type TABC = 'A'..'G'; {定义子界} var abcArr: array[TABC] of Integer; {定义数组} abc: TABC; {定义子界变量} begin {数组赋值} abcArr['A'] := 11; abcArr['B'] := 22; abcArr['C'] := 33; abcArr['D'] := 44; abcArr['E'] := 55; abcArr['F'] := 66; abcArr['G'] := 77; {调用数组} ShowMessage(IntToStr(abcArr['G'])); {77} {遍历数组} for abc := Low(abcArr) to High(abcArr) do begin ShowMessage(IntToStr(abcArr[abc])); {11 22 33 44 55 66 77} end; end;