Params
 Numeric FastLength(12);
 Numeric SlowLength(26);
 Numeric MACDLength(9);
    Numeric KVOL(0);
Vars
 //此处添加变量
    Series<Numeric> MACDDiff;
    Series<Numeric> MACDDEA; 
 Series<Numeric> MACDValue;
 Series<Numeric> ATR;
 Series<Numeric> HH;
 Series<Numeric> LL;
 Series<Numeric> WHH;
 Series<Numeric> WHHH;
 Series<Numeric> AHH;
 Series<Numeric> BHH;
 Series<Numeric> WLL;
 Series<Numeric> WLLL;
 
Defs
 //此处添加公式函数
 
Events
 //此处实现事件函数
 
 //初始化事件函数，策略运行期间，首先运行且只有一次
 OnInit()
 {
  
 }

 //Bar更新事件函数，参数indexs表示变化的数据源图层ID数组
 OnBar(ArrayRef<Integer> indexs)
 {
  
  ATR=AvgTrueRange(26);                                                       //真实波幅ATR
  MACDDiff = XAverage( Close, FastLength ) - XAverage( Close, SlowLength ) ; //快线 DIFF
  MACDDEA = XAverage(MACDDiff,MACDLength);                                    //慢线   DEA
  MACDValue = MACDDiff - MACDDEA;                                             //      MACD
       
       if(CrossOver(MACDDiff,MACDDEA))                                        //条件：当MACD快线上穿慢线
                 {
                     WHH=High;                                                      //取最高值
                     LL=WLL[1];
                                                                         

                                    //
                  }Else
          
                {
                   WHH=Max(WHH,High);                                            //
                 }
          
          if(CrossUnder(MACDDiff,MACDDEA))
                  {
                     WLL=Low;
                     HH=WHH[1];   
                     WHHH = WHH;
                  }Else
          
                {
                    WLL=Min(WLL,Low);  
                 }
                
               PlotNumeric("WHHH",WHHH);   
           if(CrossOver(Close,WHHH))                                        
                 {    
                    AHH = WHHH+30;
                  }
           if(CrossOver(Close,AHH))                                        
                 {    
                    BHH = AHH+30;
                  }  
           PlotNumeric("WHHH",WHHH);          
           PlotNumeric("AHH",AHH);                   
           PlotNumeric("BHH",BHH);       
    }

请教：当close上穿BHH时 又增加一条线：BHH+30，如此类推无限循环应该怎么写？？？？？？？？？