python_正则代码.ipynb

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   "cell_type": "code",
   "execution_count": 4,
   "id": "9744e4da",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'你好，我先挂了'"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import re\n",
    "\n",
    "text = \"你好，我先挂了先挂了先挂了\"\n",
    "ans = re.sub(r'(.+?)\\1+', r'\\1', text)\n",
    "\n",
    "ans"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "25f8c9f6",
   "metadata": {},
   "outputs": [],
   "source": [
    "i"
   ]
  }
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