MQL4参考 普通函数 GetMicrosecondCount
GetMicrosecondCount
The GetMicrosecondCount() function returns the number of microseconds that have elapsed since the start of MQL program.
ulong GetMicrosecondCount(); |
Return Value
Example:
//+------------------------------------------------------------------+
//| Test function |
//+------------------------------------------------------------------+
void Test()
{
int res_int=0;
double res_double=0;
//---
for(int i=0;i<10000;i++)
{
res_int+=i*i;
res_int++;
res_double+=i*i;
res_double++;
}
}
//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart()
{
uint ui=0,ui_max=0,ui_min=INT_MAX;
ulong ul=0,ul_max=0,ul_min=INT_MAX;
//--- number of measurements
for(int count=0;count<1000;count++)
{
uint ui_res=0;
ulong ul_res=0;
//---
for(int n=0;n<2;n++)
{
//--- select measurement type
if(n==0) ui=GetTickCount();
else ul=GetMicrosecondCount();
//--- execute code
Test();
//--- add measurement result (depending on type)
if(n==0) ui_res+=GetTickCount()-ui;
else ul_res+=GetMicrosecondCount()-ul;
}
//--- calculate minimum and maximum time for both measurements
if(ui_min>ui_res) ui_min=ui_res;
if(ui_max<ui_res) ui_max=ui_res;
if(ul_min>ul_res) ul_min=ul_res;
if(ul_max<ul_res) ul_max=ul_res;
}
//---
Print("GetTickCount error(msec): ",ui_max-ui_min);
Print("GetMicrosecondCount error(msec): ",DoubleToString((ul_max-ul_min)/1000.0,2));
} |
See also
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