diff --git a/labs01/podstawy.ipynb b/labs01/podstawy.ipynb new file mode 100644 index 0000000..ed64bba --- /dev/null +++ b/labs01/podstawy.ipynb @@ -0,0 +1,601 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "# Ogólne wprowadzenie do Pythona\n", + "\n", + " \n", + "\n", + "## 13 maja 2017" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Hello Python!" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "print('Hello Python')\n", + "print(10) \n", + "print(3.14)\n", + "print(123456789 * 987654321)\n", + "print(10 ** 20)\n", + "print(12 ** (3 + 4 *(567 % 8) / 9))\n", + "print(\"PI\", \"jest prawie równe \", 3.1415)" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Komentarze\n", + " * Komentarze w Pythonie zaczynają się od '#',\n", + " * Komentarze nie są interpretowane." + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "print(\"Ala ma kota.\") # A to jest komentarz\n", + "# print(\"Nie chcę być wydrukowanym\")" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Zmienne\n", + " * case sensitive,\n", + " * brak deklaracji typu,\n", + " * do zmiennej można przypisać każdy obiekt" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "zmienna = \"Zmienna\"\n", + "zmienna = 10 ** 44\n", + "ocena_z_pythona = 5\n", + "pi = 3.1415\n", + "imie_prowadzacego = 'Tomek'\n", + "nazwisko_prowadzego = \"Dwojak\"\n", + "czy_lubie_pythona = True # False " + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "print(type(ocena_z_pythona))\n", + "print(type(pi))\n", + "print(type(imie_prowadzacego))\n", + "print(type(nazwisko_prowadzego))\n", + "print(type(czy_lubie_pythona))" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Listy\n", + " * W Pythonie nie ma tablic, są listy;\n", + " * Listy mogą przechowywać elementy różnych typów;\n", + " * Indeksowanie zaczyna się od 0." + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "slide" + } + }, + "outputs": [], + "source": [ + "pusta_lista = [] # albo równoważnie pusta_lista = list()\n", + "oceny = [5, 4, 3, 5, 5]\n", + "roznosci = [3.14, \"pi\", [\"pi\"], 3]\n", + "ciag_10_elem = range(10)\n", + "\n", + "print(\"ciąg:\", ciag_10_elem)\n", + "print(\"rożności:\", roznosci)" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Dodawanie i usuwanie elementów z listy" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "oceny.append(4) # Dodanie elementu na koniec\n", + "print(oceny)" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "oceny.extend([4,4,4]) # Rozszerzenie o inną listę\n", + "print(oceny)" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "oceny.pop(4) # Domyślnie usuwa ostatni element z listy\n", + "print(oceny)" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Indeksowanie" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "print(oceny)\n", + "print('pierwszy element:', oceny[0])\n", + "print('ostatni element:', oceny[-1])\n", + "print('5 pierwszych:', oceny[:5])\n", + "print('5 ostatnich', oceny[-5:])\n", + "print('od drugiego, do piątego', oceny[1:5])\n", + "print('parzyste:', oceny[::2])\n", + "print('od tyłu', oceny[::-1])" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Co możemy zrobić z listą?" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "oceny.sort()\n", + "print(oceny)\n", + "oceny.reverse()\n", + "print(\"liczba piątek\", oceny.count(5))" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Pętla typu ```for```\n", + " * W Pythonie pętla *for* działa jak pętla *for each* w innych językach;\n", + " * W Pythonie nie ma klamr, ani *begin* i *end*; jako ciało pętli musi być wcięte (najcześciej 4 spacje)." + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "for i in range(10):# range[5] = [0,1,2,3,4]\n", + " pass\n", + " \n", + "print('element:', i) # Uwaga wcięcie!\n", + "print('sqr:', i **2) # Uwaga wcięcie!" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "fragment" + } + }, + "source": [ + "Schemat:" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "for zmienna in lista:\n", + " # jakiś kod" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "for ocena in oceny:\n", + " print(\"Ocena:\", ocena)" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Lista kwadratów" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "kwadraty = []\n", + "for i in range(10):\n", + " kwadraty.append(i ** 2)\n", + "print(kwadraty)\n", + "print(kwadraty[5])" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Słowniki, czyli mapy" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "slownik = {}\n", + "s_oceny = {\"Justyna\" : [5,5,5], \"Bartek\" : [3,4,5], \"Ola\": [3,3,3]}\n", + "print(s_oceny)\n", + "s_oceny[1234567890] = [3,4,5]\n", + "#print(\"ADAM:\", s_oceny[\"Adam\"])\n", + "print(s_oceny)" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "s_oceny['Ala'] = [2,2,2,4,4,4,3,3,3]\n", + "print(s_oceny)" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Iterowanie po słowniku" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "for osoba in s_oceny:\n", + " print(osoba,':', s_oceny[osoba])" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "for osoba, oceny in s_oceny.items():\n", + " print(osoba,':', oceny)" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Instrukcja sterująca ```if ... else```" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "fragment" + } + }, + "source": [ + " * działa tak samo, jak w innych języka;\n", + " * jest dodatkowa instrukcja następnego warunku *elif...*;" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "zmienna = 7\n", + "if zmienna < 0:\n", + " print(\"Ujemna!\")\n", + "elif zmienna == 0:\n", + " print(\"Zero!\")\n" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "if \"Ala\" in s_oceny:\n", + " print(\"Ala jest w grupie!\")\n", + "else:\n", + " print(\"Niestety Ali nie ma grupie!\")" + ] + }, + { + "cell_type": "markdown", + "metadata": { + "slideshow": { + "slide_type": "slide" + } + }, + "source": [ + "## Funkcje" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "def is_greater_than_5(x):\n", + " if x > 5:\n", + " return True\n", + " else:\n", + " return False" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": false, + "slideshow": { + "slide_type": "fragment" + } + }, + "outputs": [], + "source": [ + "print(is_greater_than_5(5))\n", + "print(is_greater_than_5(-100))\n", + "print(is_greater_than_5(500))" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], + "source": [] + } + ], + "metadata": { + "celltoolbar": "Slideshow", + "kernelspec": { + "display_name": "Python 3", + "language": "python", + "name": "python3" + }, + "language_info": { + "codemirror_mode": { + "name": "ipython", + "version": 3 + }, + "file_extension": ".py", + "mimetype": "text/x-python", + "name": "python", + "nbconvert_exporter": "python", + "pygments_lexer": "ipython3", + "version": "3.5.2" + } + }, + "nbformat": 4, + "nbformat_minor": 0 +}