idiom#8 构造map

Initialize a new map (associative array)

Python

x = {"one" : 1, "two" : 2}

Rust

#![allow(unused)]
fn main() {
use std::collections::HashMap;

let x: HashMap<&str, i32> = [
    ("one", 1),
    ("two", 2),
].into_iter().collect();


use std::collections::BTreeMap;

let mut x = BTreeMap::new();
x.insert("one", 1);
x.insert("two", 2);


}

Elixir

x = %{"one" => 1, "two" => 2}

x = %{one: 1, two: 2}

Humm?

和 Python 基本相似; 不过, Rust 明显有更多内建模块支持各种姿势的嗯哼...

• HashMap in std::collections - Rust
• BTreeMap in std::collections - Rust
• ...

          _~∽~∽~_
      \/ /  = ◴  \ \/
        '_   ⎵   _'
        ( '-----' )

...act by ferris-actor v0.2.4 (built on 23.0303.201916)