中文摘要：

利用待定系数法和比较系数法求解一类高阶常系数非齐次线性常微分方程的特解，得到求解该类问题的一般公式，并给出算例说明其应用．

英文摘要：

The special solution to a class of higher-order nonhomogeneous ordinary coefficient linear differential equations is investigated based on undetermined coefficient method and comparative coefficient way. The general formulas for solving this kind of problems are obtained. Some examples are given to show the practicability of the formulas.