请教一下无限循环

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？？？？？？？？？