最近编写汇编代码，遇到一个问题，请高手不吝赐教。代码如下,jmp        short loc_401FAC，跳转语句有问题.
......
push        ecx
mov        ebx, offset dword_405174
jmp        short loc_401FAC

; Attributes: library function

__NLG_Notify proc near
push        ebx
push        ecx
mov        ebx, offset dword_405174
mov        ecx, [ebp+8]

loc_401FAC:
mov        [ebx+8], ecx
mov        [ebx+4], eax
mov        [ebx+0Ch], ebp

__NLG_Dispatch:
pop        ecx
pop        ebx
retn        4
__NLG_Notify endp
......

C:\RadASM\Masm32\Bin\ML.EXE /c /coff /Cp /nologo /I"C:\RadASM\Masm32\Include" "C:\software\逆向\C-\1.asm"
Assembling: C:\software\逆向\C-\1.asm
C:\software\逆向\C-\1.asm(4680) : error A2006: undefined symbol : loc_401FAC

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