Could you tell me the how to implement, validate

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Is the matrix keyboard scanning? Shows the Arabic numerals, not Chinese Numbers,

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reference 3 floor wise men know already should good karma response:

Thank you, what I mean is that you say, just send the first time, don't send all??

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https://blog.csdn.net/xianfajushi/article/details/80885105
Obtain the keyboard synthesis an integer value to display is that data to see, blog,