实现了添加设备的功能，并写了Object对象的扩展CopyTo方法，实现了数据表的创建。

Data/Entities/DbDevice.cs

@@ -1,10 +1,16 @@
+using SqlSugar;
+
 namespace PMSWPF.Data.Entities;
 
+[SugarTable("Device")]
 public class DbDevice
 {
+    
+    [SugarColumn(IsPrimaryKey = true, IsIdentity = true)]//数据库是自增才配自增 
     public int  Id { get; set; }
     public string Name { get; set; }
     public string Description { get; set; }
+    public string Ip { get; set; }
     public bool IsActive { get; set; }
     public bool IsRuning { get; set; }
     

Data/Repositories/DevicesRepositories.cs

@@ -1,17 +1,29 @@
 using PMSWPF.Data.Entities;
+using PMSWPF.Excptions;
 
 namespace PMSWPF.Data.Repositories;
 
 public class DevicesRepositories:BaseRepositories
 {
-    public DevicesRepositories()
+    public DevicesRepositories():base()
     {
-        
+       var tableExist= _db.DbMaintenance.IsAnyTable<DbDevice>();
+       if (!tableExist)
+       {
+           _db.CodeFirst.InitTables<DbDevice>();
+       }
     }
     
     public async Task<int> Add(DbDevice dbDevice)
     {
-      return await _db.Insertable<DbDevice>(dbDevice).ExecuteCommandAsync();
+       var exist=await _db.Queryable<DbDevice>().Where(d=>d.Name==dbDevice.Name).FirstAsync();
+       if (exist != null)
+       {
+           throw new DbExistException("设备名称已经存在。");
+       }
+      var res= await _db.Insertable<DbDevice>(dbDevice).ExecuteCommandAsync();
+      
+      return res;
     }
     
     public async Task<List<DbDevice>> GetAll()