MACD Green column buy Red column sell Histogram Strategy

This strategy builds upon the official built-in MACD indicator logic from TradingView.
Buy Condition:
When the MACD Histogram turns from negative to positive (from red bars to green bars), it triggers strategy.entry('MACD_Buy', strategy.long), executing a buy operation.
Sell Condition:
When the MACD Histogram turns from positive to negative (from green bars to red bars), it triggers strategy.close('MACD_Buy'), executing a sell operation.
Plotting remains unchanged:
Green and red bars are displayed correctly, and both the MACD and signal lines are plotted as usual.
This strategy is not intended for real trading.
It is for educational and demonstration purposes only. It should not be considered financial advice, and I take no responsibility for any trading outcomes resulting from its use.
此策略基于 TradingView 官方内置的 MACD 指标逻辑。
买入条件：
当 MACD 柱状图由负转正（从红柱变为绿柱）时，触发strategy.entry('MACD_Buy',strategy.long) 执行买入操作。

卖出条件：
当 MACD 柱状图由正转负（从绿柱变为红柱）时，触发strategy.close('MACD_Buy') 执行卖出操作。

绘图保持不变：
绿柱和红柱均正确显示，MACD 线和信号线均按常规绘制。

此策略不适用于实盘交易。
仅供教育和演示之用。不应将其视为金融建议，本人对使用此策略导致的任何交易结果概不负责。