Department;
of;
Computer;
Science,;
Liaoning;
Normal;
University,;
Dalian;
116029,;
China;
Key;
Laboratory;
of;
Mathematics;
Mechanization,;
AMSS,;
the;
Chinese;
Aca~lemy;
of;
Sciences,;
Beijing;
100080,;
China;
Chaffee-Infante方程; 双线孤立子; 解题方法; 双周期解题方法;