彩带有下降趋势转势走平，出现红色柱子开始拉长趋势向上，买入参考。反之卖出参考
N:=IF(BARSCOUNT(C)>=10,10,BARSCOUNT(C)); STICKLINE(C>=MA(C,N),MA(C,N),MA(C,N*0.7),4,0),colorred; STICKLINE(C<MA(C,N),MA(C,N),MA(C,N*0.7),4,0),colorgreen;
