'è·åäžéšåcookie, å¹¶å°å®èŸåºäžºå­ç¬Šäž²'

def sub_output(self, *keys):

    result = []
    for key in keys:
        if self.get(key):
            result.append(((key + '=') + self.get(key).value))
    return ';    '.join(result)
