利用非接触式的IC卡，使用C++编程语言实现公司考勤制度的考勤卡系统，使用时只需下载相关的驱动程序即可实现该功能-The use of non-contact IC card, the use of C++ programming language to achieve the company' s performance appraisal performance appraisal system of the card, when used simply download the re