書(shū)名： Rust Essentials（Second Edition）
作者名： Ivo Balbaert
本章字?jǐn)?shù)： 121字
更新時(shí)間： 2021-07-02 15:30:38

Consulting Rust documentation

The quickest way to find more detailed information about a Rust topic is to browse to the documentation screen of the Standard Library, http://doc.rust-lang.org/std/.

On the left, you can find a listing of all crates available, which you can browse for more details. But most useful is the search box at the top: type in a few letters or a word to get a number of useful references.

Exercises:
Try to change the value of a constant. Of course this is not allowed, what error do you get? (For an example see Chapter2/exercises/change_constant.rs) .
Look up the println! macro in the documentation.
Read the fmt specification and write a program that will print value 3.2f32 as +003.20 (see Chapter2/exercises/formatting.rs ).

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Rust Essentials（Second Edition）

Consulting Rust documentation