5 Struct结构体是一个自定义的数据类型，允许你把一些相关的数据组合打包到一起，组成一个有意义的组。
define123456struct User { username: String, email: String, sign_in_count: u64, active: bool,}
instance123456let user1 = User{ us...
ownership
chapter 4 ownership4.1 what is ownershipownership rule
Each value in Rust has a variable that’s called its owner.
There can only be one owner at a time.
When the owner goes out of scope, the value...
基本概念
chapter 3 concepts3.1 Variables 变量
mutable and immutable
variables and constants
shadowing
3.2 Data Types 数据类型
scalar 标量integer: i8/i16/i32/i64/i128 u*float-point: f32/f64bool: true/falsecharacte...
'环境'
安装目录all tools are installed to the ~/.cargo/bin directoryinclude this directory in PATH environment variable
升级rustup update
切换nightly版本123rustup install nightly # 安装nightly版本rustup default nightly...