Rust 程序设计语言 简体中文版 1.85.0关键字和结构体名开头并后跟元组中的类型。例如,下面是两 个分别叫做 Color 和 Point 元组结构体的定义和用法: 文件名:src/main.rs struct Color(i32, i32, i32); struct Point(i32, i32, i32); fn main() { let black = Color(0, 0, 0); let origin = Point(0 0, 0); } 注意 black 和 origin 值的类型不同,因为它们是不同的元组结构体的实例。你定义的每一个 结构体有其自己的类型,即使结构体中的字段可能有着相同的类型。例如,一个获取 Color 类 型参数的函数不能接受 Point 作为参数,即便这两个类型都由三个 i32 值组成。除此之外, 元组结构体实例类似于元组,你可以将它们解构为单独的部分,也可以使用 . 后跟索引来访问 单独的 会成为这些值的所有者,如示例 8-22 所示: use std::collections::HashMap; let field_name = String::from("Favorite color"); let field_value = String::from("Blue"); let mut map = HashMap::new(); map.insert(field_name0 码力 | 562 页 | 3.23 MB | 1 月前3
The Servo Book - 0.0.1Git: Servo’s main repo is pretty big! If you have an unreliable network connection or limited disk space, consider making a shallow clone. $ git clone https://github.com/servo/servo.git $ cd servoRunning installation of the required Python version, then uv will just symlink to that installation to save disk space. If the versions do not match or no Python installation is present on the host, then uv will download target directory, target/lsp , in order to avoid unwanted rebuilds. If you would like to save disk space you can remove the - -target-dir and target/lsp arguments and the default target directory will0 码力 | 107 页 | 2.48 MB | 3 天前3
共 2 条
- 1













