TNN: developed by Tencent Youtu Lab and Guangying Lab, a uniform deep learning inference framework for mobile、desktop and server. TNN is distinguished by several outstanding features, including its cross-platform capability, high performance, model compression and code pruning. Based on ncnn and Rapidnet, TNN further strengthens the support and performance optimization for mobile devices, and also draws on the advantages of good extensibility and high performance from existed open source efforts. TNN has been deployed in multiple Apps from Tencent, such as Mobile QQ, Weishi, Pitu, etc. Contributions are welcome to work in collaborative with us and make TNN a better framework.
1. 使用环境（environment）
OS Version:
2. Github版本
commit(optional):
3. 详细描述bug 情况 (Describe the bug) A clear and concise description of what the bug is.
original model： Caffe/ONNX/TensorFlow/TensorFlowLite （如果可以的话，请上传原始的模型文件）
4. 日志（Log）
5. 截图（Screenshots） If applicable, add screenshots to help explain your problem.