PINE教学2：金叉死叉与均线区域填充.pine

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

//@version=5
indicator("PINE教学2：金叉死叉与均线区域填充", overlay=true) // strategy/library

// 求均线
ma12 = ta.ema(close, 12)// Simple Moving Average
ma26 = ta.ema(close, 26)// Simple Moving Average

// 画均线
line1 = plot(ma12, color=color.red)
line2 = plot(ma26, color=color.blue)

// 金叉死叉信号
gold = ta.crossover(ma12, ma26) // ma12 > ma26 and ma12[1] < ma26[1] 等价于 ta.crossover(ma12, ma26)
dead = ta.crossunder(ma12, ma26) // ma12 < ma26 and ma12[1] > ma26[1] 等价于 ta.crossunder(ma12, ma26)

// 金叉死叉信号绘制
plotchar(gold, char="买", location=location.belowbar, color=color.green, size=size.tiny)
plotchar(dead, char="卖", location=location.abovebar, color=color.red, size=size.tiny)

// 填充均线背景
_color = ma12>ma26 ? color.new(#ff0000, 20) : color.new(#00ff00, 20) // 如果ma12>ma26 那么_color=color.green，否则_color=color.red
fill(line1, line2, color=_color)