4장.ipynb

{
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  "metadata": {
    "colab": {
      "name": "4장.ipynb",
      "provenance": [],
      "authorship_tag": "ABX9TyMpiCa4KdPyFdnt0/RRD386",
      "include_colab_link": true
    },
    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
    },
    "language_info": {
      "name": "python"
    }
  },
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "view-in-github",
        "colab_type": "text"
      },
      "source": [
        "<a href=\"https://colab.research.google.com/github/yohan1234/jump_to_python/blob/main/4%EC%9E%A5.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "id": "_IbF04R_g8AW"
      },
      "outputs": [],
      "source": [
        "def add(a, b):\n",
        "  return a + b"
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a = 3\n",
        "b = 4\n",
        "c = add(a, b)\n",
        "print(c)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "4mphilAthGT4",
        "outputId": "295319b5-721b-4148-ca6e-b96f8407ce45"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "7\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "result = add(a=3, b=7)\n",
        "print(result)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "ouhF7Moahbdm",
        "outputId": "138fc856-865a-49ff-aa04-a8338b020db9"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "10\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "def add_many(*args):\n",
        "  result = 0\n",
        "  for i in args:\n",
        "    result = result + i\n",
        "  return result"
      ],
      "metadata": {
        "id": "h-L0L5cZipL3"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "result = add_many(1, 2, 3, 4, 5)\n",
        "print(result)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "kZi74d11i97v",
        "outputId": "2ee16bc3-7c90-46d5-fa29-5b822fe25e01"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "15\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "def add_mul(choice, *args):\n",
        "  if choice == \"add\":\n",
        "    result = 0\n",
        "    for i in args:\n",
        "      result = result + i\n",
        "  elif choice == \"mul\":\n",
        "    result = 1\n",
        "    for i in args:\n",
        "      result = result * i\n",
        "  return result\n"
      ],
      "metadata": {
        "id": "JGxgimp8jie2"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "result = add_mul('add', 1, 2, 3, 4, 5)\n",
        "print(result)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "ZqEfokeukYB6",
        "outputId": "9e9f245b-3b03-4188-8e95-5c1d970130ff"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "15\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "def say_myself(name, old, man=True):\n",
        "  print(\"나의 이름은 %s 입니다.\" % name)\n",
        "  print(\"나이는 %d살 입니다.\" % old)\n",
        "  if man:\n",
        "    print(\"남자 입니다.\")\n",
        "  else:\n",
        "    print(\"여자 입니다.\")"
      ],
      "metadata": {
        "id": "HXHpokIik7jD"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "say_myself(\"박응용\", 27)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "lFS7KWW9maUR",
        "outputId": "5ed90b9e-dad2-44a9-df6f-b0031e72b02a"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "나의 이름은 박응용 입니다.\n",
            "나이는 27살 입니다.\n",
            "남자 입니다.\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a = 1\n",
        "def vartest(a):\n",
        "  a = a + 1\n",
        "\n",
        "vartest(a)\n",
        "print(a)\n",
        "print(vartest(a))"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "PRf4osSJmffW",
        "outputId": "104e7e67-a356-4481-d393-595d79ed99bf"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "1\n",
            "None\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "add = lambda a, b: a+ b\n",
        "result = add(3, 4)\n",
        "print(result)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "6B9Zv73snAxQ",
        "outputId": "750c9bb1-b30a-4c19-aed2-1858b1a9f63d"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "7\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a = input()\n",
        "Life is too short, you need python\n",
        "a"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 139
        },
        "id": "xAg7wKBFoFy2",
        "outputId": "663418ca-f1a3-4aa6-a833-a884d625de8b"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-44-0df88864c4ff>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    a = input(Life is too short, you need python)\u001b[0m\n\u001b[0m                              ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "number = input(\"숫자를 입력하세요:\")"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "zkYs3webpCoi",
        "outputId": "1b636b01-ba91-4cc8-b590-ee03783baf49"
      },
      "execution_count": null,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": [
            "숫자를 입력하세요:3\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "print(number)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "ngJ7VR9lpMT9",
        "outputId": "903ddf8f-2dd3-4ae5-c89b-08165bd2237e"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "3\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a = 123\n",
        "print(a)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "f7dzk1WXpUjo",
        "outputId": "c3f46c7c-7685-4c18-9a4e-6bcfdd276899"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "123\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a = 'Python'\n",
        "print(a)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "e3KlnJlRpa4U",
        "outputId": "c922eb14-2c70-4e3f-c6f9-e202763beab4"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Python\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "print(\"Life\"\"is\"\"too short\")"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "FXnic4X3pem-",
        "outputId": "871b9718-ce7c-41fc-8673-cac2c3c47d18"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Lifeistooshort\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "for i in range(10):\n",
        "  print(i, end=' ')"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "nTdd4bY4plKL",
        "outputId": "24151367-e113-4187-d92f-5449dd553cff"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "0 1 2 3 4 5 6 7 8 9 "
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "f = open(\"새파일.txt\", 'w')"
      ],
      "metadata": {
        "id": "7YoLQxojp4r0"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "f.close()"
      ],
      "metadata": {
        "id": "9KszDPJip9_r"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "f = open(\"C:/doit/새파일.txt\", 'w')\n",
        "for i in range(1, 11):\n",
        "  data = \"%d번째 줄입니다.\\n\" % i\n",
        "  f.write(data)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 232
        },
        "id": "FhpA0ioYp_La",
        "outputId": "3b7637e0-c522-4556-ea20-1d78d408cdd9"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "error",
          "ename": "FileNotFoundError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mFileNotFoundError\u001b[0m                         Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-59-0c444d8f36df>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mf\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mopen\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"C:/doit/새파일.txt\"\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;34m'w'\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      2\u001b[0m \u001b[0;32mfor\u001b[0m \u001b[0mi\u001b[0m \u001b[0;32min\u001b[0m \u001b[0mrange\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m1\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0;36m11\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      3\u001b[0m   \u001b[0mdata\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m\"%d번째 줄입니다.\\n\"\u001b[0m \u001b[0;34m%\u001b[0m \u001b[0mi\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      4\u001b[0m   \u001b[0mf\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mwrite\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mdata\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;31mFileNotFoundError\u001b[0m: [Errno 2] No such file or directory: 'C:/doit/새파일.txt'"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        ""
      ],
      "metadata": {
        "id": "SrrfAL4_qnUF"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        ""
      ],
      "metadata": {
        "id": "vqG3FBziqk3S"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        ""
      ],
      "metadata": {
        "id": "3GaWZiBtqS_1"
      },
      "execution_count": null,
      "outputs": []
    }
  ]
}