diff --git a/sprint3/Sprint 3 技术文档：手势识别与游戏控制.pptx b/sprint3/Sprint 3 技术文档：手势识别与游戏控制.pptx
new file mode 100644
index 0000000..715edba
Binary files /dev/null and b/sprint3/Sprint 3 技术文档：手势识别与游戏控制.pptx differ