MACD

//@version=5
indicator(title="MACD金、死叉提示", shorttitle="MACD", timeframe="", timeframe_gaps=true)
// Getting inputs
//fast_length = input(title="Fast Length", defval=12)  //默认输入  快线长度  12
//slow_length = input(title="Slow Length", defval=26)  //默认输入  慢线长度  26
//src = input(title="Source", defval=close)            //来源：收盘价
signal_length = input.int(title="Signal Smoothing",  minval = 1, maxval = 50, defval = 9)  //信号平滑：最小1、最大50、默认输入 9

sma_source = input.string(title="Oscillator MA Type",  defval="EMA", options=["SMA", "EMA"])  //振荡器类型、默认输入：EMA   选择输入：EMA、SMA
sma_signal = input.string(title="Signal Line MA Type", defval="EMA", options=["SMA", "EMA"])   //信号线类型、默认输入：EMA   选择输入：EMA、SMA
col_macd = input(#2962FF, "MACD Line  ", group="Color Settings", inline="MACD")  //选择MACD颜色
col_signal = input(#FF6D00, "Signal Line  ", group="Color Settings", inline="Signal")  //选择信号颜色
col_grow_above = input(#26A69A, "Above   Grow", group="Histogram", inline="Above")  //选择直方图0颜色  上面柱子深
col_fall_above = input(#B2DFDB, "Fall", group="Histogram", inline="Above")  //选择直方图1颜色          上面柱子浅
col_grow_below = input(#FFCDD2, "Below Grow", group="Histogram", inline="Below")  //选择直方图2颜色    下面柱子深
col_fall_below = input(#FF5252, "Fall", group="Histogram", inline="Below")  //选择直方图3颜色          下面柱子浅

macd = ta.ema(close,12) - ta.ema(close,26)  //定义MACD值=快线 DIF
signal = sma_signal == "SMA" ? ta.sma(macd, signal_length) : ta.ema(macd, signal_length)  //定义MACD值=慢线 DEM   通常是9日均线
hist = macd - signal
hline(0, "Zero Line", color=color.new(#787B86, 50)) //选择水平线的颜色
plot(hist, title="Histogram", style=plot.style_columns, color=(hist>=0 ? (hist[1] < hist ? col_grow_above : col_fall_above) : (hist[1] < hist ? col_grow_below : col_fall_below)))
plot(macd, title="MACD", color=col_macd)
plot(signal, title="Signal", color=col_signal)

//金叉死叉
jin = ta.crossover(macd,signal)
si = ta.crossunder(macd,signal)

//触发条件、和在屏幕上显示：“金”、“死”
plotchar(jin?macd:na,char="金",location = location.absolute,color = color.blue,size = size.tiny)
plotchar(si?macd:na,char="死",location = location.absolute,color = color.red,size = size.tiny)