The results indicate that the amplitude of the initial solitary wave will decrease exponentially with respect to time t when s > 0 and will increase exponentially when s < 0 . some new soliton ( s ) will be generated in the latter case 结果表明当> 0时,初始孤立波的振幅随时间指数式衰减;当< 0时,初始孤立波的振幅随时间指数式增长,并有新的孤立子产生。