javascript - 在JavaScript类中调用父方法

没什么，我是新手，很高兴加入这个伟大的社区。问题是，我有一个名为Character的JavaScript类，如下所示:

var Character = function()

{

    // ..Some previous Properties / Methods (included one called "StareDown()")..

    // And this method:

    this.GrabDown = function()

    {
        Context.clearRect(0, 0, CanvasWidth, CanvasHeight);
        //Context.fillRect(0, 0, CanvasWidth, CanvasHeight);
        Context.drawImage(this.GrabbingDown, CharacterX, CharacterY, SpriteWidth, SpriteHeight);

        window.setTimeout
        (
            function()

            {
                // Here is where I want to call the parent class method "StareDown()", but I don't know how.
            },
            250
        );
    }
}

所以这是我的大问题，如何通过该子匿名函数访问父方法？我一直想弄清楚整个晚上，但是找不到一些有用的信息，谢谢!

最佳答案

您需要将父对象的this对象存储在变量中(假设您已将函数定义为this.StareDown = function () {...}

var Character = function()

{

    // ..Some previous Properties / Methods (included one called "StareDown()")..
    this.StareDown = function() {...}

    var curCharacter = this;

    this.GrabDown = function()

    {
        Context.clearRect(0, 0, CanvasWidth, CanvasHeight);
        //Context.fillRect(0, 0, CanvasWidth, CanvasHeight);
        Context.drawImage(this.GrabbingDown, CharacterX, CharacterY, SpriteWidth, SpriteHeight);

        window.setTimeout
        (
            function()

            {
                // Here is where I want to call the parent class method "StareDown()", but I don't know how.
                curCharacter.StareDown(...);
            },
            250
        );
    }
}