如何在不拖放序列化引用的情况下在脚本中激活子对象？

class ParentObject {
    constructor() {
        this.childObjects = [];
    }

    addChild(child) {
        this.childObjects.push(child);
    }

    activateChild(childName) {
        const child = this.childObjects.find(c => c.name === childName);
        if (child && !child.isActive) {
            child.activate();
        }
    }
}

class ChildObject {
    constructor(name) {
        this.name = name;
        this.isActive = false;
    }

    activate() {
        this.isActive = true;
        console.log(`${this.name} is now active.`);
    }
}

// 使用示例
const parent = new ParentObject();
const child1 = new ChildObject('Child1');
const child2 = new ChildObject('Child2');

parent.addChild(child1);
parent.addChild(child2);

parent.activateChild('Child1'); // 输出: Child1 is now active.