C# Linq

发布时间：2020-12-16 01:19:02 所属栏目：百科来源：网络整理

导读：无聊一下，感觉有点用记录一下，^_^? 用过linq的请绕道... ListTest list = new ListTest(); 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" });

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

（编辑：李大同）

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