将Arduino校验和功能转换为C＃

Question

我已经有了要在C＃中使用的Arduino校验和函数来检查收到的数据的有效性：

Arduino中的char的长度为1个字节， int的长度为2个字节，C＃中的相应数据类型为short

char Send::calcChecksum(const char* const packet, const int packetLength) {
    int i = 0;
    char checksum = 0;
    while(i < packetLength) {
        checksum ^= packet[i++];
    }
    return checksum;
}

我将如何在C＃中编写此函数？ 我特别困惑^=运算符的作用。

Answer 1

using System;

public class Program
{
    public static void Main()
    {
        var stringToCheck = "hi there";

        Console.WriteLine("Checksum for " + stringToCheck + ": " + CalcChecksum(stringToCheck, stringToCheck.Length));
    }

    static int CalcChecksum(string packet, int packetLength)
    {
        char checksum = (char)0;

        for (int i = 0; i < packetLength; i++)
        {
            checksum ^= packet[i];
        }

        return checksum;
    }
}

https://dotnetfiddle.net/6icpvv