car/assets/script/ui/home/home_car.ts

import { _decorator, Component, Node, Sprite } from 'cc';
import { GameManager } from '../../GameManager';
const { ccclass, property } = _decorator;

@ccclass('home_car')
export class home_car extends Component {
    @property(Node) spr_car:Node = null
    updateCar(){
        this.spr_car.getComponent(Sprite).spriteFrame = GameManager.getUserDefaultCarSf()
    }
}