c# 敏捷3 连接，批量处理，分页

   class Program
     {
         public class post
         {
             public int id { get; set; }
             public string name { get; set; }
             public int age { get; set; }
             public string pd { get; set; }
         }
         public class get
         {
             public int id { get; set; }

             public string  source { get; set; }
         }

         static void Main(string[] args)
         {

             var pro = new List<post>
           {
                 new post { id = ,name="",age=,pd="sad"},
                 new post { id = ,name="",age=,pd="sad"},
                 new post { id =,name="",age=,pd="sad"},
                 new post {id = , name="",age=,pd="sad"},
           };
             var prd = new List<get>
           {
                 new get { id =,source=""},
                 new get { id = ,source="124s"},
                 new get {id = , source="124d5"},
                 new get {id = , source="12f6"},
           };

             var uds = pro.Join(prd, u => u.id, d => d.id, (u, d) => new { id = u.id, name = u.name, age = u.age, source = d.source }).ToList();
             //uds = [{ id = 1, name = "123", age = 1, source = "123" },{ id = 4, name = "125", age = 111, source = "124s" }];

             pro.ForEach(o => { o.pd = null; if (o.pd == null) o.pd = "sd"; });//批量处理

             int pageIndex = , pageSize=; //分页
             pro.Skip((pageIndex - ) * pageSize).Take(pageSize).ToList();

          　　var union = pro.Select(o =>  o.id).Union(prd.Select(o => o.id)).ToList() ;  // 接表
             Console.Read();

         }

     }