我有一个问题，我的代码。它总是说它有双重声明的代码，我不知道如何修复它。无论我合并段或离开他们像这样说同样的事情。（我也不是真的知道很多关于这个程序。我们在学校做的，所以就是这样。）
这是密码

; Mastermind game in assembly language for the 8086

; Declare data segment
data segment
    code db 4 dup (0) ; Random 4-digit code
    guess db 4 dup (0) ; Player's current guess
    feedback db 10 dup (0) ; Feedback for each attempt
    attempts db 0 ; Number of attempts
    digits db '0123456789', 0 ; Valid digits
data ends

; Declare code segment
code segment
start:
    ; Initialize the code
    call generate_code

    ; Loop for 10 attempts
    mov bx, 10
    repeat:
        ; Get the player's guess
        call get_guess

        ; Check the guess against the code
        call check_guess

        ; Give feedback to the player
        call give_feedback

        ; Check if the player won
        call check_win

        ; Decrement the number of attempts
        dec bx
        jnz repeat

    ; The player lost
    call print_lose
    jmp exit

; Generates a random 4-digit code
generate_code:
    ; Initialize the random number generator
    mov ax, 0
    mov cx, 0x1234
    mov dx, 0x5678
    call rand

    ; Generate 4 random digits
    mov cx, 4
    generate_digit:
        ; Get a random digit
        mov ax, 10
        call rand
        mov al, dl

        ; Store the digit in the code
        mov [code + cx - 1], al

        ; Decrement the counter
        dec cx
        jnz generate_digit

    ; Return
    ret

; Gets the player's guess
get_guess:
    ; Prompt the player
    call print_prompt
    call read_guess

    ; Validate the guess
    call validate_guess

    ; Return
    ret

; Reads the player's guess from the input
read_guess:
    ; Read 4 characters
    mov cx, 4
    read_character:
        ; Read a character
        call getchar

        ; Store the character in the guess
        mov [guess + cx - 1], al

        ; Decrement the counter
        dec cx
        jnz read_character

    ; Return
    ret

; Validates the player's guess
validate_guess:
    ; Check that each character is a valid digit
    mov cx, 4
    validate_character:
        ; Get the current character
        mov al, [guess + cx - 1]

        ; Check if the character is a valid digit
        mov bx, digits
        call strchr
        cmp ax, -1
        jz invalid

        ; Decrement the counter
        dec cx
        jnz validate_character

    ; Return
    ret
code ends