主题：不同版本的dll外部引用问题

Dim MXpath As String = "C:\Users\ma\Desktop\c#\MX\MX\bin\Debug\MX.dll"

 Dim MXassembly As System.Reflection.Assembly = System.Reflection.Assembly.LoadFrom(MXpath)

 

 Dim MXNPOItype As Type = MXassembly.GetType("MX.ClassNPOI")

 Dim MXNPOI As Object = activator.CreateInstance(MXNPOItype)

 

 Dim a As String = MXNPOI.getsheetnames("d:\123.xlsx")

 Output.Show(a)