//交换model
 private void ExchangeModel(ModelBase m1, ModelBase m2)
 {
     //Debug.Log(selectModel.ModelColorComponent.Color+" "+targetModel.ModelColorComponent.Color);
     if (m1.CanMove() && m2.CanMove())
     {
         models[m1.X, m1.Y] = m2;
         models[m2.X, m2.Y] = m1;
         if (step == 0)
         {
             if (MatchModels(m2, m1.X, m1.Y) != null || MatchModels(m1, m2.X, m2.Y) != null || m1.Type == ModelType.RainBow || m2.Type == ModelType.RainBow)
             {
                 int tempX = m1.X;
                 int tempY = m1.Y;
                 m1.ModelMoveComponent.Move(m2.X, m2.Y, fillTime);//交换
                 m2.ModelMoveComponent.Move(tempX, tempY, fillTime);
                 if (m1.Type == ModelType.RainBow && m1.CanClear() && m2.CanClear())
                 {
                     ModelColorClearByType mcct = m1.transform.GetComponent <ModelColorClearByType>();
                     //Debug.Log(mcct == null);
                     if (mcct != null)
                     {
                         mcct.Color = m2.ModelColorComponent.Color;
                         ClearByType(mcct.Color);
                     }
                     m1.ModelClearComponent.Clear();
                     models[m1.X, m1.Y] = CreatNewModel(m1.X, m1.Y, ModelType.Empty);
                     ClearModel(m1.X, m1.Y);
                     //StartCoroutine(FillAll(fillTime));//将消除后的空位进行填充
                 }
                 if (m2.Type == ModelType.RainBow && m2.CanClear() && m1.CanClear())
                 {
                     ModelColorClearByType mcct = m2.transform.GetComponent <ModelColorClearByType>();
                     //Debug.Log(mcct == null);
                     if (mcct != null)
                     {
                         mcct.Color = m1.ModelColorComponent.Color;
                         ClearByType(mcct.Color);
                     }
                     m2.ModelClearComponent.Clear();
                     models[m2.X, m2.Y] = CreatNewModel(m2.X, m2.Y, ModelType.Empty);
                     ClearModel(m2.X, m2.Y);
                     //StartCoroutine(FillAll(time));//将消除后的空位进行填充
                 }
                 ClearAllMatchModels();             //清除所有匹配的model
                 StartCoroutine(FillAll(fillTime)); //将消除后的空位进行填充
                 selectModel  = null;
                 targetModel  = null;
                 step         = 0;
                 curStep.text = "0";
             }
             else
             {
                 int tempX = m1.X;
                 int tempY = m1.Y;
                 m1.ModelMoveComponent.Move(m2.X, m2.Y, fillTime);//交换
                 m2.ModelMoveComponent.Move(tempX, tempY, fillTime);
                 step++;
                 targetModel  = null;
                 curStep.text = "1";
             }
         }
         else
         {
             if (MatchModels(m2, m1.X, m1.Y) != null || MatchModels(m1, m2.X, m2.Y) != null || m1.Type == ModelType.RainBow || m2.Type == ModelType.RainBow)
             {
                 int tempX = m1.X;
                 int tempY = m1.Y;
                 m1.ModelMoveComponent.Move(m2.X, m2.Y, fillTime);//交换
                 m2.ModelMoveComponent.Move(tempX, tempY, fillTime);
                 if (m1.Type == ModelType.RainBow && m1.CanClear() && m2.CanClear())
                 {
                     ModelColorClearByType mcct = m1.transform.GetComponent <ModelColorClearByType>();
                     //Debug.Log(mcct == null);
                     if (mcct != null)
                     {
                         mcct.Color = m2.ModelColorComponent.Color;
                         ClearByType(mcct.Color);
                     }
                     m1.ModelClearComponent.Clear();
                     models[m1.X, m1.Y] = CreatNewModel(m1.X, m1.Y, ModelType.Empty);
                     ClearModel(m1.X, m1.Y);
                     //StartCoroutine(FillAll(fillTime));//将消除后的空位进行填充
                 }
                 if (m2.Type == ModelType.RainBow && m2.CanClear() && m1.CanClear())
                 {
                     ModelColorClearByType mcct = m2.transform.GetComponent <ModelColorClearByType>();
                     //Debug.Log(mcct == null);
                     if (mcct != null)
                     {
                         mcct.Color = m1.ModelColorComponent.Color;
                         ClearByType(mcct.Color);
                     }
                     m2.ModelClearComponent.Clear();
                     models[m2.X, m2.Y] = CreatNewModel(m2.X, m2.Y, ModelType.Empty);
                     ClearModel(m2.X, m2.Y);
                     //StartCoroutine(FillAll(time));//将消除后的空位进行填充
                 }
                 ClearAllMatchModels();             //清除所有匹配的model
                 StartCoroutine(FillAll(fillTime)); //将消除后的空位进行填充
                 selectModel  = null;
                 targetModel  = null;
                 step         = 0;
                 curStep.text = "0";
             }
             else
             {
                 //还原基础脚本
                 models[m1.X, m1.Y] = m1;
                 models[m2.X, m2.Y] = m2;
                 models[m1.X, m1.Y].ModelMoveComponent.Undo(m1, m2, fillTime);//交换位置再还原
                 step         = 1;
                 curStep.text = "1";
             }
         }
     }
     //StartCoroutine(FillAll(fillTime));//将消除后的空位进行填充
 }