Pine Script 实现全看多信号触发后背景持绿至全看空信号触发问题

你需要新增一个带状态记忆的变量控制背景色，仅在满足全绿、全红的临界条件时才切换背景，其余时间保持上一轮的背景状态即可。

修改核心逻辑 #

• 保留原有bull（8个圆点全绿）、bear（8个圆点全红）的判断条件，作为背景切换的唯一触发阈值
• 用var关键字声明背景色变量，该关键字修饰的变量会在K线刷新时保留上一轮的赋值，不会被自动重置
• 背景色仅在bull触发时切换为绿色、bear触发时切换为红色，其余混合状态下保持原有值不变

修改后完整代码 #

bull = (ha_diff==2 and ha_diff2==2 and ha_diff3==2 and ha_diff4==2 and ha_diff5==2 and ha_diff6==2 and ha_diff7==2 and ha_diff8==2 )
bear = (ha_diff==1 and ha_diff2==1 and ha_diff3==1 and ha_diff4==1 and ha_diff5==1 and ha_diff6==1  and ha_diff7==1 and ha_diff8==1 )

plot(15, title="TF1", color=iff(ha_diff==1, red, iff(ha_diff==2, green, white)), style=circles, linewidth=5, join=true)
plot(14, title="TF2", color=iff(ha_diff2==1, red, iff(ha_diff2==2, green, white)), style=circles, linewidth=5, join=true)
plot(13, title="TF3", color=iff(ha_diff3==1, red, iff(ha_diff3==2, green, white)), style=circles, linewidth=5, join=true)
plot(12, title="TF4", color=iff(ha_diff4==1, red, iff(ha_diff4==2, green, white)), style=circles, linewidth=5, join=true)
plot(11, title="TF5", color=iff(ha_diff5==1, red, iff(ha_diff5==2, green, white)), style=circles, linewidth=5, join=true)
plot(10, title="TF6", color=iff(ha_diff6==1, red, iff(ha_diff6==2, green, white)), style=circles, linewidth=5, join=true)
plot(9, title="TF7", color=iff(ha_diff7==1, red, iff(ha_diff7==2, green, white)), style=circles, linewidth=5, join=true)
plot(8, title="TF8", color=iff(ha_diff8==1, red, iff(ha_diff8==2, green, white)), style=circles, linewidth=5, join=true)

// 带状态记忆的背景色变量，初始默认设为红色，可根据需求调整初始值
var color backgroundColour = red
// 仅全绿/全红时切换状态，其余时间保持上一轮值
backgroundColour := bull ? green : bear ? red : backgroundColour

bgcolor(color=backgroundColour, transp=40,
     title="Conditionally coloured background")

验证说明 #

修改后逻辑完全匹配需求：

1. 8个圆点首次全部变绿时，背景立刻切换为绿色
2. 绿色背景生效期间，部分圆点变红不会触发背景切换，直到8个圆点全部变红才会切为红色背景
3. 红色背景生效期间同理，仅当8个圆点再次全部变绿时才切回绿色

内容的提问来源于stack exchange，提问作者Thierry Verhaegen