如何在具有变量键名称的json对象上使用serde json

[dependencies]
serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0"

use serde_json::{json, Value};

fn main() {
    // 创建具有变量键名称的JSON对象
    let json_str = r#"{
        "name": "John",
        "age": 30,
        "address": {
            "street": "123 Main St",
            "city": "New York"
        }
    }"#;

    // 将JSON字符串解析为serde_json::Value
    let json: Value = serde_json::from_str(json_str).unwrap();

    // 使用serde_json::Value访问对象的属性
    let name = &json["name"];
    let age = &json["age"];
    let street = &json["address"]["street"];
    let city = &json["address"]["city"];

    // 打印属性值
    println!("Name: {}", name);
    println!("Age: {}", age);
    println!("Street: {}", street);
    println!("City: {}", city);
}