unity摄像机各种控制源代码，分别有自动控制摄像机绕物体旋转，鼠标控制摄像机转动，手动控制摄像机绕物体旋转可调节远近，手动控制摄像机绕物体旋转-unity camera control source code were automatically control the camera rotating around the object, the mouse to control the camera rotates manually control the camera around the object rotating adjustable distance, manual control of the camera around the object rotation