_     _     __  __   ____  _____ _   _ _____ ___
| |   | |   |  \/  | | __ )| ____| \ | |_   _/ _ \
| |   | |   | |\/| | |  _ \|  _| |  \| | | || | | |
| |___| |___| |  | | | |_) | |___| |\  | | || |_| |
|_____|_____|_|  |_| |____/|_____|_| \_| |_| \___/
          

一口大小的智慧