如果匿名类型对象不可枚举,它如何转换为字符串？

const obj = { name: 'John', age: 25 };
const str = JSON.stringify(obj);
console.log(str); // '{"name":"John","age":25}'

obj = {'name': 'John', 'age': 25}
str_obj = str(obj)
print(str_obj)  # '{"name": "John", "age": 25}'

public class Person {
    private String name;
    private int age;

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

public class Person {
    public string Name { get; set; }
    public int Age { get; set; }

    public override string ToString() {
        return $"{Name}: {Age}";
    }
}