How do I add model code to it?

[lz111110]

我正在创建一个项目，但我不知道如何编写代码（我是新手）。在这里，我要使我写的地形在地图上可见。在这里，我不知道如何向其中添加模型。我只是希望它成为湖的形式出现在地图上。请帮助我，谢谢。希望您能从Google Translate了解

 

[lz111110]

Can you see English? ?

 

[lz111110]

I am creating a project, but I don't know how to write code (I am a novice). Here, I want to make the terrain I wrote visible on the map. Here, I don't know how to add models to it. I just want it to appear on the map in the form of a lake. Please help me, thanks.