我想使用表达式树动态生成以下select语句:
var v = from c in Countries
where c.City == "London"
select new {c.Name, c.Population};
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我已经研究出如何生成
var v = from c in Countries
where c.City == "London"
select new {c.Name};
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但我似乎无法找到一个构造函数/重载,让我在select lambda中指定多个属性.