传智播客OA项目源码相当不错的项目，里面包含很多知识点-Chuan Chi podcast OA project pretty good source project, which contains a lot of knowledge points

公文签收系统(政府版) 智源软件 网络上找了的开源软件，还比较好用-The documents receipt system (Government Edition) Chi-source software on the network to find the open source software, but also relatively easy to use