before starting clone nim_duilib: https://github.com/netease-im/NIM_Duilib_Framework 迁出github的源码即可. 方法有两种: A: 使用 Github Desktop 迁出: B: 使用命令 git clone https://github.com/netease-im/NIM_Duilib_Framework install VS2017: you could get the install package