专家坐堂-weui框架开发，区分多个按钮，怎么判断是哪个按钮？Foxtable(狐表) - 新一代数据库软件，完美融合Access、Foxpro、Excel、vb.net之优势，人人都能掌握的快速软件开发工具!

Dim wb As New weui
Select Case e.Path
    Case "input.htm"
        If e.PostValues.Count = 0 Then
            wb.AddForm("","form1","input.htm")
            With wb.AddInputGroup("form1","ipg1","数据输入")
                .AddInput("客户","客户","text")
                .AddInput("日期","日期","date")
                .Addinput("产品","产品","text")
                .Addinput("数量","数量","number")
            End With
            With wb.AddButtonGroup("form1","btngrp1",False)
                .Add("btn1", "按钮1", "submit").Value = "btn1"
                .Add("btn2", "按钮2", "submit").Value = "btn2"
                .Add("btn3", "按钮3", "submit").FormAction = "accept.htm"
                .Add("btn4", "按钮4", "submit").FormAction = "accept.htm?type=1&model=ha"
            End With
        Else
            wb.InsertHTML("接收到的数据有:<br/>")
            For Each key As String In e.PostValues.Keys
                wb.InsertHTML(key & ":" & e.PostValues(key) & "<br/>")
            Next
        End If
    Case "accept.htm"
        wb.InsertHTML("通过accept.htm接收到的数据有:<br/>")
        For Each key As String In e.PostValues.Keys
            wb.InsertHTML(key & ":" & e.PostValues(key) & "<br/>")
        Next
End Select
e.WriteString(wb.Build)