由官方的duilib( https://github.com/duilib/duilib ) 复制过来的，仅为了个人学习使用。可以使用vs2008打开，新增一些学习测试用的demo，修改了一些bug和不太好用的地方，代码也会同步官方的后续修改。
log4cplus is a simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. It is modelled after the Java log4j API.
A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware.
