masm有自带IDE环境：qeditor
注意：在include/includelib时要写完整路径
.386
.model flat,stdcall
option casemap:none
;include
include <E:\masm32/include/windows.inc>
include <E:\masm32/include/user32.inc>
includelib <E:\masm32/lib/user32.lib>
include <E:\masm32/include/kernel32.inc>
includelib <E:\masm32/lib/kernel32.lib>
; data
.data
szCpation db 'A Messagebox!',0
szText db 'Hello world!',0
; code
.code
start:
invoke MessageBox,NULL,offset szText, offset szCpation, MB_OK
invoke ExitProcess,NULL
end start
