A specific instance is cited and analyzed by using single⁃step debugging of Matlab program. The debugging method is verified step by step. In comparison with operation results and actual computation results,the important status of the proposed method in program debugging is verified. The experimental results can be applied in complicated algorithm verification. The method has great practical significance.%针对单步调试法在程序调试中的重要作用，引用了一个具体的样例，进行Matlab程序单步调试法的分析并逐步检验，根据运行结果与实际计算结果的比较，验证了该方法在程序调试中的重要地位，并且该实验结果还可以应用于复杂的算法验证中，具有很大的实用意义。
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