Dmitry
98c27fec85
Perform a bulk rename/move of many files and folders: paths previously prefixed with '01', '02', '03', '04', etc. were relocated to equivalent paths prefixed with '8'. Changes are path-only (R100 renames) and do not modify file contents; this reorganizes the repository structure.
278 lines
7.2 KiB
Plaintext
278 lines
7.2 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "5ffc18fc",
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"metadata": {},
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"source": [
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"# Генераторы массивов"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "17f0549b",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]\n",
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"{0, 1, 2}\n",
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"(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)\n"
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]
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}
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],
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"source": [
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"\n",
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"n = 20\n",
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"a = [i for i in range(n)]\n",
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"b = {i%3 for i in range(n)}\n",
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"c = tuple(i for i in range(n))\n",
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"print(a)\n",
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"print(b)\n",
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"print(c)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "f64d6b65",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"[62, 64, 58, 6, 28, 8, 3, 4, 8, 2, 94, 65, 4, 23, 26, 38, 67, 4, 72, 82]\n"
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]
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}
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],
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"source": [
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"# Модуль random\n",
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"import random as rd\n",
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"a = [rd.randint(0, 100) for i in range(n)]\n",
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"print(a)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 3,
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"id": "a03afa9b",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64, 9: 81, 10: 100, 11: 121, 12: 144, 13: 169, 14: 196, 15: 225, 16: 256, 17: 289, 18: 324, 19: 361}\n"
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]
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}
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],
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"source": [
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"# Генерация словаря\n",
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"d = {i: i**2 for i in range(n)}\n",
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"print(d)"
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]
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},
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{
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"cell_type": "markdown",
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"id": "1523bfb5",
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"metadata": {},
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"source": [
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"# Сортировка"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "0e5b7a6e",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"[-98, -96, -92, -60, -49, -42, -32, -18, -10, -10, 42, 53, 55, 64, 73, 75, 78, 81, 81, 98]\n",
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"[98, 81, 81, 78, 75, 73, 64, 55, 53, 42, -10, -10, -18, -32, -42, -49, -60, -92, -96, -98]\n",
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"[-10, -10, -18, -32, 42, -42, -49, 53, 55, -60, 64, 73, 75, 78, 81, 81, -92, -96, -98, 98]\n",
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"[-98, -96, -92, -60, -49, -42, -32, -18, -10, -10, 42, 53, 55, 64, 73, 75, 78, 81, 81, 98]\n"
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]
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}
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],
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"source": [
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"# sort и sorted\n",
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"\n",
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"a = [rd.randint(-100, 100) for i in range(n)]\n",
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"\n",
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"b = sorted(a) # Возвращает новый отсортированный список\n",
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"print(b)\n",
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"\n",
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"c = sorted(a, reverse=True) # Сортирует в обратном порядке\n",
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"print(c)\n",
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"\n",
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"e = sorted(a, key=lambda x: abs(x)) # Сортирует по ключу, в данном случае по абсолютному значению\n",
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"print(e)\n",
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"\n",
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"a.sort() # Сортирует список на месте, ничего не возвращает\n",
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"print(a)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "9b186915",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"[-98, -96, -92, -60, -42, -32, -18, -10, -10, 42, 64, 78, 98]\n"
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]
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}
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],
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"source": [
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"# метод filter\n",
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"\n",
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"f = filter(lambda x: x % 2 == 0, a) # Фильтрует элементы, оставляя только четные\n",
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"print(list(f))"
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]
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},
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{
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"cell_type": "markdown",
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"id": "8966f584",
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"metadata": {},
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"source": [
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"# Операции со строками"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 25,
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"id": "886e6200",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"['fefef', '', '', '', '', 'egege', 'wpdwpfwof', '', '', '', 'eijoifwmfkwmfl', '', '', '', 'dwpdwpekwp']\n",
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"['fefef', 'egege', 'wpdwpfwof', 'eijoifwmfkwmfl', 'dwpdwpekwp']\n",
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"['Fefef', 'Egege', 'Wpdwpfwof', 'Eijoifwmfkwmfl', 'Dwpdwpekwp']\n",
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"Fefef Egege Wpdwpfwof Eijoifwmfkwmfl Dwpdwpekwp\n"
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]
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}
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],
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"source": [
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"s = \"fefef egege wpdwpfwof eijoifwmfkwmfl dwpdwpekwp\"\n",
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"s1 = s.split(' ') # Разделяет строку по пробелам и преовращает в список слов\n",
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"print(s1)\n",
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"\n",
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"s2 = list(filter(lambda x: x, s1))\n",
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"print(s2)\n",
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"\n",
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"s3 = [x.capitalize() for x in s2] # Преобразует каждое слово в строку с заглавной первой буквой\n",
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"print(s3)\n",
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"\n",
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"s4 = ' '.join(s3) # Соединяет элементы списка в строку, используя ' ' в качестве разделителя\n",
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"print(s4)\n",
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"# print(' '.join(['a', 'b', 'c'])) # Соединяет элементы списка в строку, используя пробел в качестве разделителя"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 26,
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"id": "41ab72cf",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Hello, World!\n"
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]
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}
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],
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"source": [
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"st = ' Hello, World! '\n",
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"print(st.strip()) # Удаляет пробелы в начале и конце строки"
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]
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},
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{
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"cell_type": "markdown",
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"id": "7ff78577",
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"metadata": {},
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"source": [
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"# Распаковка и запаковка"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 34,
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"id": "d39d6026",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"3.0\n"
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]
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}
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],
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"source": [
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"def average(*nums):\n",
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" return sum(nums) / len(nums) if nums else None\n",
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"\n",
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"print(average(1, 2, 3, 4, 5)) # Вывод: 3.0"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "e3997fbd",
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"<a href=\"https://ada-dev.ru\" target=\"_blank\"></a>\n"
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]
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}
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],
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"source": [
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"# Функция, которая принимает первым аргументом тег, а затем именованные параметры, и возвращает строку в виде HTML-тега с этими параметрами\n",
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"def create_html(tag, **attributes):\n",
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" attr_str = ' '.join(f'{key}=\"{value}\"' for key, value in attributes.items())\n",
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" return f'<{tag} {attr_str}></{tag}>'\n",
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"\n",
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"print(create_html('a', href='https://ada-dev.ru', target='_blank'))"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": ".venv",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.14.3"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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