QTP的Test参数以及顶级Action参数的使用

rivermen

Dim qtApp ,pDefColl,pDef ,rtParams,rtParam
Set qtApp = CreateObject("QuickTest.Application")
qtApp.Launch
qtApp.Visible = True
qtApp.Open "C:\Test1"
Set pDefColl = qtApp.Test.ParameterDefinitions
cnt = pDefColl.Count
Indx = 1
While Indx <= cnt
    Set pDef = pDefColl.Item(Indx)
    Indx = Indx + 1
Wend
Set rtParams = pDefColl.GetParameters()
Set rtParam = rtParams.Item("InParam1")
rtParam.Value = "songfun"
qtApp.Test.Run , True, rtParams
MsgBox rtParams.Item("OutParam1").Value  

这块比较难理解，能告诉我那里能找到相关的材料？