刘惜君

无聊一下，感觉有点用记录一下，^_^ 用过linq的请绕道... List<Test> list = new List<Test>(); list.Add(new Test { score = 10, name = "张君宝" }); list.Add(new Test { score = 20, name = "刘惜君" }); list.Add(new Test { score = 20, name = "刘惜君" }); list.Add(new Test { score = 30, name = "八戒" }); int total = (from temp in list where temp.name == "刘惜君" select temp.age).Count(); int score = (from temp in list where temp.name == "刘惜君" select temp.score).Sum(); this.textBox1.Text = "刘惜君：" + total + "人" + score + "score"; MessageBox.Show(this.textBox1.Text); //return 刘惜君：2人40score 　　 来源： https://www.cnblogs.com/YYkun/p/11603069