对象初始值设定项+属性初始值设定项(从C#到F#) [英] Object initializer + property initializer (from C# to F#)

问题描述

我有一个Person，我想使用属性初始值设定项来初始化Name，并使用构造函数来初始化Age.

I have a Person and I want initialize the Name with the property initializer and the Age with the constructor.

C#版本

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

    public Person(int age)
    {
        Age = age
    }
}

var person = new Person(20) { Name = "Alex" };

我尝试过使用F#:

尝试1:无效的语法

type Person = {
    Name: string
    Age: int
} with 
    static member create (age: int): Person =
        { this with Age = age }: Person

尝试2:无效的语法

type Person =
    member val Name: string
    member val Age: int

    new(age: int)
        this.Age = 13

推荐答案

应该简单

type Person(age:int) =
    member val Name = "" with get, set
    member val Age = age with get, set

let person = Person(20, Name = "Alex")

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