# 后端开发 [访问权限](Fang%20Wen%20Quan%20Xian.html) [数据权限](Shu%20Ju%20Quan%20Xian.html) [公共函数库](Gong%20Gong%20Han%20Shu%20Ku.html) [用户数据共享](Yong%20Hu%20Shu%20Ju%20Gong%20Xiang.html) [组织机构操作](org.html) [公共数据词典](Gong%20Gong%20Shu%20Ju%20Ci%20Dian.html) [消息推送](Xiao%20Xi%20Tui%20Song.html) [二维码](Er%20Wei%20Ma.html) [文件压缩与解压](Wen%20Jian%20Ya%20Suo%20Yu%20Jie%20Ya.html) [文档转换](Wen%20Dang%20Zhuan%20Huan.html)