修正压缩算法解析出错的问题

src/Transmit.cpp

@@ -51,7 +51,7 @@ namespace Transmission {
         if (!dataPackets.ParseFromArray(buff.get(), this->packSize))
             throw PrepareDataException("反序列化出错");
         this->packSize = -1;
-        switch (dataPackets.type()) {
+        switch (dataPackets.algorithm()) {
             //无压缩
             case CompressAlgorithm::NOT: {
                 auto pack = copyMem(dataPackets.data());