就加上时间条件即可
Dim time As Date = Date.Now
Dim s As Integer = DataTables("message").compute("count(_Identify)","reciever = '" & User.Name & "' and flag = 1 and sendtime >= #" & time.AddSeconds(-10) & "# and sendtime <= #" & time.AddSeconds(10) & "#")
If s>0 Then
Vars("sd") = s
Forms("窗口7").Open(SysInfo.WorkingAreaWidth-600,SysInfo.WorkingAreaHeight)
MyTimers("计划1").Enabled = False
For i As Integer = 1 To 330
Forms("窗口7").setbounds(SysInfo.WorkingAreaWidth-600,SysInfo.WorkingAreaHeight-i,600,300)
Next
End If