1. 逻辑符号。
AND, NOT, OR.
2. MQL 4语言指令。
Array, Begin, Break, Continue, Define, Downto, Else, End, Exit, For, If, Input, Then, To, Variable, While。界定语言指令结构的固定字也叫做关键字。
3. 内置函数。
Abs, AccName, AccountName, Alert, Ceil, CloseOrder, Comment, Cos, CurTime, Day, DayOfWeek, DeleteOrder, Exp, Floor, Hig...