of;
Computer,;
Nanjing;
University;
of;
Posts;
and;
Telecommunications,;
Nanjing;
210003,;
China;
Key;
Laboratory;
for;
Novel;
Software;
Technology,;
Nanjing;
University,;
Nanjing;
210093;
China;
放置算法; 数据网格; P2P; 副本; 基础; 最大完工时间; DFA; 最低成本;