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:
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