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标题:求助 时间对比 报错 求助

1楼
夜点蚊香 发表于:2024/4/27 10:48:00
Dim Day As Date = #21:00#
Dim Day1 As Date = #23:00#
Dim tp As TimeSpan
tp = day - day1
    Output.Show(Format(day1,"HH:mm:ss"))
Output.Show(tp.TotalSeconds)

Dim dtkqsj1 As DataTable = Functions.Execute("生成cmd数据表","小程序考勤","")
Dim ckd123  As DataRow
ckd123 = dtkqsj1.SQLFind("记事人 = '杜义' And 上传时间 = '2024-03-31' And cast(记事时间 as time) >= '" & Format(day,"HH:mm") & "' And cast(记事时间 as time) <= '" & Format(day1,"HH:mm") & "'")


If ckd123 IsNot Nothing Then
    Output.Show(ckd123("上传时间"))
    Output.Show(ckd123("记事时间"))
    Output.Show(Format(ckd123("记事时间"),"HH:mm:ss"))
Else
    Output.Show(Format(ckd123("记事时间"),"HH:mm:ss"))
End If


记事时间 ,在  day  和 day1 之间的时候 可以正确查找  记事时间超出范围以后,报错


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2楼
有点蓝 发表于:2024/4/27 11:47:00
如果ckd123为空,还是使用,肯定会出错


If ckd123 IsNot Nothing Then
    Output.Show(ckd123("上传时间"))
    Output.Show(ckd123("记事时间"))
    Output.Show(Format(ckd123("记事时间"),"HH:mm:ss"))
Else
    Output.Show(“找不到数据”)
End If
[此贴子已经被作者于2024/4/27 13:26:00编辑过]
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