Hello world！
作为一个 IT 人氏，一点都不陌生吧
不论是程序员、seo、sem、网维、美工 都了解的
Hello world！
AI-generated summary
This is a blog post titled "Hello world!" written by ccw123ccw on January 1, 2011. It discusses various topics related to IT, including programming, SEO, SEM, web maintenance, and graphic design. The post has been viewed 9026 times and has 134 comments.