def write_report(self):
        """将软件报表写入文件"""

        file_name = ZtcReport.get_file_name(CURRENT_DIR, self.today)
        file_obj = file(file_name, 'w')
        strhead = ','.join(self.head) + '\n'
        file_obj.write(strhead)
        for report in self.result:
            file_obj.write(ZtcReport.to_string(report)+'\n')
        file_obj.close()
    def get_yesterday_report(self, yesterday):
        """获取昨天的直通车报告"""

        file_name = ZtcReport.get_file_name(CURRENT_DIR, self.yesterday)
        id_report_dict = {}
        if os.path.isfile(file_name):
            for line in file(file_name):
                report = ZtcReport.parser_ztc_report(line)
                id_report_dict[report['id_name']] = report
        return id_report_dict