今天，我终于得到的 Func键＆LT;＆GT ; 委托，看到我怎么可以用它来使我的一些难读的LINQ查询（希望）更具可读性。

Today I finally "got" the Func<> delegate and saw how I could use it to make some of my less readable LINQ queries (hopefully) more readable.

下面是一个简单的code示例说明以上情况，在一个（非常）简单的例子

Here's a simple code sample illustrating the above, in a (very) trivial example

List<int> numbers = new List<int> { 1, 5, 6, 3, 8, 7, 9, 2, 3, 4, 5, 6, };

// To get the count of those that are less than four we might write:
int lessThanFourCount = numbers.Where(n => n < 4).Count();

// But this can also be written as:
Func<int, bool> lessThanFour = n => n < 4;

int lessThanFourCount = numbers.Where(lessThanFour).Count();

能否别人给的，他们使用的情况下任何的例子 Func键＆LT;＆GT;

（请注意，我不主张使用 Func键＆LT;＆GT; 方案中的那样简单如上图所示，这只是一个例子，希望使的功能 Func键＆LT;＆GT; 明确）

(Note that I would not advocate using Func<> in a scenario as simple as that shown above, it's just an example that hopefully makes the functionality of Func<> clear.)

推荐答案

我猜只会做这个，如果你将要重用Func键问题在许多地方的一个点（这涉及到多琐碎的逻辑）。否则，使用标准的方式似乎要好得多，完全可读。

I guess there would only be a point in doing this if you were going to be reusing the Func in question in a number of places (and it involved more than trivial logic). Otherwise using the standard way seems much better and perfectly readable.