This paper based on the computer communication network,adds repacking scheme to NF algorithm,and presents two new algorithms: the last item repacking and each item repacking.

• 该文根据计算机通信网络中的实际应用,在NF算法基础上添加了置换功能,提出两种新的算法:最后物件置换算法和每个物件置换算法。