合并XML文档
...........\PutTogetherXML
...........\..............\BillingEnvelope.xml
...........\..............\Form1.Designer.cs
...........\..............\Form1.cs
...........\..............\Form1.resx
...........\..............\FulfillmentEnvelope.xml
...........\..............\Program.cs
...........\..............\Properties
...........\..............\..........\AssemblyInfo.cs
...........\..............\..........\Resources.Designer.cs
...........\..............\..........\Resources.resx
...........\..............\..........\Settings.Designer.cs
...........\..............\..........\Settings.settings
...........\..............\PutTogetherXML.csproj
...........\..............\ReceivedInvoice.xml
...........\..............\ShippingEnvelope.xml
...........\..............\bin
...........\..............\...\Debug
...........\..............\...\.....\PutTogetherXML.exe
...........\..............\...\.....\PutTogetherXML.pdb
...........\..............\...\.....\PutTogetherXML.vshost.exe
...........\..............\obj
...........\..............\...\Debug
...........\..............\...\.....\PutTogetherXML.Form1.resources
...........\..............\...\.....\PutTogetherXML.Properties.Resources.resources
...........\..............\...\.....\PutTogetherXML.csproj.GenerateResource.Cache
...........\..............\...\.....\PutTogetherXML.exe
...........\..............\...\.....\PutTogetherXML.pdb
...........\..............\...\PutTogetherXML.csproj.FileList.txt
...........\PutTogetherXML.sln
...........\PutTogetherXML.suo