学习EA，指标不会实时刷新数值
huang:
我学些EA，学了一些简单的语法，写了一个5日均线，然后和系统自带的SMA(5)进行比较，我发现系统自带的指标随着最后一个柱线的收盘价的变化，均线末端的值也发生变化，而我写的就不变化，要等一个周期走完才变化，不知道哪里有问题了
//+------------------------------------------------------------------+
//| MT3x3.mq4 |
//| Copyright 2016, MetaQuotes Software Corp. |
//| http://www.mql4.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2016, MetaQuotes Software Corp."
#property link "http://www.mql4.com"
#property version "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 clrRed
double Dma3_H1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//--- indicator buffers mapping
IndicatorDigits(Digits());
SetIndexStyle(0,DRAW_LINE);//设置画线形式
SetIndexBuffer(0,Dma3_H1);//画线数组
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
//---
for(int i=0; i<=iBars("USDJPY",PERIOD_H1); i++){
Dma3_H1[i]=iMA("USDJPY",PERIOD_H1,5,0,MODE_SMA,PRICE_CLOSE,i);
}
//--- return value of prev_calculated for next call
return(0);
}
//+------------------------------------------------------------------+
//| MT3x3.mq4 |
//| Copyright 2016, MetaQuotes Software Corp. |
//| http://www.mql4.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2016, MetaQuotes Software Corp."
#property link "http://www.mql4.com"
#property version "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 clrRed
double Dma3_H1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//--- indicator buffers mapping
IndicatorDigits(Digits());
SetIndexStyle(0,DRAW_LINE);//设置画线形式
SetIndexBuffer(0,Dma3_H1);//画线数组
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
//---
for(int i=0; i<=iBars("USDJPY",PERIOD_H1); i++){
Dma3_H1[i]=iMA("USDJPY",PERIOD_H1,5,0,MODE_SMA,PRICE_CLOSE,i);
}
//--- return value of prev_calculated for next call
return(0);
}
//+------------------------------------------------------------------+
你用的是收盘价，系统用的是实时
weiliang Li:
谢谢，对比了源码，IndicatorCounted 这个函数用了之后就可以了实时刷新了。
我学些EA，学了一些简单的语法，写了一个5日均线，然后和系统自带的SMA(5)进行比较，我发现系统自带的指标随着最后一个柱线的收盘价的变化，均线末端的值也发生变化，而我写的就不变化，要等一个周期走完才变化，不知道哪里有问题了
//| MT3x3.mq4 |
//| Copyright 2016, MetaQuotes Software Corp. |
//| http://www.mql4.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2016, MetaQuotes Software Corp."
#property link "http://www.mql4.com"
#property version "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 1
#property indicator_color1 clrRed
double Dma3_H1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//--- indicator buffers mapping
IndicatorDigits(Digits());
SetIndexStyle(0,DRAW_LINE);//设置画线形式
SetIndexBuffer(0,Dma3_H1);//画线数组
//---
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
//---
for(int i=0; i<=iBars("USDJPY",PERIOD_H1); i++){
Dma3_H1[i]=iMA("USDJPY",PERIOD_H1,5,0,MODE_SMA,PRICE_CLOSE,i);
}
//--- return value of prev_calculated for next call
return(0);
}
//+------------------------------------------------------------------+