ch6_exercises_py16.ipynb

{
  "nbformat": 4,
  "nbformat_minor": 0,
  "metadata": {
    "colab": {
      "name": "ch6_exercises_py16.ipynb",
      "provenance": [],
      "collapsed_sections": [],
      "include_colab_link": true
    },
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
    }
  },
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "view-in-github",
        "colab_type": "text"
      },
      "source": [
        "<a href=\"https://colab.research.google.com/github/Kim-Hyerin/Py16/blob/master/ch6_exercises_py16.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "3kZerIrSTlgE",
        "colab_type": "text"
      },
      "source": [
        "## ch6_exercises_py16.ipynb"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "DnuqEm4gTtCs",
        "colab_type": "text"
      },
      "source": [
        "## Q1.\n",
        "> 내가 프로그램을 만들 수 있을까?"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "DMkTU_qjTvr0",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "a6cfc243-5185-4351-a22b-1115f55ad27c"
      },
      "source": [
        "# 구구단 출력1\n",
        "\n",
        "def GuGu0(n):\n",
        "    result = []\n",
        "    result.append(n * 1)\n",
        "    result.append(n * 2)\n",
        "    result.append(n * 3)\n",
        "    result.append(n * 4)\n",
        "    result.append(n * 5)\n",
        "    result.append(n * 6)\n",
        "    result.append(n * 7)\n",
        "    result.append(n * 8)\n",
        "    result.append(n * 9)\n",
        "    return result\n",
        "\n",
        "print(GuGu0(2))"
      ],
      "execution_count": 8,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "[2, 4, 6, 8, 10, 12, 14, 16, 18]\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "ZFkuWVzlTycj",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "4d916552-2449-4bce-b9bc-fb1b93922993"
      },
      "source": [
        "# 구구단 출력2\n",
        " \n",
        "def GuGu(n):\n",
        "    result = []\n",
        "    i = 1\n",
        "    while i < 10:\n",
        "        result.append(n * i)\n",
        "        i = i + 1\n",
        "    return result\n",
        " \n",
        "print(GuGu(2))"
      ],
      "execution_count": 9,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "[2, 4, 6, 8, 10, 12, 14, 16, 18]\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "WQcEHCU3T03j",
        "colab_type": "text"
      },
      "source": [
        "## Q2.\n",
        "> 100 미만의 자연수에서 3의 배수와 5의 배수의 총합을 구하라."
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "vEPhEUreT3g7",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "09b2cf1a-5677-43a9-f399-6ef2bd97f6ce"
      },
      "source": [
        "result = 0\n",
        "for n in range(1, 100):\n",
        "    if n % 3 == 0 or n % 5 == 0:\n",
        "        result += n\n",
        "print(result)"
      ],
      "execution_count": 10,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "2318\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "pglqCOBQT6BC",
        "colab_type": "text"
      },
      "source": [
        "## Q3.\n",
        ">  게시판 페이징하기"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "hScj1QLaT8Fy",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 89
        },
        "outputId": "e7d1faa5-70e0-43b2-e9fb-47176cd4ccbb"
      },
      "source": [
        "# 한 페이지에서 보여 줄 게시물 수가 최대 10일 경우, 총 페이지 수를 출력하는 프로그램을 만들어보자.\n",
        "\n",
        "def getTotalPage(m, n):\n",
        "    if m % n == 0:\n",
        "        return m // n\n",
        "    else:\n",
        "        return m // n + 1\n",
        "\n",
        "print(getTotalPage(5, 10))\n",
        "print(getTotalPage(15, 10))\n",
        "print(getTotalPage(25, 10))\n",
        "print(getTotalPage(30, 10))"
      ],
      "execution_count": 11,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "1\n",
            "2\n",
            "3\n",
            "3\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "W8-5FKZaSQfV",
        "colab_type": "text"
      },
      "source": [
        "## Q4.\n",
        "> 간단한 메모장 만들기"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "NeoZYEh1SV0c",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "e2ca0741-d1be-444c-9fae-5bf9098cd599"
      },
      "source": [
        "ls"
      ],
      "execution_count": 1,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "\u001b[0m\u001b[01;34msample_data\u001b[0m/\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "o82edSgJSiMD",
        "colab_type": "code",
        "colab": {}
      },
      "source": [
        "mkdir 'doit'"
      ],
      "execution_count": 0,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "QbId3SI3SoyL",
        "colab_type": "code",
        "colab": {}
      },
      "source": [
        "mv memo.py ./doit/"
      ],
