主题：请教学习手工编码填充数据中代码的问题

 上传文件，参考 http://www.foxtable.com/bbs/dispbbs.asp?boardid=2&Id=78

参考

Dim Cols1() As String = {"A表数据1","A表数据2","A表数据3"}
Dim Cols2() As String = {"B表数据1","B表数据2","B表数据3"}
For Each dr1 As DataRow In DataTables("表A").Select("")
    Dim dr2 As DataRow = DataTables("表B").Find("B表数据1 = '" & dr1("A表数据1") & "' and B表数据2 = '" & dr1("A表数据2") & "' and B表数据3 = '" & dr1("A表数据3") & "'")
    If dr2 Is Nothing
        dr2 = DataTables("表B").AddNew()
    End If
    For i As Integer = 0 To Cols1.Length -1
        dr2(Cols2(i)) = dr1(Cols1(i))
    Next
Next

如果不想去重，就这样写

Dim Cols1() As String = {"A表数据1","A表数据2","A表数据3"}
Dim Cols2() As String = {"B表数据1","B表数据2","B表数据3"}
For Each dr1 As DataRow In DataTables("表A").Select("")
    Dim dr2 As DataRow = DataTables("表B").AddNew()
    For i As Integer = 0 To Cols1.Length -1
        dr2(Cols2(i)) = dr1(Cols1(i))
    Next
Next