How to change text color in dos box /Turbo c++ compiler

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#include<conio.h>
int main()
{
int i;

 for (i=1;i<=10;i++)
{
textcolor(i);
cprintf("  %d  ",i);
}
getch();
return 0;
}
//textcolor is a function defined in conio.h library
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output:-