怎么下载mt4，电脑怎么下载MT4

在MT4上，是没有三线KDJ指标的，分享KDJ指标源码：

#property copyright "Copyright 2020"

#property link      "https://www.mql5.com"

#property version   "1.00"

#property strict

#property indicator_separate_window

#property indicator_buffers 3

#property indicator_plots   3

//--- plot KLine

#property indicator_label1  "KLine"

#property indicator_type1   DRAW_LINE

#property indicator_color1  clrWhite

#property indicator_style1  STYLE_SOLID

#property indicator_width1  1

//--- plot DLine

#property indicator_label2  "DLine"

#property indicator_type2   DRAW_LINE

#property indicator_color2  clrGold

#property indicator_style2  STYLE_SOLID

#property indicator_width2  1

//--- plot JLine

#property indicator_label3  "JLine"

#property indicator_type3   DRAW_LINE

#property indicator_color3  clrDarkViolet

#property indicator_style3  STYLE_SOLID

#property indicator_width3  1

#property indicator_levelstyle STYLE_DOT
#property indicator_levelcolor clrSilver
#property indicator_level1  0
#property indicator_level2  20
#property indicator_level3  50
#property indicator_level4  80
#property indicator_level5  100
//---- input parameters
input int N =9;//%K 周期
input int M1=3;//%D 周期
input int M2=3;//慢速
//--- indicator buffers
double         KBuffer[];
double         DBuffer[];
double         JBuffer[];
double llv[],hhv[],rsv[];
double p=0,p1=0;
double f=0,f1=0;
// ------------------------------------------------------------------
//| Custom indicator initialization function                         |
// ------------------------------------------------------------------
int OnInit()
  {
//--- indicator buffers mapping
   IndicatorBuffers(6);
   SetIndexBuffer(0,KBuffer);
   SetIndexBuffer(1,DBuffer);
   SetIndexBuffer(2,JBuffer);
   SetIndexBuffer(3,llv,INDICATOR_CALCULATIONS);
   SetIndexBuffer(4,hhv,INDICATOR_CALCULATIONS);
   SetIndexBuffer(5,rsv,INDICATOR_CALCULATIONS);
   for(int i=0; i
                                                        
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