这是一项经典的家庭作业 - 请提供代码。



我是请附上 wilkus70 的评论。你每次都会通过一个保存按钮来保存出勤率。

所以你应该要求接收所有 empID $ c $的条目c>你要求它。



所以这将是





That is a classic homework task - please provide code.

I'd go with the comment of wilkus70. you're saving the attendance each time with a save-button to the DB.
So you should make an request to receive all entries which have the empID you are requesting it for.

so that would be

SELECT * FROM [tablename] WHERE empID IS LIKE '[empID]'

（请注意'掩盖值'

(please notice the ' to mask the value)