About the camera control script

can you implement an example: hold down the middle mouse button to move, scroll the mouse wheel to zoom, hold down the right mouse button to rotate the view, similar to the Unity editor Scene

You’d have to implement those controls yourself. You can copy the CesiumCameraController script and replace the built-in move controls with your own.

Thank you for your answer,There is another question, it seems that you only have quick start, is there any link for Scripting API to help me learn the function of each script

You can look at the files in the package itself – we have comments that document all public API. We’re aware that this documentation is not easily found, and we have an issue to track that. More obvious documentation for users · Issue #273 · CesiumGS/cesium-unity · GitHub