rustup
rustup 是一个 rust 开发环境管理工具，可用于在不同的 rust 版本切换，指定目标平台等。
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| # 安装
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
rustup show
rustup man cargo
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打包为无需依赖 libc 的 fully static binaries：
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| rustup target add x86_64-unknown-linux-musl
cargo build --target x86_64-unknown-linux-musl --release
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打印结构体
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| #[derive(Debug)]
struct User {
username: String,
email: String,
sign_in_count: u64,
active: bool,
}
fn main() {
let user1 = User {
email: String::from("someone@example.com"),
username: String::from("someusername123"),
active: true,
sign_in_count: 1,
};
let user2 = User {
email: user1.email.clone(),
username: String::from("anotherusername567"),
active: user1.active,
sign_in_count: user1.sign_in_count,
};
println!("{:?}", user1);
println!("{:?}", user2);
}
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