4.Statistics.arm

DATA SEGMENT
    NUM   DB 100                ;准备接收100个字符.
    NNN   DB ?                  ;用于存放实际输入的个数.
    BUFFER   DB 100 DUP(?)         ;100字节的空间.
    N_N   DB ?
    S_N   DB ?
    C_N   DB ?
    O_N   DB ?
    MESSAGE  DB  13, 10, 'Input STR  : $   ' ;用于提示.
    MES_C  DB  13, 10, 'Char  N is : $   ' ;用于提示.
    MES_S  DB  13, 10, 'Space N is : $   ' ;用于提示.
    MES_N  DB  13, 10, 'Num   N is : $   ' ;用于提示.
    MES_O  DB  13, 10, 'Other N is : $   ' ;用于提示.
    MES_A  DB  13, 10, 'All   N is : $   ' ;用于提示.
DATA ENDS

CODE SEGMENT
    ASSUME  CS:CODE, DS:DATA
START:
    MOV  AX, DATA
    MOV  DS, AX
    
    MOV  N_N, 0
    MOV  S_N, 0
    MOV  C_N, 0
    MOV  O_N, 0
    
    MOV  DX, OFFSET MESSAGE
    MOV  AH, 9                  ;提示输入
    INT  21H
    
    MOV  DX, OFFSET NUM
    MOV  AH, 10             
    INT  21H

    MOV  CL, NNN             ;收到字符的个数.
    CMP  CL, 0
    JNZ  ZIFU
    JMP  EXIT

ZIFU:
    LEA  SI, BUFFER            ;收到字符的起始地址.

AGAIN:
    MOV  AL, [SI]
    CMP  AL, ' '             ;- ' '
    JNZ  N_num               ;
    INC  S_N
    JMP  NEXT

N_num:
    CMP  AL, ':'             ;- ':'
    JNC  N_C_B               ;> '9'
    CMP  AL, '0'
    JC   N_C_B               ;< '0'
    INC  N_N                 ;数字个数加一.
    JMP  NEXT

N_C_B:
    CMP  AL, '['             ;- '['
    JNC  N_C                 ;> 'Z'
    CMP  AL, 'A'
    JC   N_C                 ;< 'A'
    INC  C_N                 ;大写，加一.
    JMP  NEXT

N_C:
    CMP  AL, '{'             ;- '{'
    JNC  OTHER               ;> 'z'
    CMP  AL, 'a'
    JC   OTHER               ;< 'a'
    INC  C_N                 ;小写，加一.
    JMP  NEXT

OTHER:
    INC  O_N                 ;其它.

NEXT:

    INC  SI
    LOOP AGAIN

    MOV  DX, OFFSET MES_N
    MOV  AH, 9               
    INT  21H
    MOV  AL,  N_N
    MOV  DL,AL
    ADD  DL,30H
    MOV  AH, 2
    INT  21H
    
    MOV  DX, OFFSET MES_S
    MOV  AH, 9               
    INT  21H
    MOV  AL,  S_N
    MOV  DL,AL
    ADD  DL,30H
    MOV  AH, 2
    INT  21H
    
    MOV  DX, OFFSET MES_C
    MOV  AH, 9               
    INT  21H
    MOV  AL,  C_N
    MOV  DL,AL
    ADD  DL,30H
    MOV  AH, 2
    INT  21H
    
    MOV  DX, OFFSET MES_O
    MOV  AH, 9               
    INT  21H
    MOV  AL,  O_N
    MOV  DL,AL
    ADD  DL,30H
    MOV  AH, 2
    INT  21H
    
    MOV  DX, OFFSET MES_A
    MOV  AH, 9               
    INT  21H
    MOV  AL,  NNN
    MOV  DL,AL
    ADD  DL,30H
    MOV  AH, 2
    INT  21H

EXIT:
    MOV  AH, 4CH
    INT  21H


CODE  ENDS
    END START