VBA如何用Javascript中选定的术语对fireevent进行“更改”编码

Question

如何在VBA中为Javascript中选定术语中的fireevent“ onchange”编写代码。它不能用作编码.querySelector(".zcq0.djhtm?b=Q&a= & var & ").FireEvent "onchange"。有人可以帮忙吗，谢谢您？

Public Sub GetTWYIn()
    Dim ie As Object, URL As String, var As Object, ele As Object, td As Date
    Const max_wait_sec As Long = 10

    Set var = ThisWorkbook.Worksheets("Sheet3").Cells(1, 1)
    URL = "http://pscnetinvest.moneydj.com.tw/z/zc/zcq/zcqa/zcqa_" & var & ".djhtm"
    Set ie = CreateObject("internetexplorer.application")
    With ie
        .Visible = True
        .navigate URL
        While .Busy Or .readyState < 4: DoEvents: Wend

        With .document
            b = Timer
            Do
                On Error Resume Next
                Set ele = .querySelector("[value$='/zcq0.djhtm?b=Q&a=" & var & "']")

                On Error GoTo 0
                If Timer - td > max_wait_sec Then Exit Do
            Loop While ele Is Nothing
            If ele Is Nothing Then Exit Sub
            ele.Selected = True
            .querySelector(".zcq0.djhtm?b=Q&a= & var & ").FireEvent "onchange"
        End With
    End With
     Set ie = Nothing`
End Sub

这是html。

<SELECT name="selB" id="selB" onchange="javascript:selopn(this.options[this.selectedIndex].value);">

<OPTION value="/z/zc/zcq/zcq0.djhtm?b=Q&a=1232" >季表</OPTION>
<OPTION value="/z/zc/zcq/zcq0.djhtm?b=A&a=1232" >累計季表</OPTION>
<OPTION value="/z/zc/zcq/zcq0.djhtm?b=Y&a=1232"  selected>年表</OPTION>

</SELECT>