1.首先给物体添加NavMeshAgent导航组件

2.给物体添加脚本,内容如下:

private NavMeshAgent nav;

    void Start()
    {
        nav = GetComponent<NavMeshAgent>();
    }

    void Update()
    {
        if (Input.GetMouseButton(0))
        {
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            RaycastHit hitInfo;
            if (Physics.Raycast(ray, out hitInfo))
            {
                nav.SetDestination(hitInfo.point);
            }
        }
    }