trpl-zh-cn/listings/ch06-enums-and-pattern-matching/no-listing-03-variants-with-different-data/src/main.rs

fn main() {
    // ANCHOR: here
    enum IpAddr {
        V4(u8, u8, u8, u8),
        V6(String),
    }

    let home = IpAddr::V4(127, 0, 0, 1);

    let loopback = IpAddr::V6(String::from("::1"));
    // ANCHOR_END: here
}