CSx101_Lab2_1.ipynb

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      "name": "CSx101_Lab2_1.ipynb",
      "provenance": [],
      "collapsed_sections": [],
      "include_colab_link": true
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    "kernelspec": {
      "name": "python3",
      "display_name": "Python 3"
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  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "view-in-github",
        "colab_type": "text"
      },
      "source": [
        "<a href=\"https://colab.research.google.com/github/viettd14/CSx101-A1-2021-02/blob/main/CSx101_Lab2_1.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "qYjoagGcuYmq"
      },
      "source": [
        "# CSx101 - TƯ DUY LẬP TRÌNH VỚI PYTHON\n",
        "\n",
        "Lớp CSx101-A1"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "9CUHdHZe1Q2F"
      },
      "source": [
        "## Chạy các câu lệnh dưới đây để kiểm tra xem có đúng cú pháp không"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "75OHdlAkzRRW",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 188
        },
        "outputId": "98d9e418-d1bd-44b8-8c1b-9f9700b558a5"
      },
      "source": [
        " 3 + \"USD\"\n",
        " "
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "error",
          "ename": "TypeError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
            "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
            "\u001b[0;32m<ipython-input-1-2529dddefde9>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0;36m3\u001b[0m \u001b[0;34m+\u001b[0m \u001b[0;34m\"USD\"\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;34m\u001b[0m\u001b[0m\n",
            "\u001b[0;31mTypeError\u001b[0m: unsupported operand type(s) for +: 'int' and 'str'"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "Rk-3yHVazWf6",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "1001f559-136a-4657-c0fa-f6a8a45395b1"
      },
      "source": [
        "3+2"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "5"
            ]
          },
          "metadata": {},
          "execution_count": 2
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "QfjAATq7zZLY",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "00b41bf3-de32-443a-89fe-dbdad7069a2d"
      },
      "source": [
        "\"3\" + \"USD\"\u001c\u001c"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'3USD'"
            ]
          },
          "metadata": {},
          "execution_count": 3
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "leCn2xFwubkR"
      },
      "source": [
        "## Kiểm tra kiểu dữ liệu"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "N2uyMnza1Bkc",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "be42d932-af7d-41ed-f758-71cf63ba4975"
      },
      "source": [
        "type(3)"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "int"
            ]
          },
          "metadata": {},
          "execution_count": 4
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "oz59rx9g1Fx6",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "47de4018-98d4-4370-9faf-99ae599fdeb3"
      },
      "source": [
        "type(3.0)"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "float"
            ]
          },
          "metadata": {},
          "execution_count": 5
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "_DieJosU1IG3",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "b1db27bd-fe7e-4bd0-93ca-c48eb602859f"
      },
      "source": [
        "type(\"3\")\u001c"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "str"
            ]
          },
          "metadata": {},
          "execution_count": 6
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "CMIVvurg2OiU"
      },
      "source": [
        "## Chuyển kiểu dữ liệu (typecast)"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "-3ZMFj3r2TgX",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "1e9a4ad0-432b-4b16-bfc3-4443951eeb4c"
      },
      "source": [
        "int(3.5)"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "3"
            ]
          },
          "metadata": {},
          "execution_count": 7
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "zfp14kqU2Vkq",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 35
        },
        "outputId": "232a16b3-d221-428a-d7b5-519ae04cf499"
      },
      "source": [
        "str(\"3.5\"\u001c)"
      ],
      "execution_count": 2,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "application/vnd.google.colaboratory.intrinsic+json": {
              "type": "string"
            },
            "text/plain": [
              "'3.5'"
            ]
          },
          "metadata": {},
          "execution_count": 2
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "cCyfKs0q4h-X"
      },
      "source": [
        "## Kiểm tra cách đặt tên biến có hợp lệ"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "1pfCY9w04nCN"
      },
      "source": [
        "balance = 5"
      ],
      "execution_count": 1,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "t2h69qZ34uwA"
      },
      "source": [
        "_balance = 5"
      ],
      "execution_count": 3,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "GFsLuPKH4zt9"
      },
      "source": [
        "current_balance = 5"
      ],
      "execution_count": 4,
      "outputs": []
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "k7TOT7Y942bm",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 132
        },
        "outputId": "def3aab4-2147-4bb7-9ed4-4ee4815aa337"
      },
      "source": [
        "current balance = 5"
      ],
      "execution_count": 5,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-5-5b4c4aa77f7f>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    current balance = 5\u001b[0m\n\u001b[0m                  ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "JwuKGH6R5Ni_",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 134
        },
        "outputId": "440a0a61-eeda-4457-f21f-54f5beea7817"
      },
      "source": [
