:
		s = s + '='
	return base64.b64decode(s)

# 测试:
assert b'abcd' == safe_base64_decode('YWJjZA=='), safe_base64_decode('YWJjZA==')
assert b'abcd' == safe_base64_decode('YWJjZA'), safe_base64_decode('YWJjZA')
print('ok')
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