字符串是一个严格的数据结构，在传递字符串的任何地方都存在很多重复的过程。它是隐藏信息的理想工具。

No great artist ever sees things as they really are ,If he did he would cease to be a artist.

"Home is not a place, it's a feeling."

"The heart has its own geography, its own weather."

最终，我们记住的不是敌人的话语，而是朋友的沉默。