笔者认真拜读文[1],获益匪浅,笔者也对这个问题进行研究,有了一点新的发现,同时对文[1]中一处内容,有不同的观点,在这里一并提出,不当之处,恳请指正.1文[1]中指出“不难证明,若f(x)为n次迭代还原函数,则f[2](x),f[3](x),…,f[n](x)也为n次迭代还原函数”,事实上,此结论不成立,? The author earnestly read the text [1] and benefited a lot from it. The author also studied this issue and made some new discoveries. At the same time, there is a different point of view on the content of the article [1], which is proposed here. Inappropriately, ask for correction. In [1], it is not difficult to prove that if f(x) is an iterative reduction function for n times, then f[2](x), f[3](x),..., f[n](x) is also an iterative function for n iterations.” In fact, this conclusion is not true.