中文摘要：

在本文中，给出经典等距理论领域中的两个注记．关于FulviaSkof的结果，用于赋范空间的严格凸性的研究，用Volt定理嗍给出这个著名结果的推广，并且我们的证明比原证明更短．此外，指出实Banach空间上的逼近满等距算子和有限维空间上的一般等距算子都是线性的，从而知道满射条件是本质的．

英文摘要：

In this paper, we give two notes in the field of classical isometric theory. In connection with the result of Fulvia Skof, which is useful in the study of the strict convexity of normed spaces,we give a generalization of the above known result by using Vogt＇s theorem , and the proof is shorter than the original one. Moreover, we point out that both the approximate surjective isomet- ric operators on real Banach spaces and the general isometries on finite dimensional spaces are line- ar,and it is observed by these that the surjectivity assumption is essential.