Question

基于显示的代码..我是否正在编写正确的编码，如果我想比较正在流的数据？基本上从部分开始

while(serialPort1.IsOpen)

例如，收到的第一个数据字符串是 T 12 29.5 ，然后下一个字符串是 T 12 29.5 ，然后是 T 20 24.5 ，然后是......基本上无法预测接下来会收到什么。

我想编程能够检测/计算中间值的外观数量......比如......

====================
[编号] | [重复次数]

12 | 2

===================但是当收到另一个不同的号码时，

[数字] | [反复]

20 | 1

===================只要收到不同的号码，该号码的计数器就会被覆盖和重置。

private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
    {

        string time = DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss.ff");
        RxString = serialPort1.ReadLine();

        string[] split = RxString.Split('.');  
        string dp = split[1];  
        Char c = dp[0]; 
        split[1] = c.ToString();
        RxString = split[0] + "." + split[1];  

        while (serialPort1.IsOpen)
        {
        string[] number = RxString.Split(' ');  
        string unit = number[1];  

        int count = 1;
        for(int i = 1; i < unit.Count(); i++) 
        {
        if(unit[i-1] == unit[i])
            count++;
        else
            count = 1;

        if(count == 4)
        {
    //execute some parameters
        }
        }
        }

        this.Invoke(new EventHandler(DisplayText));

        StreamWriter MyStreamWriter = new StreamWriter(@"C:\Users\acer\Documents\Data3.txt", true);  
        MyStreamWriter.Write(time + "      " + RxString + "\r\n");  
        MyStreamWriter.Flush();
        MyStreamWriter.Close();
    }

EDIT V2

为什么不会将记录数据只计数为1？

            string[] number = RxString.Split(' ');  //split RxString by ' '
            string unit = number[1];  //unit = unit no. 
            int count = 1;

            for (int i = 1; i < unit.Count(); i++)
            {
                if (unit[i - 1] == unit[i])
                    count++;
                else
                {
                    count = 1;
                    StreamWriter MyStreamWriter = new StreamWriter(@"C:\Users\acer\Documents\Data3.txt", true);  //True tell SW to append to file instead of overwriting
                    MyStreamWriter.Write(time + "      " + RxString + "\r\n");  //Write time + string
                    MyStreamWriter.Flush();
                    MyStreamWriter.Close();
                }

Answer 1

您应该使用字典来存储每个元素及其自己的计数：

var dict = new Dictionary<string, int?>();

while (serialPort1.IsOpen)
{
    string[] number = RxString.Split(' ');
    string unit = number[1];

    if (dict.ContainsKey(unit))
    {
        if (dict[unit].HasValue)
        {
            dict[unit]++;
            if (dict[unit] == 4)
            {
                // execute some parameters

                dict[unit] = null;
            }
        }
    }
    else
    {
        dict.Add(unit, 1);
    }
}

Answer 2

我会为此创建一个特殊的结构：

struct DataInfo
{
    public string Number { get; set; }
    public int Counter { get; set; }        
    ... Other data you require to work with
}

并使用List<DataInfo>或Dictionary<string, DataInfo>来存储值;

检测部分接收数据的重复

2 个答案: