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1Qter豆
[img]file:///C:\Users\keke\AppData\Roaming\Tencent\Users\418584162\QQ\WinTemp\RichOle\[P]SF2A6DSZ3L$T}]MFJK9H.png[/img]串口通信,想通过点击下拉框,给lineedit内填内容,然后点击确认,分别发送a=lineedit#空格 b=lineedit#空格 NUM=lineedit空格,,,,,该怎么弄啊,小白求帮助[img]file:///C:\Users\keke\AppData\Local\Temp\52W[C~~FFQ[27)18U93ZOWB.gif[/img]
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