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In this paper, we define different ansatz equations to study two classes of high‐order nonlinear Schrödinger equations. The concrete forms of soliton solutions of these two classes of equations are obtained by using this equation. This paper briefly summarizes and explains the method used and applies it to two classes of specific equations. Finally, the concrete form of solutions and the necessary conditions for the existence of solutions are obtained, and pictures are added to assist understanding.

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