为什么在这里使用@符号? [英] Why do we use @ symbol here?

问题描述

为什么在下面的语句中使用@符号....
我们在哪里可以使用这种类型的语句.....

Why @ symbol is used in the following statement....
Where can we use this type of statements.....

string[] @params = null;

推荐答案

@符号允许您使用保留字.例如:

The @ symbol allows you to use reserved word. For example:

int @class = 15;

上面的作品，而下面的作品则不行:

The above works, when the below wouldn''t:

int class = 15;

前缀"@"允许将关键字用作标识符 [

The prefix "@" enables the use of keywords as identifiers[^], which is useful when interfacing with other programming languages. The character @ is not actually part of the identifier, so the identifier might be seen in other languages as a normal identifier, without the prefix. An identifier with an @ prefix is called a verbatim identifier.

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