为什么我在 UCS2 中只得到数字如何修复命令和 c#? [英] why I get just numbers in UCS2 how can I fixed at commands and c#?

问题描述

我在通过 putty 读取短信时遇到问题，因为我输入了 AT+CMGL="ALL" 但消息(文本)和数字只是数字，我读到我的 gms 调制解调器 nokia s10 使用 UCS2，但是我不知道在这里做什么?我怎样才能阅读我的消息而不是只看到数字?请帮忙

I am having a problem with reading my sms through putty, Its beacuse I type AT+CMGL="ALL" but the message(text) and number are just numbers, I read that my gms modem nokia s10 uses UCS2, but I dont know what to do here? how can I read my message intead of just seeing numbers?? help please

我也使用 codeproject 中的这段代码，我更改了这一行，但结果与 ucs2 中的腻子只是数字相同

Also I am using this code from codeproject and I changed this line but It is the same result as putty just number in ucs2

 public ShortMessageCollection ReadSMS(SerialPort port, string p_strCommand)
    {

        // Set up the phone and read the messages
        ShortMessageCollection messages = null;
        try
        {

            #region Execute Command
            // Check connection
            ExecCommand(port,"AT", 300, "No phone connected");
            // Use message format "Text mode"
            ExecCommand(port,"AT+CMGF=1", 300, "Failed to set message format.");
            // Use character set "PCCP437"
            **ExecCommand(port, "AT+CSCS="UCS2"", 300, "Failed to set character set.")**;
            // Select SIM storage
            ExecCommand(port,"AT+CPMS="SM"", 300, "Failed to select message storage.");
            // Read the messages
            string input = ExecCommand(port, p_strCommand, 5000, "Failed to read the messages.");
            #endregion

            #region Parse messages
            messages = ParseMessages(input);
            #endregion

        }
        catch (Exception ex)
        {
            throw ex;
        }

        if (messages != null)
            return messages;
        else
            return null;    

    }

推荐答案

请注意，AT+CSCS 仅影响命令和响应的 string 参数.在AT+CMGL的情况下，消息的内容不是字符串，而是格式.有关该格式的更多详细信息，请参阅 27.005 规范，它有点复杂(只关注第一个SMS部分，忽略第二个CBS部分)

Notice that AT+CSCS only affects string parameters to commands and responses. In the case of AT+CMGL the content of the message is not a string, but a <data> format. See the 27.005 specification for more details on that format, it is a bit complicated (only pay attention to the first In the case of SMS part, ignore the second In the case of CBS part).

但它的简短版本是，对于 UCS-2，您将获得十六进制编码的数据(例如，两个字符 '2' 和 'A' 代表一个字节值为 0x2A(ASCII/UTF-8 字符 '*')).因此，您应该将接收到的 4 个和 4 个字节解码为 UCS-2 字符中 16 位的十六进制编码.

But the short version of it is that for UCS-2 you will get the data hex encoded (e.g. two characters '2' and 'A' represents one byte with value 0x2A (ASCII/UTF-8 character '*')). So you should decode 4 and 4 received bytes as the hex encoding of the 16 bits in a UCS-2 character.

因此解码为字节数组，然后转换为字符串，请参阅 Appleman1234 的 answer(他的答案没有解决核心问题，即十六进制解码).

So decode into a byte array and then convert to string, see Appleman1234's answer for that (his answer does not address the core issue, namely the hex decoding).

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