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546b202e
编写于
6月 26, 2014
作者:
S
Steve Klabnik
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Note that macros != templates
Good call, @chris-morgan and @cmr!
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@@ -200,7 +200,10 @@ The second point is the `println!()` part. This is calling a Rust **macro**,
which is how metaprogramming is done in Rust. If it were a function instead, it
would look like this:
`println()`
. For our purposes, we don't need to worry
about this difference. Just know that sometimes, you'll see a
`!`
, and that
means that you're calling a macro instead of a normal function.
means that you're calling a macro instead of a normal function. One last thing
to mention: Rust's macros are significantly different than C++ templates, if
you've used those. Don't be scared of using macros. We'll get to the details
eventually, you'll just have to trust us for now.
Next,
`"Hello, world"`
is a
**string**
. Strings are a surprisingly complicated
topic in a systems programming language, and this is a
**statically allocated**
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