Scut：从PackageReader分析客户端协议规则

        private void ParseData(byte[] data)
        {
            var paramBytes = SplitBuffer(data);
            RawParam = _encoding.GetString(paramBytes);

            ParseParamString(RawParam);
        }

        private byte[] SplitBuffer(byte[] data)
        {
            int paramIndex = MathUtils.IndexOf(data, EnterChar);    //以“\r\n\r\n”为分隔符
            byte[] paramBytes;
            if (paramIndex >= 0)     //如果有双换行符
            {
                paramBytes = new byte[paramIndex];
                Buffer.BlockCopy(data, 0, paramBytes, 0, paramBytes.Length);    　　　　　　　　　　　　　　　　 //将双换行符之前的数据复制出来
                InputStream = new byte[data.Length - paramIndex - EnterChar.Length];
                Buffer.BlockCopy(data, paramIndex + EnterChar.Length, InputStream, 0, InputStream.Length);   //将剩下的数据复制到 InputStream
            }
            else
            {
                paramBytes = data;
            }
            return paramBytes;
        }

        protected virtual void ParseParamString(string paramString)
        {
            string str = paramString;
            int index = paramString.IndexOf(PrefixParamChar, StringComparison.OrdinalIgnoreCase);    //找到协议前缀的位置
            if (index != -1)
            {
                if (paramString.StartsWith(PrefixRouteChar, StringComparison.OrdinalIgnoreCase))
                {
                    //ex: "route:xxx?d="
                    RouteName = paramString.Substring(PrefixRouteChar.Length, index - PrefixRouteChar.Length);
                }
                str = paramString.Substring(index + PrefixParamChar.Length);      //从协议前缀位置开始截断
                str = HttpUtility.UrlDecode(str) ?? "";

            }
            if (!str.Contains("="))
            {
                TraceLog.ReleaseWriteDebug("Parse request error:{0}", paramString);
                return;
            }

            var nvc = HttpUtility.ParseQueryString(str);   //根据 xx=xx&xx=xx 的规则取出数据
            foreach (var key in nvc.AllKeys)
            {
                if (string.IsNullOrEmpty(key)) continue;
                var val = nvc[key];

                if (PrefixRouteChar.StartsWith(key, StringComparison.OrdinalIgnoreCase))
                {
                    RouteName = val;
                    continue;
                }
                this[key] = val;
            }
        }