C# Linq

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.html