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求高手指点,怎么检测是否有串口设备连接 |
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发表于 2007-1-17 08:44:05
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发表于 2007-1-17 08:45:40
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发表于 2007-4-3 20:10:26
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注意要暂时断掉异常显示
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发表于 2009-2-12 13:35:28
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发表于 2009-2-12 16:22:10
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发表于 2009-2-12 19:32:53
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发表于 2009-2-13 13:56:06
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发表于 2009-2-13 15:52:34
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