Cargo.toml：

x
[dependencies]
serde = { version = "1.0.130", features = ["derive"] }
serde_json = "1.0"
serde_yaml = "0.9.13"

src/main.rs：

xxxxxxxxxx
use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
struct Config {
    one: i32,
    two: Vec<String>,
    three: TestEnum,
}

#[derive(Debug, Serialize, Deserialize)]
enum TestEnum {
    One(i32),
    Two(String),
}

fn main() {
    let yaml_string = r#"
---
one: 1
two:
  - this is the first element
  - this is the second element
three: !Two this is two in TestEnum
    "#;
    let config = serde_yaml::from_str::<Config>(&yaml_string).unwrap();
    println!("{:#?}", config);
    println!("{:?}", config.three)
}

输出：

x
Config {
    one: 1,
    two: [
        "this is the first element",
        "this is the second element",
    ],
    three: Two(
        "this is two in TestEnum",
    ),
}
Two("this is two in TestEnum")