파이썬 강의 #06.ipynb

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  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 휴대폰 번호, 유효성 검사"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
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   "source": [
    "import re\n",
    "\n",
    "def validate_phone_number(number):\n",
    "    pattern = r'01[016789][1-9]\\d{6,7}'\n",
    "    if re.match(pattern, number):\n",
    "        return True\n",
    "    return False"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": false
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   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "validate_phone_number('01012341234')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": false
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "validate_phone_number('010123412')"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
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   "source": [
    "## numbers"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "collapsed": true
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   "outputs": [],
   "source": [
    "numbers = \"10/20/30/40/50/60/1231231312//1231231241231/1231313\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {
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    {
     "data": {
      "text/plain": [
       "1232463704066"
      ]
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     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "result = 0\n",
    "for number in numbers.split('/'):\n",
    "    result += int(number or 0)\n",
    "result"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
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    {
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      "text/plain": [
       "1232463704066"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "sum(map(int, filter(lambda number: number, numbers.split('/'))))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {
    "collapsed": false
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   "outputs": [
    {
     "data": {
      "text/plain": [
       "1232463704066"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "sum(int(number) for number in numbers.split('/') if number)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {
    "collapsed": false
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   "outputs": [
    {
     "data": {
      "text/plain": [
       "1232463704066"
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "sum(int(number or 0) for number in numbers.split('/'))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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