.model small .stack 100h .data msg db 'The string is a palindrome.$' msg1 db 'The string is a palindrome.$' msg2 db 'The string is not a palindrome.$' str db 'abccba$' db '1234321$' db 'sdsfds$' .code main proc mov ax, @data mov ds, ax ; 计算字符串长度 mov si, 0 mov cx, 0 mov cl, 6 dec cx ; 双重循环判断回文字符串 mov di, cx shr cx, 1 mov bx, 0 cmp cx, bx jle palindrome mov bx, 1 outer_loop: mov al, [str+si+1] mov ah, [str+di+1] cmp al, ah jne not_palindrome inc si dec di cmp si, di jg palindrome inner_loop: mov al, [str+si+1] mov ah, [str+di+1] cmp al, ah jne not_palindrome inc si dec di cmp si, di jle inner_loop palindrome: ; 输出回文字符串信息 lea dx, msg1 mov ah, 09h int 21h jmp exit_program not_palindrome: ; 输出非回文字符串信息 lea dx, msg2 mov ah, 09h int 21h exit_program: mov ah, 4ch int 21h main endp end main为什么值判断一个字符串剩下几个没判断

在这个程序中，只判断了字符串 `abccba$` 是否为回文字符串，而没有判断后面的字符串 `1234321$` 和 `sdsfds$`。这是因为程序只在第一次判断回文字符串之后就跳转到了程序结束的地方，而没有给后面的字符串继续判断的机会。

如果你想要让程序能够判断多个字符串是否为回文字符串，可以在程序的结尾处添加一个循环，让程序能够多次进行字符串判断。例如，可以使用以下代码实现：

.model small
.stack 100h

.data
msg db 'The string is a palindrome.$'
msg1 db 'The string is a palindrome.$'
msg2 db 'The string is not a palindrome.$'
str1 db 'abccba$'
str2 db '1234321$'
str3 db 'sdsfds$'

.code
main proc
    mov ax, @data
    mov ds, ax

    ; 判断字符串1
    mov si, 0
    mov cx, 0
    mov cl, 6
    dec cx
    mov di, cx
    shr cx, 1
    mov bx, 0
    cmp cx, bx
    jle palindrome1
    mov bx, 1
outer_loop1:
    mov al, [str1+si+1]
    mov ah, [str1+di+1]
    cmp al, ah
    jne not_palindrome1
    inc si
    dec di
    cmp si, di
    jg palindrome1
inner_loop1:
    mov al, [str1+si+1]
    mov ah, [str1+di+1]
    cmp al, ah
    jne not_palindrome1
    inc si
    dec di
    cmp si, di
    jle inner_loop1
palindrome1:
    lea dx, msg1
    mov ah, 09h
    int 21h
    jmp check_next

not_palindrome1:
    lea dx, msg2
    mov ah, 09h
    int 21h

check_next:
    ; 判断字符串2
    mov si, 0
    mov cx, 0
    mov cl, 7
    dec cx
    mov di, cx
    shr cx, 1
    mov bx, 0
    cmp cx, bx
    jle palindrome2
    mov bx, 1
outer_loop2:
    mov al, [str2+si+1]
    mov ah, [str2+di+1]
    cmp al, ah
    jne not_palindrome2
    inc si
    dec di
    cmp si, di
    jg palindrome2
inner_loop2:
    mov al, [str2+si+1]
    mov ah, [str2+di+1]
    cmp al, ah
    jne not_palindrome2
    inc si
    dec di
    cmp si, di
    jle inner_loop2
palindrome2:
    lea dx, msg1
    mov ah, 09h
    int 21h
    jmp check_next2

not_palindrome2:
    lea dx, msg2
    mov ah, 09h
    int 21h

check_next2:
    ; 判断字符串3
    mov si, 0
    mov cx, 0
    mov cl, 6
    dec cx
    mov di, cx
    shr cx, 1
    mov bx, 0
    cmp cx, bx
    jle palindrome3
    mov bx, 1
outer_loop3:
    mov al, [str3+si+1]
    mov ah, [str3+di+1]
    cmp al, ah
    jne not_palindrome3
    inc si
    dec di
    cmp si, di
    jg palindrome3
inner_loop3:
    mov al, [str3+si+1]
    mov ah, [str3+di+1]
    cmp al, ah
    jne not_palindrome3
    inc si
    dec di
    cmp si, di
    jle inner_loop3
palindrome3:
    lea dx, msg1
    mov ah, 09h
    int 21h
    jmp exit_program

not_palindrome3:
    lea dx, msg2
    mov ah, 09h
    int 21h
    jmp exit_program

exit_program:
    mov ah, 4ch
    int 21h
main endp
end main

在这个程序中，首先判断了字符串 `abccba$` 是否为回文字符串，并输出了对应的信息。然后，程序继续判断字符串 `1234321$` 和 `sdsfds$` 是否为回文字符串，并输出相应的信息。最后，程序使用 `int 21h` 中断退出程序。