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串口发送数据文本框里面想显示16进制数,现在是字符格式的,可以帮我下吗?

/// <summary>
/// 16进制编码
/// </summary>
/// <param name="hexString"></param>
/// <returns></returns>
private byte[] strToHexByte(string hexString)
{
hexString = hexString.Replace(" ", "");
if ((hexString.Length % 2) != 0) hexString += " ";
byte[] returnBytes = new byte[hexString.Length / 2];
for (int i = 0; i < returnBytes.Length; i++)
returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2).Replace(" ", ""), 16);
return returnBytes;
}
串口通信具体实现,可以参考如下文章,我就是根据这个学习的
https://www.cnblogs.com/Traveller-Lee/p/6940221.html