A CharacterController allows you to easily do movement constrained by collisions without having to deal with a rigidbody.
角色控制器允许你在受制于碰撞的情况下很容易的进行运动,而不用处理刚体。
A CharacterController is not affected by forces and will only move when you call the Move funtion. It will then carry out the movement but be constrained by collisions.