最常见的是笑脸- - -它看起来像这样：，它由一个冒号和它旁边的一个右括弧组成。

The most common one is the happy face - it looks like this: and it is made with a colon and a right bracket beside it.

youdao

这类宏在被调用时，它(这里指‘…’)被表示成零个或多个符号，包括里面的逗号，一直到到右括弧结束为止。

In the invocation of such a macro, it represents the zero or more tokens until the closing parenthesis that ends the invocation, including any commas.

youdao