yolov8(2023年8月版本),已经下好yolov8s.pt和yolov8n.pt，需要创建的文件夹都以创建，方便大家不用再去GitHub下载 可以搭配该博客：https://blog.csdn.net/weixin_43366149/article/details/132206526?spm=1001.2014.3001.5501

YOLOv8预训练权重文件集合(YOLOv8n,YOLOv8s,YOLOv8m,YOLOv8l,YOLOv8x) YOLOv8 pretrained Detect models are shown here. Detect, Segment and Pose models are pretrained on the COCO dataset, while Classify models are pretrained on the ImageNet dataset. Model size (pixels) mAPval 50-95 Speed CPU ONNX (ms) Speed A100 TensorRT (ms) params (M) FLOPs (B) YOLOv8n 640 37.3 80.4 0.99 3.2 8.7 YOLOv8s 640 44.9 128.4 1.20 11.2 28.6 YOLOv8m 640 50.2 234.7 1.83 25.9 78.9 YOLOv8l 640 52.9 375.2 2.39 43.7 165.2 YOLOv8x 640 53

包含两个数据集：mnist160和imagenet100 三个权重参数文件：yolov8n-seg.pt，yolov8n-cls.pt，yolov8n-pose.pt

yolov8n.pt模型文件