C#3.0/LINQ的新下载

原文: New drop of C# 3.0/LINQ

下载地址：http://www.microsoft.com/downloads/details.aspx?familyid=1e902c21-340c-4d13-9f04-70eb5e3dceea&displaylang=en

我喜欢它的这一特色：LambdaExpression.Compile

Expression<Func<int, int>> expr = a => a + 3;

Console.WriteLine(expr); // prints "a => Add(a, 3)"

Func<int, int> func = expr.Compile(); // LCG's an MSIL method from the expr

Console.WriteLine(func(4)); // prints "7"

这些代码等同于

(define expr '(lambda (a) (+ a 3)))

(display expr)

(define func (eval expr (scheme-report-environment 5)))

(display (func 4))

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