添加：训练脚本

train.ipynb

@@ -0,0 +1,100 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import fastbook\n",
+    "fastbook.setup_book()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from fastbook import *\n",
+    "from fastai.vision.all import *\n",
+    "import os"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "pattern_get_class = re.compile(r'PetImages/(\\w+)/\\d+.jpg')\n",
+    "path = '../kagglecatsanddogs_5340/'\n",
+    "fnames = get_image_files(path)\n",
+    "\n",
+    "dls = ImageDataLoaders.from_path_re(\n",
+    "    path, fnames, pattern_get_class, valid_pct=0.2, seed=42, item_tfms=Resize(224))\n",
+    "dls.show_batch()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "learn = vision_learner(dls, resnet34, metrics=error_rate)\n",
+    "learn.fine_tune(1)\n",
+    "learn.export('model.pkl')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "path = 'cat.jpg'\n",
+    "img = PILImage.create(path)\n",
+    "img.to_thumb(192)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "is_cat,_,probs = learn.predict(img)\n",
+    "print(f\"Is this a cat?: {is_cat}.\")\n",
+    "print(f\"Probability it's a cat: {probs[0].item():.6f}\")"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "tesseract",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.15"
+  },
+  "orig_nbformat": 4,
+  "vscode": {
+   "interpreter": {
+    "hash": "c8334dffe72b6a881969c3515475442b0cf3f3c8c06d8151aebf952bb4134fbe"
+   }
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}