2.2.3 Mermaid 类图（classDiagram）
The US men’s and women’s teams claimed titles at the Winter Games this past week. The warm fuzzy feelings didn’t last long
，这一点在WPS下载最新地址中也有详细论述
spoof(hookedAppend, origAppend);
Is it possible for Blockchain to be hacked?Yes, blockchain can be theoretically hacked, but it is a complicated task to be achieved. A network of users constantly reviews it, which makes hacking the blockchain difficult.