IC卡刷卡考勤程序，纯粹实现刷卡时间的记录，使用Access数据库，查询统计功能由其他程序完成。 关键字 : COM 端口通讯，考勤-IC Card appraisal procedures, 0800-099799 purely to achieve record time, the use of Access databases, Statistical functions inquiries from other procedures are completed. Keywords :

C# 电脑端58打印机源码 基于com口通讯-C# 58 printer source computer-based com port communication ....

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