196 lines
3.9 KiB
Plaintext
196 lines
3.9 KiB
Plaintext
{
|
||
"cells": [
|
||
{
|
||
"cell_type": "markdown",
|
||
"id": "c17b2056-f461-4edd-bcbc-c53a1e8aafe4",
|
||
"metadata": {},
|
||
"source": [
|
||
"# Bedinungen & Variablen\n",
|
||
"## Bedingungen\n",
|
||
"\n",
|
||
"Achtet auf Doppelpunkte und Einrückung!"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "code",
|
||
"execution_count": 1,
|
||
"id": "ac3cb812-7fb5-40ed-9328-864d9dd7a1b8",
|
||
"metadata": {},
|
||
"outputs": [],
|
||
"source": [
|
||
"def my_min(a, b):\n",
|
||
" if a < b:\n",
|
||
" return a\n",
|
||
" else:\n",
|
||
" return b"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "code",
|
||
"execution_count": 2,
|
||
"id": "be0a975d-2fb9-4be2-ad94-46de2819c72f",
|
||
"metadata": {},
|
||
"outputs": [
|
||
{
|
||
"data": {
|
||
"text/plain": [
|
||
"-5"
|
||
]
|
||
},
|
||
"execution_count": 2,
|
||
"metadata": {},
|
||
"output_type": "execute_result"
|
||
}
|
||
],
|
||
"source": [
|
||
"my_min(-2, -5)"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "markdown",
|
||
"id": "e1f7fc12-e2e3-4c7e-a949-61d3ca9360dc",
|
||
"metadata": {},
|
||
"source": [
|
||
"## Kommentare\n",
|
||
"\n",
|
||
"Programme können durch Kommentare leichter verstanden werden.\n",
|
||
"\n",
|
||
" \"\"\" Das ist ein\n",
|
||
" mehrzeiliger\n",
|
||
" Kommentar \"\"\"\n",
|
||
" \n",
|
||
" sin(0) # Kommentar bis Ende der Zeile\n",
|
||
" \n",
|
||
"ℹ️ Vernünftige Funktionsnamen sind aber noch wichtiger!"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "markdown",
|
||
"id": "d77d67a3-6161-46bf-bb3f-754391b729c8",
|
||
"metadata": {},
|
||
"source": [
|
||
"## Variablen\n",
|
||
"\n",
|
||
"In Funktionen habt ihr schon Variablen verwendet.\n",
|
||
"Diese lassen sich aber auch direkt zuweisen:"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "code",
|
||
"execution_count": 3,
|
||
"id": "4055653c-cbec-464b-aeac-a8d140fdb815",
|
||
"metadata": {},
|
||
"outputs": [
|
||
{
|
||
"data": {
|
||
"text/plain": [
|
||
"35"
|
||
]
|
||
},
|
||
"execution_count": 3,
|
||
"metadata": {},
|
||
"output_type": "execute_result"
|
||
}
|
||
],
|
||
"source": [
|
||
"a = 7\n",
|
||
"b = 5\n",
|
||
"c = a * b\n",
|
||
"# welchen Wert hat c?\n",
|
||
"c"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "code",
|
||
"execution_count": 4,
|
||
"id": "f07ba1f6-9a39-43e4-813e-c3901b1ae350",
|
||
"metadata": {},
|
||
"outputs": [
|
||
{
|
||
"data": {
|
||
"text/plain": [
|
||
"35"
|
||
]
|
||
},
|
||
"execution_count": 4,
|
||
"metadata": {},
|
||
"output_type": "execute_result"
|
||
}
|
||
],
|
||
"source": [
|
||
"b = 8\n",
|
||
"# welchen Wert hat c jetzt?\n",
|
||
"c"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "code",
|
||
"execution_count": 5,
|
||
"id": "ce519d1a-05d9-4307-a2c0-b6dad33d6053",
|
||
"metadata": {},
|
||
"outputs": [
|
||
{
|
||
"data": {
|
||
"text/plain": [
|
||
"56"
|
||
]
|
||
},
|
||
"execution_count": 5,
|
||
"metadata": {},
|
||
"output_type": "execute_result"
|
||
}
|
||
],
|
||
"source": [
|
||
"# c ist immer noch 35 weil es noch nicht neu berechnet wurde\n",
|
||
"c = a * b\n",
|
||
"# jetzt sollte es 56 sein\n",
|
||
"c"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "markdown",
|
||
"id": "e9505ef6-2904-475b-837b-bba119c16b7a",
|
||
"metadata": {},
|
||
"source": [
|
||
"ℹ️ Warum muss `c` eingegeben werden um das Ergebnis zu sehen?\n",
|
||
"\n",
|
||
"Ein Ergebnis wird nur angezeigt, wenn der Aufruf irgendetwas zurück gibt:\n",
|
||
" \n",
|
||
"* Berechnung wie 1 + 2 -> Ergebnis\n",
|
||
"* Funktionaufruf -> das return-te\n",
|
||
"* Zuweisung a = b -> nix\n",
|
||
"* Variablenname -> Wert der Variable"
|
||
]
|
||
},
|
||
{
|
||
"cell_type": "code",
|
||
"execution_count": null,
|
||
"id": "65aea755-4369-4985-8dfd-c239a015dd03",
|
||
"metadata": {},
|
||
"outputs": [],
|
||
"source": []
|
||
}
|
||
],
|
||
"metadata": {
|
||
"kernelspec": {
|
||
"display_name": "Python 3 (ipykernel)",
|
||
"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": "3.9.7"
|
||
}
|
||
},
|
||
"nbformat": 4,
|
||
"nbformat_minor": 5
|
||
}
|