get_both_code 获取几个股票相同的版块
        
        Arguments:
            code {[type]} -- [description]
        
        Returns:
            [type] -- [description]

def get_both_code(self, code):
        """get_both_code 获取几个股票相同的版块
        
        Arguments:
            code {[type]} -- [description]
        
        Returns:
            [type] -- [description]
        """

        return self.new(self.data.loc[(slice(None), code), :])