程序员的第一篇博客，自然是hello world。

 1                   _    _  ______  _       _       ____  
 2                  | |  | ||  ____|| |     | |     / __ \ 
 3                  | |__| || |__   | |     | |    | |  | |
 4                  |  __  ||  __|  | |     | |    | |  | |
 5                  | |  | || |____ | |____ | |____| |__| |
 6                  |_|  |_||______||______||______|\____/ 
 7                                                             
 8               __          __ ____   _____   _       _____  
 9               \ \        / // __ \ |  __ \ | |     |  __ \ 
10                \ \  /\  / /| |  | || |__) || |     | |  | |
11                 \ \/  \/ / | |  | ||  _  / | |     | |  | |
12                  \  /\  /  | |__| || | \ \ | |____ | |__| |
13                   \/  \/    \____/ |_|  \_\|______||_____/ 
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