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露心

#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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