var
a:array [1..100] of integer;
total:integer;
i:integer;
begin
//在FormCreate中使用 Randomize; 这条语句
Table1.Open;
total:=Table1.RecordCount;
for i:=1 to 100 do begin
Table1.First;
Table1.MoveBy(random(total));
a[i]:=Table1.FieldByName('xxx').AsInteger;
end;