MASM6.11中编译的时候错误提示：warning A4012: line number information for segment without class

[xiaoqianghua]

DATA1 SEGMENT
MSG1 DB 13,10,"Iteration"
NUM1 DB '1',"$"
MSG2 DB 13,10,"Alphabet: $"
NUM2 DB 'A',"$"
MSG3 DB 13,10,"Type digits,the press ENTER:$"
DATA1 ENDS
CODE1 SEGMENT
ASSUME CS:CODE1,DS:DATA1
START:MOV AX,DATA1
MOV DS,AX
MOV CX,9
MOV AH,09H
MOV DX,OFFSET MSG1
.REPEAT
INT 21H
INC NUM1
.UNTILCXZ
MOV DX,OFFSET MSG2
INT 21H
MOV AH,09H
MOV DX,OFFSET NUM2
.REPEAT
INT 21H
INC NUM2
.UNTIL NUM2>'Z'
MOV AH,09H
MOV DX,OFFSET MSG3
INT 21H
.WHILE 1
MOV AH,07H
INT 21H
.BREAK .IF AL==13
.CONTINUE .IF (AL<'0')||(AL>'9')
MOV DL,AL
MOV AH,02H
INT 21H
.ENDW
MOV AX,4C00H
INT 21H
CODE1 ENDS
END START
编译时错误提示：warning A4012: line number information for segment without class
请那位大侠告诉我是设置那里出来问题，请详细点 谢谢

[zara]

呃? 楼主用的是什么汇编程序? 我用 Masm6 是可以通过的, 没有错误和警告. 而且, Masm6 的 A4012 好像也不是这个错误信息类型的

[xiaoqianghua]

我用的是Masm6.11的