为何一个人建了一堵墙，另一个人马上就想知道墙的另一边是什么？
Why is it that when one man builds a wall, the next man immediately needs to know what's on the other side?
In the end, we will remember not the words of our enemies, but the silence of our friends.
A business that doesn’t evolve with its customers will soon find itself irrelevant.
Leadership is about inspiring others to see the potential in what seems impossible.
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。