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string compare problom ,help me
string a; if (a== "" ) Alert ( "ok" ); if a equel empty, How do I write
What my easy code 's error,two value compare
Look last Code ,why the run ruzult is ok2 not ok3? double a= 4.0 ; double b= 4.5 ; if (a>b) Alert ( "ok1" ); if (a<b) Alert ( "ok2" ); if (a==b) Alert ( "ok3" ); double a= 4.0 ; int b= 4 ; if (a>b) Alert ( "ok1" ); if (a<b) Alert ( "ok2" );
How to use switch statement,What problom of my below code
switch (x) { case 1 : if (USD== 1 ) firstcurrent= 1 ; if (USD== 2 ) firstcurrent= 2 ; case 2 : if (EUR== 1 ) firstcurrent= 1 ; if (EUR== 2 ) firstcurrent= 2 ; case 3 : if (GBP== 1 )
syntax error dont disyplay arrow ,just display another icon,why ,plese help me thank you,
//+------------------------------------------------------------------+ //| 两个KD都背离.mq4 | //| Copyright 2014, MetaQuotes Software Corp. | //| https://www.mql5.com |
cal problom double type cal
double a=1.7; double b=1.6; double c=a-b; Alert(c); the result is 0.99999999999999999987
C++ ploblom, the front of "" is mean?
string a=( "" + TimeCurrent () + 100 + ";" ); I see have code like that written, what mean? I use FileWrite fuction put the code into xx.txt file,but I can't Read it use FileOpeN- FileReadNumber, I find the cause,possible is the number is oversize,I use WINDOUS XP systom,I Want to Read the
terminal 604 calculate problom
int c= 100 ; int d= 70 ; double a=d/c; Alert ( DoubleToStr (a, 8 )); output 0? why I English is very pool,thank your much fo help
prompt the synchronization failed, processing of trade actions disabled
How to solve the problom
help me,information local positions do not correspond to signal provider
How to solve the problem
what's meam of DOUBLE_VALUE?
<CODE REMOVED > handle = FileOpenHistory( Symbol () + Period () + ".hst" , FILE_BIN | FILE_READ ); bool GetPrices( int & PriceTime, int & PriceLow, int & PriceHigh) { PriceTime = FileReadInteger (handle); FileSeek (handle, DOUBLE_VALUE, SEEK_CUR ); PriceLow = FileReadDouble (handle) / Point +