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heyx866
Heyx
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樓主  發(fā)表于: 2011-08-02 17:40
工程中設備需要讀產(chǎn)品的條碼，用一個(gè)BARCODE SCANNER掃描槍掃條形碼，我采用0端口自由口協(xié)議的方式進(jìn)行中斷通訊，可是所編的程序始終監視不到VB100緩存區被寫(xiě)入數據，一直為0。請各位高手鑒定，哪里有問(wèn)題？
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