command命令：
<?xml version="1.0" encoding="utf-8"?>
<RevitAddIns>
<AddIn Type="Command">
<Assembly>D:\HelloWorld\bin\Debug\HelloWorld.dll</Assembly>
<AddInId>4d8936ea-82ca-49b0-abc0-d0904d8bd716</AddInId>
<FullClassName>HelloWorld.Class1</FullClassName>
<Text>HelloWorld</Text>
<VendorId>ABC</VentorId>
</AddIn>
</RevitAddIns>
application：
<?xml version="1.0" encoding="utf-8"?>
<RevitAddIns>
<AddIn Type="Application">
<Name>External Tool</Name>
<Assembly>E:\10.24\hello\Ribbon\bin\Debug\Ribbon.dll</Assembly>
<ClientId>27f422f8-cde3-4004-8a6b-157aaa1a3ae2</ClientId>
<FullClassName>HY.Ribbon</FullClassName>
<VendorId>Autodesk</VendorId>。
</AddIn>
</RevitAddIns>