When we get to the spell checking, the dictionary assignment, when you're actually manipulating text files, maybe writing some output, these lower level details that actually empower you to solve problems properly.

当你检查拼写时，字典查询，当你熟练运用这些文本文件时，可能是写一些输出文本，这些小细节,恐怕可以帮助你合理解决问题。

哈佛公开课 - 计算机科学课程节选