CREATE CURSOR T (A N(2),B N(2))
FOR I=1 TO 10
    INSERT INTO T (A) VALUES (I)
ENDFOR
SELECT A,RECNO()+1 JLH FROM T WHERE RECNO()<RECCOUNT() INTO CURSOR TT
SCAN
   UPDATE T SET B=A-TT.A WHERE RECNO([T])=TT.JLH
ENDSCAN
SELECT T
BROWSE

表记录超15万，这样处理太慢了，添加到数组下标也超限了，在线求解？