如何在mt4中打开MFI指标的源码

//+------------------------------------------------------------------+ //| Money Flow Index.mq4 | //| Copyright © 2005, MetaQuotes Software Corp. | //| http://www.metaquotes.net/ | //+------------------------------------------------------------------+ #property copyright "Copyright © 2005, MetaQuotes Software Corp." #property link "http://www.metaquotes.net/" #property indicator_separate_window #property indicator_minimum 0 #property indicator_maximum 100 #property indicator_level1 20 #property indicator_level2 80 #property indicator_buffers 1 #property indicator_color1 Blue //---- input parameters extern int ExtMFIPeriod=14; //---- buffers double ExtMFIBuffer; //+------------------------------------------------------------------+ //| Custom indicator initialization function | //+------------------------------------------------------------------+ int init() { string sShortName; //---- SetIndexBuffer(0,ExtMFIBuffer); //---- indicator line SetIndexStyle(0,DRAW_LINE); //---- name for DataWindow and indicator subwindow label sShortName="MFI("+ExtMFIPeriod+")"; IndicatorShortName(sShortName); SetIndexLabel(0,sShortName); //---- first values aren't drawn SetIndexDrawBegin(0,ExtMFIPeriod); //---- return(0); } //+------------------------------------------------------------------+ //| Money Flow Index | //+------------------------------------------------------------------+ int start() { int i,j,nCountedBars; double dPositiveMF,dNegativeMF,dCurrentTP,dPreviousTP; //---- insufficient data if(Bars<=ExtMFIPeriod) return(0); //---- bars count that does not changed after last indicator launch. nCountedBars=IndicatorCounted(); //---- i=Bars-ExtMFIPeriod-1; if(nCountedBars>ExtMFIPeriod) i=Bars-nCountedBars-1; while(i>=0) { dPositiveMF=0.0; dNegativeMF=0.0; dCurrentTP=(High+Low+Close)/3; for(j=0; jdPreviousTP) dPositiveMF+=Volume[i+j]*dCurrentTP; else { if(dCurrentTP