Linq实现分组后取最大（小）值

var beatles = (new[] {
new { inst = "张三" , age="50" },
new { inst = "张三" , age="20" },
new { inst = "何英" , age="35" },
new { inst = "张三" , age="60" },
new { inst = "何英" , age="18" }
});

var o11 = from d in beatles
group d by d.inst into g
select new
{
Id = g.Max(m => m.age),
Name = g.Key
};

查询结果是：

inst = "张三" , age="60"
inst = "何英" , age="35"

原文地址: https://www.cnblogs.com/lbhqq/p/7488103.html

巴特西

Linq实现分组后取最大（小）值

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