part3_numbers.ipynb

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    "## 3.1 布尔值 Bool\n",
    "### bool()函数\n",
    "输入：任何值      \n",
    "输出：等价的布尔值       "
   ],
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    "bool(True)"
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   "cell_type": "markdown",
   "source": [
    "## 3.2 整数 Int "
   ],
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    {
     "ename": "SyntaxError",
     "evalue": "leading zeros in decimal integer literals are not permitted; use an 0o prefix for octal integers (2610041547.py, line 1)",
     "output_type": "error",
     "traceback": [
      "\u001B[0;36m  Cell \u001B[0;32mIn[9], line 1\u001B[0;36m\u001B[0m\n\u001B[0;31m    01\u001B[0m\n\u001B[0m    ^\u001B[0m\n\u001B[0;31mSyntaxError\u001B[0m\u001B[0;31m:\u001B[0m leading zeros in decimal integer literals are not permitted; use an 0o prefix for octal integers\n"
     ]
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   "source": [
    "01"
   ],
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    "+123"
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    "-123"
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     "execution_count": 12,
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   "source": [
    "1_2_3"
   ],
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   "source": [
    "### 3.2.1 整数运算\n",
    "/  浮点数除法    \n",
    "// 整数除法      \n",
    "** 求幂   "
   ],
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   "execution_count": 13,
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    {
     "data": {
      "text/plain": "2.5"
     },
     "execution_count": 13,
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   "source": [
    "5/2"
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   "execution_count": 14,
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    {
     "data": {
      "text/plain": "2"
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    "5//2"
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   "id": "72146367e467f4e2"
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   "cell_type": "code",
   "execution_count": 15,
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    {
     "data": {
      "text/plain": "25"
     },
     "execution_count": 15,
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   "source": [
    "5**2"
   ],
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   "id": "2938c1951fdb3816"
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  {
   "cell_type": "markdown",
   "source": [
    "### 3.2.2 整数和变量"
   ],
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    {
     "data": {
      "text/plain": "92"
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     "execution_count": 16,
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   "source": [
    "a = 95\n",
    "a = a - 3\n",
    "a"
   ],
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   "id": "b43a3586d29cff31"
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   "execution_count": 17,
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    {
     "data": {
      "text/plain": "92"
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     "execution_count": 17,
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   "source": [
    "a = 95\n",
    "a -= 3\n",
    "a"
   ],
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   "source": [
    " ### 3.2.3 基数\n",
    "二进制：0b 0B   \n",
    "八进制：0o 0O   \n",
    "十六进制：0x 0X  "
   ],
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    {
     "data": {
      "text/plain": "10"
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     "execution_count": 19,
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    "10"
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   "id": "876cb069b7a7cb4e"
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    {
     "data": {
      "text/plain": "2"
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     "execution_count": 20,
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   "source": [
    "0b10"
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   "id": "8539cd28855492cb"
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  {
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   "execution_count": 21,
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    {
     "data": {
      "text/plain": "8"
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     "execution_count": 21,
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   "source": [
    "0o10"
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   "id": "97b8f0cda2e696dc"
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   "execution_count": 22,
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    {
     "data": {
      "text/plain": "16"
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     "execution_count": 22,
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  {
   "cell_type": "code",
   "execution_count": 23,
   "outputs": [
    {
     "data": {
      "text/plain": "'A'"
     },
     "execution_count": 23,
     "metadata": {},
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    }
   ],
   "source": [
    "chr(65)"
   ],
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   "id": "ceb87f7e7872d565"
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    {
     "data": {
      "text/plain": "65"
     },
     "execution_count": 24,
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   ],
   "source": [
    "ord(\"A\")"
   ],
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   "source": [
    "### 3.2.3 类型转换\n",
    "int()  \n",
    "float()  \n",
    "str()  \n",
    "tuple() ：转换为 元组  \n",
    "list()  ：转换为 列表  \n",
    "set()   ：转换为 集合  \n",
    "dict()  ：转换为 字典  \n",
    "  \n",
    "chr()  \n",
    "ord()  "
   ],
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    {
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      "text/plain": "3"
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   "source": [
    "True+2"
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