Rust解構結構

析構結構 - structs

同樣，一個結構可以解構如圖所示：

fn main() {
struct Foo { x: (u32, u32), y: u32 }

// destructure members of the struct
let foo = Foo { x: (1, 2), y: 3 };
let Foo { x: (a, b), y } = foo;

println!("a = {}, b = {},  y = {} ", a, b, y);

// you can destructure structs and rename the variables,
// the order is not important

let Foo { y: i, x: j } = foo;
println!("i = {:?}, j = {:?}", i, j);

// and you can also ignore some variables:
let Foo { y, .. } = foo;
println!("y = {}", y);

// this will give an error: pattern does not mention field \`x\`
// let Foo { y } = foo;

}

也可以看看：

結構體, 引用模式