这是 Crystal 语言的参考文档。目录
Crystal 语言的设计目标如下：
- 语法与Ruby类似（但兼容性不是目标）。
- 静态类型检查，但不需要显式指定变量或参数类型。
- 可在Crystal内通过代码绑定调用C代码。
- 编译期进行代码评估和生成，避免了样板式的代码。
- 可编译为高效的本地机器码。
欢迎提交 pull request ：
https://github.com/chinazhangchao/crystal-book-zh_CN
一起来翻译吧^_^！QQ交流群号：823109001。
鉴于gitbook 命令行版已经失去维护，我们可以用 mdbook 进行预览。
$ mdbook serve
应该能看到
2022-10-07 22:06:15 [WARN] (mdbook::book): It appears you are still using book.json for configuration.
2022-10-07 22:06:15 [WARN] (mdbook::book): This format is no longer used, so you should migrate to the
2022-10-07 22:06:15 [WARN] (mdbook::book): book.toml format.
2022-10-07 22:06:15 [WARN] (mdbook::book): Check the user guide for migration information:
2022-10-07 22:06:15 [WARN] (mdbook::book): https://rust-lang.github.io/mdBook/format/config.html
2022-10-07 22:06:16 [INFO] (mdbook::book): Book building has started
2022-10-07 22:06:16 [INFO] (mdbook::book): Running the html backend
2022-10-07 22:06:28 [INFO] (mdbook::cmd::serve): Serving on: http:https://localhost:3000
2022-10-07 22:06:28 [INFO] (warp::server): Server::run; addr=[::1]:3000
2022-10-07 22:06:28 [INFO] (warp::server): listening on http:https://[::1]:3000
$ git clone https://github.com/chinazhangchao/crystal-book-zh_CN.git
$ cd crystal-book
$ npm install -g [email protected]
$ gitbook install
$ gitbook serve
Live reload server started on port: 35729
Press CTRL+C to quit ...
info: 8 plugins are installed
info: loading plugin "ga"... OK
...
Starting server ...
Serving book on http:https://localhost:4000
或者通过docker方式：
$ docker-compose up
...
gitbook_1 | Starting server ...
gitbook_1 | Serving book on http:https://localhost:4000
gitbook_1 | Restart after change in file node_modules/.bin
...