Particularly, a third elliptic equation for the amplitude of NLS equation is obtained after using a special variable transformation, and two classes of new exact solutions are got again.

• 在求解过程中巧妙地引入一个变量代换后，又将非线性薛定谔方程化成了关于其振幅的第三种椭圆方程，从而又得到了该方程的2组新的精确解。