{"id":43,"date":"2025-09-24T22:01:33","date_gmt":"2025-09-24T20:01:33","guid":{"rendered":"http:\/\/python-ai.pl\/?p=43"},"modified":"2025-09-24T22:01:33","modified_gmt":"2025-09-24T20:01:33","slug":"warunki-if-elif-else","status":"publish","type":"post","link":"https:\/\/python-ai.pl\/?p=43","title":{"rendered":"Warunki – if, elif, else"},"content":{"rendered":"\n
\n

Instrukcje warunkowe w Pythonie<\/h4>\n\n\n\n

Instrukcje warunkowe pozwalaj\u0105 na wykonywanie r\u00f3\u017cnych fragment\u00f3w kodu w zale\u017cno\u015bci od spe\u0142nienia warunk\u00f3w.<\/p>\n\n\n\n

Podstawowe operatory por\u00f3wnania:<\/h4>\n\n\n\n
    \n
  • ==<\/code> – r\u00f3wno\u015b\u0107<\/li>\n\n\n\n
  • !=<\/code> – nier\u00f3wno\u015b\u0107<\/li>\n\n\n\n
  • ><\/code> – wi\u0119ksze ni\u017c<\/li>\n\n\n\n
  • <<\/code> – mniejsze ni\u017c<\/li>\n\n\n\n
  • >=<\/code> – wi\u0119ksze lub r\u00f3wne<\/li>\n\n\n\n
  • <=<\/code> – mniejsze lub r\u00f3wne<\/li>\n<\/ul>\n\n\n\n

    Operatory logiczne:<\/h4>\n\n\n\n
      \n
    • and<\/code> – i (oba warunki musz\u0105 by\u0107 prawdziwe)<\/li>\n\n\n\n
    • or<\/code> – lub (przynajmniej jeden warunek musi by\u0107 prawdziwy)<\/li>\n\n\n\n
    • not<\/code> – nie (negacja)<\/li>\n<\/ul>\n\n\n\n

      Podstawowa instrukcja if:<\/h4>\n\n\n\n
      <\/path><\/path><\/svg><\/span>
      age = <\/span>18<\/span><\/span>\n<\/span>\nif<\/span> age >= <\/span>18<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Jeste\u015b pe\u0142noletni"<\/span>)<\/span><\/span>\nelse<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Jeste\u015b niepe\u0142noletni"<\/span>)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
      Instrukcja if-elif-else:<\/h4>\n\n\n\n
      <\/path><\/path><\/svg><\/span>
      score = <\/span>85<\/span><\/span>\n<\/span>\nif<\/span> score >= <\/span>90<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Ocena: A"<\/span>)<\/span><\/span>\nelif<\/span> score >= <\/span>80<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Ocena: B"<\/span>)<\/span><\/span>\nelif<\/span> score >= <\/span>70<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Ocena: C"<\/span>)<\/span><\/span>\nelif<\/span> score >= <\/span>60<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Ocena: D"<\/span>)<\/span><\/span>\nelse<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Ocena: F"<\/span>)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
      Zagnie\u017cd\u017cone warunki:<\/h4>\n\n\n\n
      <\/path><\/path><\/svg><\/span>
      age = <\/span>25<\/span><\/span>\nincome = <\/span>50000<\/span><\/span>\n<\/span>\nif<\/span> age >= <\/span>18<\/span>:<\/span><\/span>\n    <\/span>if<\/span> income >= <\/span>40000<\/span>:<\/span><\/span>\n        <\/span>print<\/span>(<\/span>"Mo\u017cesz wzi\u0105\u0107 kredyt"<\/span>)<\/span><\/span>\n    <\/span>else<\/span>:<\/span><\/span>\n        <\/span>print<\/span>(<\/span>"Za niskie zarobki"<\/span>)<\/span><\/span>\nelse<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Za m\u0142ody na kredyt"<\/span>)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
      Warunki z operatorami logicznymi:<\/h4>\n\n\n\n
      <\/path><\/path><\/svg><\/span>
      temperature = <\/span>25<\/span><\/span>\nhumidity = <\/span>60<\/span><\/span>\n<\/span>\nif<\/span> temperature > <\/span>30<\/span> <\/span>and<\/span> humidity > <\/span>70<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Jest gor\u0105co i wilgotno!"<\/span>)<\/span><\/span>\nelif<\/span> temperature > <\/span>30<\/span> <\/span>or<\/span> humidity > <\/span>70<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Jest gor\u0105co lub wilgotno"<\/span>)<\/span><\/span>\nelse<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Przyjemna pogoda"<\/span>)<\/span><\/span>\n<\/span>\n# Sprawdzanie czy liczba jest w zakresie<\/span><\/span>\nnumber = <\/span>15<\/span><\/span>\nif<\/span> <\/span>10<\/span> <= number <= <\/span>20<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>"Liczba jest w zakresie 10-20"<\/span>)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
      Sprawdzanie czy element jest w kolekcji:<\/h4>\n\n\n\n
      <\/path><\/path><\/svg><\/span>
      fruits = [<\/span>"jab\u0142ko"<\/span>, <\/span>"banan"<\/span>, <\/span>"pomara\u0144cza"<\/span>]<\/span><\/span>\nfruit = <\/span>"jab\u0142ko"<\/span><\/span>\n<\/span>\nif<\/span> fruit <\/span>in<\/span> fruits:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>f<\/span>"<\/span>{<\/span>fruit<\/span>}<\/span> jest na li\u015bcie"<\/span>)<\/span><\/span>\nelse<\/span>:<\/span><\/span>\n    <\/span>print<\/span>(<\/span>f<\/span>"<\/span>{<\/span>fruit<\/span>}<\/span> nie ma na li\u015bcie"<\/span>)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
      \u0106wiczenie:<\/h4>\n\n\n\n
      Napisz program sprawdzaj\u0105cy r\u00f3\u017cne warunki i wy\u015bwietlaj\u0105cy odpowiednie komunikaty.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"
      Instrukcje warunkowe w Pythonie Instrukcje warunkowe pozwalaj\u0105 na wykonywanie r\u00f3\u017cnych fragment\u00f3w kodu w zale\u017cno\u015bci od spe\u0142nienia warunk\u00f3w. Podstawowe operatory por\u00f3wnania: Operatory logiczne: Podstawowa instrukcja if: Instrukcja if-elif-else: Zagnie\u017cd\u017cone warunki: Warunki z operatorami logicznymi: Sprawdzanie czy element jest w kolekcji: \u0106wiczenie: Napisz program sprawdzaj\u0105cy r\u00f3\u017cne warunki i wy\u015bwietlaj\u0105cy odpowiednie komunikaty.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4,3],"tags":[16,17,15,6,5,14],"class_list":["post-43","post","type-post","status-publish","format-standard","hentry","category-kurs","category-python","tag-elif","tag-else","tag-if","tag-kurs","tag-python","tag-warunki"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/python-ai.pl\/index.php?rest_route=\/wp\/v2\/posts\/43","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/python-ai.pl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/python-ai.pl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/python-ai.pl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/python-ai.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=43"}],"version-history":[{"count":1,"href":"https:\/\/python-ai.pl\/index.php?rest_route=\/wp\/v2\/posts\/43\/revisions"}],"predecessor-version":[{"id":44,"href":"https:\/\/python-ai.pl\/index.php?rest_route=\/wp\/v2\/posts\/43\/revisions\/44"}],"wp:attachment":[{"href":"https:\/\/python-ai.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=43"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/python-ai.pl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=43"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/python-ai.pl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}