lambda表達式進行物件結合運算的實例詳解

零下一度
發布: 2017-06-28 15:46:40
原創
1785 人瀏覽過

1publicclass Person : BaseDomain
 2    {
 3long _id;
 4string firstName;
 5string secondName;
 6string comments;
 7 8public Person()
 9        {}
1011public Person(long id)
12        {
13this._id = id;
14        }
15public Person(long id,string firstName, string secondName)
16        {
17this._id = id;
18this.firstName = firstName;
19this.secondName = secondName;
20             comments = String.Empty;
21        }
22public Person(long id,string firstName, string secondName, string comments)
23             : this(id,firstName, secondName)
24        {
25this.comments = comments;
26        }
2728publicstring FirstName
29        {
30get { return firstName; }
31set { firstName = value; }
32        }
33publicstring SecondName
34        {
35get { return secondName; }
36set { secondName = value; }
37        }
38publicstring Comments
39        {
40get { return comments; }
41set { comments = value; }
42        }
43publicoverridestring ToString()
44        {
45returnstring.Format("FirstName: {0}\tSecondName: {1}\tComment: {2}", this.firstName, this.secondName, this.comments);
46        }
47     }
登入後複製

View Code

上面是測試需要的簡單型別:Person

1var list = new List<Person>(5);
 2     list.Add(new Person(1,"咬金","程","拿斧子砍人的那个家伙");
 3     list.Add(new Person(2,"咬金","程","拿斧子砍人的那个家伙");
 4     list.Add(new Person(3,"貂蝉","王","3技能很厉害哦");
 5     list.Add(new Person(4,"昭君","李","适合打团战");
 6     list.Add(new Person(5,"亚瑟","毛","狠狠厚的肉");
 7 8//进行去重操作,需要先引入linq引用"using System.Linq; " 9var result_list = list.GroupBy(obj=>obj.FirstName).Select(g=>g.First()).ToList();
1011foreach(var item in result_list)
12    {
13        Console.WriteLine(item);
14     }
登入後複製

View Code

以上就介紹了Lambda表達式使用lambda表達式進行物件結合的篩選操作,包括了Lambda表達式方面的內容,希望對.NET教學有興趣的朋友有所幫助。


以上是lambda表達式進行物件結合運算的實例詳解的詳細內容。更多資訊請關注PHP中文網其他相關文章!

相關標籤:
來源:php.cn
本網站聲明
本文內容由網友自願投稿,版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容,請聯絡admin@php.cn
熱門教學
更多>
最新下載
更多>
網站特效
網站源碼
網站素材
前端模板