      "execution_count": 0,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "QL54tqVOSuAj",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "dfbcee26-8d25-4e35-e47e-137ea43cd6c4"
      },
      "source": [
        "cd doit"
      ],
      "execution_count": 4,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "/content/doit\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "-ZyOl___SyJk",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "5279d8fb-c8c0-4466-f8d2-508ab25524e1"
      },
      "source": [
        "pwd"
      ],
      "execution_count": 5,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "'/content/doit'"
            ]
          },
          "metadata": {
            "tags": []
          },
          "execution_count": 5
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "lAJWTn8pS0Fb",
        "colab_type": "code",
        "colab": {}
      },
      "source": [
        "!python memo.py -a \"Py coding is fun!!\""
      ],
      "execution_count": 0,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "UqlanIbNS-4L",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 53
        },
        "outputId": "c2cc8abb-56fc-4613-bb28-958ea6dbf1f7"
      },
      "source": [
        "!python memo.py -v"
      ],
      "execution_count": 7,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "Py coding is fun!!\n",
            "\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "Oi8CUwMKUD38",
        "colab_type": "text"
      },
      "source": [
        "## Q5.\n",
        ">  탭을 4개의 공백으로 바꾸기"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "zwpXMWfUdKSX",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "d0a53933-1243-4d32-806f-1da015bbf467"
      },
      "source": [
        "cd .."
      ],
      "execution_count": 12,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "/content\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "P17hulZ3dXyE",
        "colab_type": "code",
        "colab": {}
      },
      "source": [
        "mv a.txt ./doit/"
      ],
      "execution_count": 0,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "RzU1p92lddqU",
        "colab_type": "code",
        "colab": {}
      },
      "source": [
        "mv tabto4.py ./doit/"
      ],
      "execution_count": 0,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "OVGx6dWodhUc",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "c37745dc-444c-41ae-a4d4-fbbb71a20eb7"
      },
      "source": [
        "cd ./doit/"
      ],
      "execution_count": 15,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "/content/doit\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "R01Lezoqdm5M",
        "colab_type": "code",
        "colab": {}
      },
      "source": [
        "!python tabto4.py a.txt b.txt"
      ],
      "execution_count": 0,
      "outputs": []
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "vB-kER5cUEyq",
        "colab_type": "text"
      },
      "source": [
        "## Q6.\n",
        ">  하위 디렉터리 검색하기"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "2p2UpT3Qemhd",
        "colab_type": "code",
        "colab": {}
      },
      "source": [
        "'''\n",
        "import os\n",
        "\n",
        "def search(dirname):\n",
        "    try:\n",
        "        filenames = os.listdir(dirname)\n",
        "        for filename in filenames:\n",
        "            full_filename = os.path.join(dirname, filename)\n",
        "            if os.path.isdir(full_filename):\n",
        "                search(full_filename)\n",
        "            else:\n",
        "                ext = os.path.splitext(full_filename)[-1]\n",
        "                if ext == '.py': \n",
        "                    print(full_filename)\n",
        "    except PermissionError:\n",
        "        pass\n",
        "\n",
        "search(\"./\")\n",
        "'''"
      ],
      "execution_count": 0,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "PeoS7CKNexsd",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "dd64d65b-1b48-48d1-9bc6-a544d5f8d77e"
      },
      "source": [
        "cd .."
      ],
      "execution_count": 18,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "/content\n"
          ],
          "name": "stdout"
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "OSmgPA8Ae067",
        "colab_type": "code",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 71
        },
        "outputId": "8958e573-4398-4237-832e-7b90164c858b"
      },
      "source": [
        "!python sub_dir_search.py"
      ],
      "execution_count": 20,
      "outputs": [
        {
          "output_type": "stream",
          "text": [
            "./sub_dir_search.py\n",
            "./doit/memo.py\n",
            "./doit/tabto4.py\n"
          ],
          "name": "stdout"
        }
      ]
    }
  ]
}