通讯录(基于三层架构的C#源码)

[{"title":"（ 140 个子文件 406KB ） 通讯录(基于三层架构的C#源码)","children":[{"title":"SQLDAL.csproj <span style='color:#111;'> 2.76KB </span>","children":null,"spread":false},{"title":"BackupAndRestoreDb.cs <span style='color:#111;'> 1.50KB </span>","children":null,"spread":false},{"title":"SqlDbHelper.cs <span style='color:#111;'> 6.55KB </span>","children":null,"spread":false},{"title":"SQLDAL.pdb <span style='color:#111;'> 37.50KB </span>","children":null,"spread":false},{"title":"SQLDAL.dll.config <span style='color:#111;'> 287B </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]