如何在Pine Script策略脚本中添加可选择买卖的TradingView警报

问题描述 #

我想在自己的Pine Script策略脚本中添加「买入」和「卖出」警报，让用户能在TradingView警报窗口中选择触发买入或卖出警报。由于警报消息区要用来给3commas机器人发送指令，不能占用这个区域，请问能不能在TradingView警报弹窗里设置显示买卖选项且不使用消息区（如图所示）？

当前策略代码 #

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © Hawkreign

//@version=5
strategy(title="SGA Alert", overlay=true, default_qty_type = strategy.cash, default_qty_value = 100)

// Input options
src = input.source(close, title = "SGA" )

// Long and Short Conditions on the SGA
long = ta.rising(src, 1)
short = ta.falling(src, 1)

// Long and Short Memory
longmem = false
shortmem = false

// Memory Conditions
longmem := long ? true : short ? false : longmem[1]
shortmem := short ? true : long ? false : shortmem[1]

// Entry and Exit Variables
buy = long and not (longmem[1])
sell = short and not (shortmem[1])

// Long and Short Background color
bgcolor(buy ? color(color.rgb(11, 238, 18)): na)
bgcolor(sell ? color(color.rgb(134, 7, 7)): na)

// Long Entry and Exit
if (buy)
    strategy.entry("buy", strategy.long)
    strategy.close("sell")

// Short Entry and Exit
if (sell)
    strategy.entry("sell", strategy.short)
    strategy.close("buy")

plot(src)

解决方案 #

完全可以实现，通过给买入、卖出信号注册独立的警报条件，就能在TradingView警报窗口的「条件」下拉菜单中直接选择触发类型，消息区可以完全留给3commas的指令使用。

修改后的代码 #

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © Hawkreign

//@version=5
strategy(title="SGA Alert", overlay=true, default_qty_type = strategy.cash, default_qty_value = 100)

// Input options
src = input.source(close, title = "SGA" )

// Long and Short Conditions on the SGA
long = ta.rising(src, 1)
short = ta.falling(src, 1)

// Long and Short Memory
longmem = false
shortmem = false

// Memory Conditions
longmem := long ? true : short ? false : longmem[1]
shortmem := short ? true : long ? false : shortmem[1]

// Entry and Exit Variables
buy = long and not (longmem[1])
sell = short and not (shortmem[1])

// 注册买入/卖出警报条件，用于TradingView警报窗口的条件选择
alertcondition(buy, title="买入信号", message="")  // 消息留空，不占用消息区
alertcondition(sell, title="卖出信号", message="")

// Long and Short Background color
bgcolor(buy ? color(color.rgb(11, 238, 18)): na)
bgcolor(sell ? color(color.rgb(134, 7, 7)): na)

// Long Entry and Exit
if (buy)
    strategy.entry("buy", strategy.long)
    strategy.close("sell")

// Short Entry and Exit
if (sell)
    strategy.entry("sell", strategy.short)
    strategy.close("buy")

plot(src)

使用步骤 #

1. 将修改后的代码替换原有脚本并保存
2. 打开TradingView的警报设置窗口
3. 在「条件」下拉菜单中，选择「SGA Alert: 买入信号」或「SGA Alert: 卖出信号」
4. 在「消息」栏直接填写3commas机器人所需的指令字符串
5. 设置好其他警报参数（触发频率、通知方式等）后保存即可

内容的提问来源于stack exchange，提问作者HuskyReign