在Rust中反序列化字符串的key=value列表的最佳方法

[dependencies]
serde = "1.0"
serde_derive = "1.0"

use serde::{Deserialize, Serialize};

#[derive(Debug, Deserialize, Serialize)]
struct KeyValue {
    key: String,
    value: String,
}

use serde_json;

fn main() {
    let json_str = r#"
        [
            {"key": "name", "value": "John"},
            {"key": "age", "value": "30"},
            {"key": "city", "value": "New York"}
        ]
    "#;

    let key_values: Vec<KeyValue> = serde_json::from_str(json_str).unwrap();

    for kv in key_values {
        println!("Key: {}, Value: {}", kv.key, kv.value);
    }
}