英语语法分析

The semantics of fopen require a complementary fclose.

fopen 的语义需要补充性的 fclose。

But remember that fopen only works with sequential datasets.

但是要记住，fopen只适用于序列化数据集。

Processing the return value of fopen is simpler and more accurate.

处理fopen的返回值更简单并且更准确。