Unity3D鼠标坐标转世界坐标和局部坐标

鼠标坐标转世界坐标和局部坐标：
Vector3 MousePosition2Local () {
mousePosition = Input.mousePosition; //获取屏幕坐标
mouseWorldPos = Camera.main.ScreenToWorldPoint (mousePosition); //屏幕坐标转世界坐标
mouseLocalPos = transform.parent.transform.InverseTransformPoint (mouseWorldPos); //世界坐标转本地坐标

return CorrectPos(mouseLocalPos);
}