        "'current_balance' = 5\u001c"
      ],
      "execution_count": null,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-13-4a788a05e45f>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    'current_balance' = 5\u001b[0m\n\u001b[0m                         ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m can't assign to literal\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "mvNL4sL35Uzy",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 132
        },
        "outputId": "4e3e6b4e-3ce7-48e7-9570-3be2ba875342"
      },
      "source": [
        "4balance = 5"
      ],
      "execution_count": 6,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-6-c7a1c4836d53>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    4balance = 5\u001b[0m\n\u001b[0m           ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "XyPwFwo35Yoj",
        "colab": {
          "base_uri": "https://localhost:8080/",
          "height": 132
        },
        "outputId": "1e4f244e-331b-4ec8-f5fc-899beb382f49"
      },
      "source": [
        "total_$um = 5"
      ],
      "execution_count": 7,
      "outputs": [
        {
          "output_type": "error",
          "ename": "SyntaxError",
          "evalue": "ignored",
          "traceback": [
            "\u001b[0;36m  File \u001b[0;32m\"<ipython-input-7-438221632b93>\"\u001b[0;36m, line \u001b[0;32m1\u001b[0m\n\u001b[0;31m    total_$um = 5\u001b[0m\n\u001b[0m          ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
          ]
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "ICRnRcNX527W"
      },
      "source": [
        "## Nhập dữ liệu từ thiết bị nhập chuẩn (bàn phím)"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "bXZT52gN568M",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "c127fb47-c67e-44cd-ef7f-d3358fdddd62"
      },
      "source": [
        "a = input()"
      ],
      "execution_count": 8,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": [
            "viet\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "MOFw7Bd7srX6",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "6d4a7974-8d4f-4f4e-cb74-7deb5bb752e7"
      },
      "source": [
        "a = input('Nhap so nguyen: '\u001c)"
      ],
      "execution_count": 9,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": [
            "Nhap so nguyen: 19\n"
          ]
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "IQX-kblX6FFL"
      },
      "source": [
        "## Xuất dữ liệu ra thiết bị xuất chuẩn (màn hình)"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "9-pRgu5w6P3w",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "c7548575-8d31-4a11-b226-3ff31bea35d6"
      },
      "source": [
        "a = 5\n",
        "print(a)\n",
        "print('Hello World')"
      ],
      "execution_count": 10,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "5\n",
            "Hello World\n"
          ]
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "B9JahOfd6Zj4"
      },
      "source": [
        "## Lệnh rẽ nhánh"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "bD8JdWgE6oU4",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "fba35afd-82fc-4ae3-b541-d9a1f84ee83b"
      },
      "source": [
        "x = int(input(\"Please enter an integer: \"))\n",
        "if x < 0:\n",
        "  x = 0\n",
        "  print('Negative changed to zero')\n",
        "elif x == 0:\n",
        "  print('Zero')\n",
        "elif x == 1:\n",
        "  print('Single')\n",
        "else:\n",
        "  print('More')"
      ],
      "execution_count": 11,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Please enter an integer: 12\n",
            "More\n"
          ]
        }
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
        "id": "ACrxB198aOq_"
      },
      "source": [
        "## Lệnh lặp"
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "k3GGvAunjE3U",
        "outputId": "38499807-7c95-459f-e5e2-d6b784b6f617"
      },
      "source": [
        "for i in range(5):\n",
        "  print(i)"
      ],
      "execution_count": 12,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "0\n",
            "1\n",
            "2\n",
            "3\n",
            "4\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "mNX5Dviki6o4",
        "outputId": "44c83616-3a63-4eb0-dffd-1d6cb2c485ef"
      },
      "source": [
        "words = ['cat', 'window', 'defenestrate']\n",
        "for w in words:\n",
        "  print(w, len(w))"
      ],
      "execution_count": 13,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "cat 3\n",
            "window 6\n",
            "defenestrate 12\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "id": "torDiDouiYYp",
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "outputId": "177f7875-00c9-4a80-e7d8-7e1e64512dc5"
      },
      "source": [
        "for num in range(2, 10):\n",
        "  if num % 2 == 0:\n",
        "    print(\"Found an even number\", num)\n",
        "    continue\n",
        "  print(\"Found an odd number\", num)"
      ],
      "execution_count": 14,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "Found an even number 2\n",
            "Found an odd number 3\n",
            "Found an even number 4\n",
            "Found an odd number 5\n",
            "Found an even number 6\n",
            "Found an odd number 7\n",
            "Found an even number 8\n",
            "Found an odd number 9\n"
          ]
        }
      ]
    },
    {
      "cell_type": "code",
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "fGvT4pXBjQof",
        "outputId": "85334875-b2d5-4893-9600-15666d9f61ef"
      },
      "source": [
        "a = ['Mary', 'had', 'a', 'little', 'lamb']\n",
        "for i in range(len(a)):\n",
        "  print(i, a[i])"
      ],
      "execution_count": 15,
      "outputs": [
        {
          "output_type": "stream",
          "name": "stdout",
          "text": [
            "0 Mary\n",
            "1 had\n",
            "2 a\n",
            "3 little\n",
            "4 lamb\n"
          ]
        }
      ]
    }
  ]
}