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考勤未打卡的有关问题

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Jun 13, 2016 pm 12:06 PM

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考勤未打卡的问题
假如，员工的打卡数据记录在A表里，有的员工忘打卡了，这时我要怎么统计员工在当月有多少次没有打卡记录？我一开始是这样的思路：假如每天要打4次卡，那么4*当月天数=总打卡次数，然后再用总打卡次数-已打卡的记录数=未打卡的次数。
但是我发现有一个问题，我们公司是每周一休息，也就是说总打卡次数要除去周一的时间，但是有些月份有4个周一，有些月份有5个周一，如果那一个月是4个周一，那么总打卡次数要减掉16次，如果那一个月是5个周一，就要减掉20次，那我要怎么判断当月有多少个周一呢？
------解决思路----------------------
(每月天数 - (7 - 第一天的星期值)) / 7
取整就是有效周数

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