在Unity3d中为多个级别创建一个加载场景

I have a problem with loading scene. I've create a loading scene, and then when the it's finished, it loads another level, that's the concept, right? Now, the problem is that if I have so many scenes to load, do I have to create so many loadings scenes, too? I wonder if there are some ways so that when I load another level I still do it through the first loading scene, so I don't have to create so many loading scenes.I have a problem with loading scene. I've creat