交叉和交叉功能不尊重我给松树脚本的参数

Question

我试图在随机时添加一个简单的背景颜色，当 k 高于 80 时，k 在任何时候都超过 d，并且当 k 低于 20 时，k 在任何时候都低于 d。

然而，在这种情况下，我不断收到交叉和交叉信号。在这种情况下，图片中根本没有交叉。

谁能帮我解释一下为什么会这样？

谢谢

//@version=4
study(title="Stochastic RSI", shorttitle="Stoch RSI", format=format.price, precision=2, resolution="")
smoothK = input(3, "K", minval=1)
smoothD = input(3, "D", minval=1)
lengthRSI = input(14, "RSI Length", minval=1)
lengthStoch = input(14, "Stochastic Length", minval=1)
cross = input(false, "Highlight Only Crosses in Ob & Os Areas")
src = input(close, title="RSI Source")
rsi1 = rsi(src, lengthRSI)
k = sma(stoch(rsi1, rsi1, rsi1, lengthStoch), smoothK)
d = sma(k, smoothD)
plot(k, "K", color=#0094FF)
plot(d, "D", color=#FF6A00)
h0 = hline(80, "Upper Band", color=#606060)
h1 = hline(20, "Lower Band", color=#606060)
fill(h0, h1, color=#9915FF, transp=80, title="Background")

col_ = (k > 80 and crossover(k, d)) or (k < 20 and crossunder(k, d))
         ? na
     : crossunder(k, d)
         ? #d7000080
     : crossover(k, d)
         ? #00d70080
     : na

bgcolor(col_)

Answer 1

//@version=4
study(title="Help (Stochastic RSI)", shorttitle="Stoch RSI", format=format.price, precision=2, resolution="")
smoothK = input(3, "K", minval=1)
smoothD = input(3, "D", minval=1)
lengthRSI = input(14, "RSI Length", minval=1)
lengthStoch = input(14, "Stochastic Length", minval=1)
cross = input(false, "Highlight Only Crosses in Ob & Os Areas")
src = input(close, title="RSI Source")
rsi1 = rsi(src, lengthRSI)
k = sma(stoch(rsi1, rsi1, rsi1, lengthStoch), smoothK)
d = sma(k, smoothD)
plot(k, "K", color=#0094FF)
plot(d, "D", color=#FF6A00)
h0 = hline(80, "Upper Band", color=#606060)
h1 = hline(20, "Lower Band", color=#606060)
fill(h0, h1, color=#9915FF, transp=80, title="Background")

//col_ = (k > 20 and crossover(d, k)) ? #d7000080 : ((k < 80 and crossunder(d, k)) ? #00d70080 : na)
col_ = (k > 20 and k[1]<d[1] and k[0]>d[0]) ? #d7000080 : ((k < 80 and k[1]>d[1] and k[0]<d[0]) ? #00d70080 : na)

bgcolor(col_)