banksystem.asm

用8086汇编语言设计一存取款小软件系统。要求进入系统后

  DATAS SEGMENT
   STRING0  DB 'PLEASE INPUT YOUR 6 PASSWORD:',0DH,0AH,'$'

   STRING1  DB 'WELCOME TO THE SYSTEM!',0DH,0AH
   STRING2  DB 0DH,0AH,'A:LEAVE THE SYSTEM!',0DH,0AH
   STRING3  DB 'B:DISPLAY THE NUMBER!',0DH,0AH
   STRING4  DB 'C:SAVE THE MONEY!',0DH,0AH
   STRING5  DB 'D:TAKE OUT THE MONEY!',0DH,0AH
   STRING6  DB 0DH,0AH,'CHOOSE THE NUMBER:',0DH,0AH,'$'

   STRING7  DB 'PLEASE INPUT YOUR 6 PASSWORD AGAIN',0DH,0AH,'$'
   PASSWORD DB 'S','Z','Q','X','Y','F'
   INPD     DB ?,?,?,?,?,? 

   COUNT    DB ? 
   
   FUNB     DB  0DH,0AH,'YU E :',0DH,0AH,'$'
   FUNC     DB  0DH,0AH,'THE NUMBER YOU WANT TO SAVE:',0DH,0AH,'$'
   FUND     DB  0DH,0AH,'THE NUMBER YOU WANT TO TAKE OUT:',0DH,0AH,'$'




DATAS ENDS


STACKS SEGMENT
     db 100 dup(?)
STACKS ENDS


CODES SEGMENT
    ASSUME CS:CODES,DS:DATAS,SS:STACKS,ES:DATAS
    
START:
    MOV AX,DATAS
    MOV DS,AX
    MOV AX,DATAS
    MOV ES,AX

    MOV AL,03H
    MOV COUNT,AL
L0:   
    MOV DX, OFFSET STRING0    ;提示输入密码
    MOV AH,09H
    INT 21H
    MOV CX,6

    LEA SI,INPD
L1:       
    LEA DX,[SI]         ;输入密码
    MOV AH, 08H
    INT 21H
    INC SI
     
    MOV DL,'*'    ;提示输入密码
    MOV AH,02H
    INT 21H
    LOOP L1

    MOV CX,6

L2:
    LEA SI,INPD             ;比较字符串
    LEA DI,PASSWORD
    CMP SI,DI  
    JNZ NO           ;若字符串不相同时，则停止比较
    INC SI                   
    INC DI
    LOOP L2
    



YES:
       MOV DX, OFFSET STRING1 ;密码正确是输出一系列字符
       MOV AH,09H
       INT 21H
       MOV AH,01H
       INT 21H
       CMP AL,'A'
       JE FUNCTIONA
       CMP AL,'B'
       JE FUNCTIONB
       CMP AL,'C'
       JE FUNCTIONC
       CMP AL,'D'
       JE FUNCTIOND
       
       
       
       MOV AH, 4CH
       INT 21H  
NO:
     
      MOV DX, OFFSET STRING7         ;密码不正确时重新输入
      MOV AH,09H
      INT 21H

      MOV AL,COUNT
      DEC AL  


      MOV AH, 4CH
      INT 21H
 
FUNCTIONA:
      CALL START
       RET
       MOV AH, 4CH
       INT 21H 
        
FUNCTIONB:
          MOV DX,OFFSET FUNB
          MOV AH,09H
          INT 21H
          MOV AH, 4CH
          INT 21H 
FUNCTIONC:
          MOV DX,OFFSET FUNC
          MOV AH,09H
          INT 21H
          MOV AH,4CH
          INT 21H
FUNCTIOND:
          MOV DX,OFFSET FUND
          MOV AH,09H
          INT 21H
          MOV AH,4CH
          INT 21H




CODES ENDS
    END START