trpl-zh-cn/listings/ch05-using-structs-to-structure-related-data/no-listing-01-tuple-structs/src/main.rs

struct Color(i32, i32, i32);
struct Point(i32, i32, i32);

fn main() {
    let black = Color(0, 0, 0);
    let origin = Point(0, 0, 0);
}