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Sep 11th, 2018
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  1. <!DOCTYPE html>
  2. <html lang="">
  3. <head>
  4. <meta charset="utf-8">
  5. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  6. <link rel="stylesheet" href="style.css"/>
  7. <title>Javascript</title>
  8. </head>
  9. <body style="text-align:center">
  10. <div id="tlo">
  11. <h1>Suma kolejnych liczb całkowitych</h1>
  12. <form>
  13. <p>Podaj Liczbę Początkową</p>
  14. <input type="text" id="P"></input>
  15. <p>Podaj Liczbę Końcową</p>
  16. <input type="text" id="K"></input>
  17. <button onclick="whiles();return false;">While</button>
  18. <button onclick="dowhile();return false;">Do-While</button>
  19. <button onclick="fore();return false;">For</button>
  20. </form>
  21. <div>Wyniki</div>
  22. <p>Pętla While</p><div id="wynik"></div>
  23. <p>Pętla Do-While</p><div id="wynik1"></div>
  24. <p>Pętla For</p><div id="wynik2"></div>
  25. </div>
  26. <script>
  27. function whiles()
  28. {
  29. var a = parseFloat(document.getElementById("P").value);
  30. var b = parseFloat(document.getElementById("K").value);
  31.  
  32. var suma = 0;
  33. while(b>=a)
  34. {
  35. suma+=a;
  36. a++;
  37.  
  38. }
  39. document.getElementById("wynik").innerHTML = suma;
  40. }
  41.  
  42. function dowhile()
  43. {
  44. var a = parseFloat(document.getElementById("P").value);
  45. var b = parseFloat(document.getElementById("K").value);
  46.  
  47. var suma = 0;
  48. do
  49. {
  50. suma+=a;
  51. a++;
  52. }
  53. while(b>=a);
  54. document.getElementById("wynik1").innerHTML = suma;
  55. }
  56.  
  57. function fore()
  58. {
  59. var a = parseFloat(document.getElementById("P").value);
  60. var b = parseFloat(document.getElementById("K").value);
  61.  
  62. var suma = 0;
  63.  
  64. for (var i = a; i<=b; i++)
  65. {
  66. suma =(suma+i);
  67. }
  68. document.getElementById("wynik2").innerHTML = suma;
  69. }
  70.  
  71. </script>
  72. </body>
  73. </html>
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