在C＃变量名前面放置一个@？(What does placing a @ in front of a C# variable name do? [duplicate])

在C＃变量名前面放置一个@？(What does placing a @ in front of a C# variable name do? [duplicate])

这个问题已经在这里有一个答案：

C＃中变量名称中的@字符的用途/含义是什么？ 9个答案

我一直在使用一些C＃的遗留代码，我在变量名前面看到很多@符号。 这意味着什么？

目前，我在变量前面看到很多没有保留的通用名称。 例如：

MyProcedure(@step.LoadInstanceId, @step.ResultCode, @step.StatusCode);

鉴于这一步不是一个保留词，有没有理由应该逃避？

This question already has an answer here:

What's the use/meaning of the @ character in variable names in C#? 9 answers

I've been working with some C# legacy code and I've been seeing a lot of @ symbols in front of variable names. What does this signify or do?

Currently I'm seeing it a lot in front of variables with common names that aren't reserved. E.g.:

MyProcedure(@step.LoadInstanceId, @step.ResultCode, @step.StatusCode);

Given that step isn't a reserved word, is there any reason that they should be escaped?

最满意答案

这只是一种允许将保留关键字声明为var的方法。

void Foo(int @string)

It's just a way to allow declaring reserved keywords as vars.

void Foo(int @string)