c++ - 文件处理文本文件或二进制文件

Question

用C++做图书管理系统项目，哪种文件处理技术比较好。正如在两者中一样，一切都可以通过更新和删除输入的记录来完成，但这是首选。

1. 文本文件

2. 二进制文件

Answer 1

我过去做过同样的项目。我选择了文本文件格式，所以我更喜欢文本文件，因为您可以读取存储的数据。我认为在性能方面没有区别。

编辑:好的，正如 stefaanv 提到的那样，显然存在轻微的性能差异。

Binary format typically uses fewer CPU cycles. However that is relevant only if your application is CPU bound and you intend to do serialization and/or unserialization on an inner loop/bottleneck. Remember: 90% of the CPU time is spent in 10% of the code, which means there won’t be any practical performance benefit unless your “CPU meter” is pegged at 100%, and your serialization and/or unserialization code is consuming a healthy portion of that 100%.