身份证合法性检查程序,用它可以检查出身份证的位数及出生年月日蝗合法性-Identity legitimacy of procedures, use it to check out the identity of the median and the dates of birth locust legitimacy

输入开始日期和结束日期可以查询期间内的工作日，表holidays里存放非周六周日的节假日,表wdays里存放节假日调整后需要上班的周六周日,请自己添加对应日期.-Enter the start and end dates can be queried during the working day, holidays in the table storing non-holiday Saturdays and Sundays, in the storage table wdays adjusted

企事业单位员工年休假管理系统，该系统能随时统计查询出某个员工的年休假天数，休假日期和员工的计划休假日期，部分及全单位的员工休假情况。-Enterprises employees annual leave management system, which can always check out the statistics for an employee annual leave days, vacation dates and staff plan a vacation date, some