循环输出得问题~~~~~~~~~~~~~~

[bc00718]

这个代码是 输入1-9中得任意一个数 输出相应个数的*

有错误 请各位高手帮忙改下 谢谢~~~~~~~~~


DATA SEGMENT
STRING DB 'please press 1--9:$'
BUF DB 'GOOD BYE$'
CR DB 0DH,0AH,'$'
DATA ENDS

CODE SEGMENT
ASSUME CS:CODE,DS:DATA

START:MOV AX,DATA
MOV DS,AX

A: LEA DX,STRING
MOV AH,09H
INT 21H
MOV AH,01H
INT 21H

CMP AL,'1'
JB A
CMP AL,'9'
JA A

MOV CL,AL
MOV CH,0

B: MOV DX,'*'
MOV AH,02H
INT 21H
DEC CL
JNZ B

LEA BX,CR
MOV AH,09H
INT 21H

LEA AX,BUF
MOV AH,09H
INT 21H

MOV AH,4CH
INT 21H


CODE ENDS
END START

[dongyi940333]

DATA SEGMENT  
	STRING DB 'please press 1--9:$' 
	BUF DB 'GOOD BYE$' 
	CR DB 0DH,0AH,'$' 
DATA ENDS 

CODE SEGMENT 
   ASSUME CS:CODE,DS:DATA 

START:
	MOV AX,DATA 
      	MOV DS,AX 

A:      LEA DX,STRING 
        MOV AH,09H 
        INT 21H 
	MOV AH,01H 
	INT 21H 

	CMP AL,'1' 
	JB A 
	CMP AL,'9' 
	JA A 


	SUB AL, 30H;AL返回的是字符的ASCII,要减去30H,以得到输入的数字的实际值
	MOV CL,AL
	MOV CH,0 
	
B: 
	MOV DL, '*'
	MOV AH,02H 
	INT 21H 
	LOOP B
	
	 
	LEA DX,CR 
	MOV AH,09H 
	INT 21H 

	LEA DX,BUF 
	MOV AH,09H 
	INT 21H 

	MOV AH,4CH 
	INT 21H 
  

CODE ENDS 
END START

不对之处请原谅!!!

[bc00718]

谢谢呀 可以运行 是对得~~~~~~