Dim i As Integer
Dim s As Integer = Tables("统计").Rows.Count
For i = 0 To s-1
Dim r As Row = Tables("统计").Rows(i)
r("单数") = DataTables("返工单").SQLCompute("Count(\'" & r("姓名") & "\')")
r("用时") = DataTables("返工单").SQLCompute("Sum(\'" & r("姓名") & "\')")
r("平均用时") = r("用时") / r("单数")
Next