VB.NET SerialPort 发送字符串和字节
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VB.NET SerialPort send strings and bytes
提问by GoingForGold
I'm stuck at the moment because it seems like I'm really mixing up things and I am not able to test it because there are so many conversions and I'm not sure what happens where. I'm sure you can resolve that :)
我现在被卡住了，因为看起来我真的把事情搞混了，我无法测试它，因为转换太多了，我不确定在哪里发生了什么。我相信你可以解决这个问题:)
I need to send strings and bytes over serial.
我需要通过串行发送字符串和字节。
Sending a string is easy: SerialPort.Write(text)
发送字符串很简单：SerialPort.Write(text)
But I also need to send bytes. How do I send the byte-value 50 to the SerialPort? NOT the integer 50 converted to byte! How do I go about this exactly?
但我也需要发送字节。如何将字节值 50 发送到 SerialPort？不是整数 50 转换为字节！我该怎么做呢？
SerialPort.Write(50, 0, 1) says 50 is an integer. How do I make this a byte?
SerialPort.Write(50, 0, 1) 表示 50 是一个整数。我如何使它成为一个字节？
Here's the reference: https://msdn.microsoft.com/en-us/library/ms143551%28v=vs.110%29.aspx?cs-save-lang=1&cs-lang=vb#code-snippet-1
这是参考：https: //msdn.microsoft.com/en-us/library/ms143551%28v=vs.110%29.aspx?cs-save-lang=1&cs-lang=vb#code-snippet-1
Cheers and thanks!
干杯和感谢！
回答by dbasnett
Something like this
像这样的东西
Dim b() As Byte = {50}
yourSerailPort.Write(b, 0, 1)
