将汉字转换为gb2312编码

//将汉字转换成GB2312编码
        private byte[] StringToBytes(string TheString)
        {
            Encoding fromEcoding = Encoding.GetEncoding("UTF-8");//返回utf-8的编码
            Encoding toEcoding = Encoding.GetEncoding("gb2312");
            byte[] fromBytes = fromEcoding.GetBytes(TheString);
            byte[] tobytes = Encoding.Convert(fromEcoding, toEcoding, fromBytes);//将字节数组从一种编码转换为另一种编码
            return tobytes;

        }
        //将GB2312编码转换成汉字
        private string BytesToString(byte[] bytes)
        {
            string myString;
            Encoding fromEcoding = Encoding.GetEncoding("gb2312");
            Encoding toEcoding = Encoding.GetEncoding("UTF-8");
            byte[] toBytes = Encoding.Convert(fromEcoding, toEcoding, bytes);
            myString = toEcoding.GetString(toBytes);//将字节数组解码成字符串
            return myString;
        }

注意，如果报错

“'gb2312' is not a supported encoding name. For information on defining a custom encoding, see the documentation for the Encoding.RegisterProvider method. Arg_ParamName_Name”

在nuget中安装System.Text.CodePages，在需要转码的地方插入如下代码：

//将汉字转换成GB2312编码
        private static byte[] StringToBytes(string TheString)
        {
　　　　　　　　//插入此代码
            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);

            Encoding fromEcoding = Encoding.GetEncoding("UTF-8");//返回utf-8的编码
            Encoding toEcoding = Encoding.GetEncoding("gb2312");
            byte[] fromBytes = fromEcoding.GetBytes(TheString);
            byte[] tobytes = Encoding.Convert(fromEcoding, toEcoding, fromBytes);//将字节数组从一种编码转换为另一种编码
            return tobytes;

        }

 

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:“'gb2312' is not a supported encoding name. For information on defining a custom encoding, see the documentation for the Encoding.RegisterProvider method. Arg_ParamName_Name”