Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
实例变量在切换场景时会保留数据吗
实例变量保存在具体的实例上，大多数对象是非全局对象，非全局对象的实例在切换场景时会被销毁，被销毁的话实例变量自然跟着没有了