好久没来了,有个小问题请教下
DataTables("表A").DataRows.clear
For i As Integer = 0 To 4
If i = 0 Then
Dim nr As DataRow = DataTables("表A").AddNew
nr("第一列") = i
Else
Dim drs As List(of DataRow) = DataTables("表A").Select("第一列 = "& i-1 &"")
For j As Integer = 0 To drs.count - 1
Dim nr As DataRow = DataTables("表A").AddNew
nr("第一列") = i
nr("第二列") = j
Next
End If
Next
1.循环语句的执行顺序是从里到外,还是从外到里
2.在else条件后面,为什么已经增加了nr("第二列") = j,在循环后结果总是0呢.
[此贴子已经被作者于2011-12-16 18:46:16编辑过]