“="如何发音?用于 .Net 中的 lambda 表达式 [英] How do I pronounce "=>" as used in lambda expressions in .Net

问题描述

我很少遇到其他程序员！

I very rarely meet any other programmers!

当我第一次看到令牌时，我的想法是暗示"，因为这就是它在数学证明中的意思，但这显然不是它的意义.

My thought when I first saw the token was "implies that" since that's what it would read it as in a mathematical proof but that clearly isn't its sense.

那么我如何说或读=>"，如:-

So how do I say or read "=>" as in:-

IEnumerable<Person> Adults = people.Where(p => p.Age > 16)

或者是否有一种约定俗成的表达方式?

Or is there even an agreed way of saying it?

推荐答案

当我读到那个运算符时，我通常会说这样".

I usually say 'such that' when reading that operator.

在您的示例中，p => p.Age > 16 读作P，使得 p.Age 大于 16."

In your example, p => p.Age > 16 reads as "P, such that p.Age is greater than 16."

事实上，我在官方 linq 预发布论坛上问了这个问题，Anders Hejlsberg 回应说

In fact, I asked this very question on the official linq pre-release forums, and Anders Hejlsberg responded by saying

我通常将 => 运算符读作becomes"或for which".例如，
Func f = x => x * 2;
Func test = c => c.City == "London";
读作x 变为 x * 2"和c.City 等于伦敦的 c"

I usually read the => operator as "becomes" or "for which". For example,
Func f = x => x * 2;
Func test = c => c.City == "London";
reads as "x becomes x * 2" and "c for which c.City equals London"

就去"而言 - 这对我来说从来没有意义.p"不会去任何地方.

As far as 'goes to' - that's never made sense to me. 'p' isn't going anywhere.

在给某人阅读代码的情况下，比如说，通过电话，那么只要他们是 C# 程序员，我只会使用lambda"这个词 - 即p lambda p dot age大于十六."

In the case of reading code to someone, say, over the phone, then as long as they're a fellow C# programmer, I'd just use the word 'lambda' - that is, "p lambda p dot age greater-than sixteen."

在评论中，Steve Jessop 在转换的情况下提到了映射到"——所以以安德斯的例子为例:

In comments Steve Jessop mentioned 'maps to' in the case of transformations - so taking Anders' example:

x => x * 2;

会读

x 映射到 x 乘以 2.

x maps to x times 2.

在这种情况下，这似乎更接近于代码的实际意图，而不是变成".

That does seem much closer to the actual intention of the code than 'becomes' for this case.

这篇关于“="如何发音?用于 .Net 中的 lambda 表达式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！