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Jan 27th, 2020
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  1. <!DOCTYPE html>
  2. <html>
  3. <head>
  4. <meta charset="utf-8">
  5. <style>
  6. button {
  7. font-size:120%;
  8. margin:10px;
  9. }
  10. </style>
  11. </head>
  12. <body>
  13.  
  14. <h1> Αριθμομηχανή με JavaScript </h1>
  15.  
  16.  
  17.  
  18. Αριθμός 1 : <input type="text" id="num1" value=""> <br><br>
  19. Αριθμός 2 : <input type="text" id="num2" value=""> <br><br>
  20.  
  21. <button onclick="mysum()"> + </button>
  22. <button onclick="af()"> - </button>
  23. <button onclick="pol()"> * </button>
  24. <button onclick="die()"> / </button>
  25.  
  26. <h2 id="result"></h2>
  27.  
  28. <script>
  29. var myNum1 = document.getElementById("num1");
  30. var myNum2 = document.getElementById("num2");
  31. var myResult= document.getElementById("result");
  32.  
  33.  
  34. function mysum()
  35. {
  36. a1=Number(myNum1.value);
  37. a2=Number(myNum2.value);
  38. b=a1+a2;
  39. myResult.innerHTML="Το άθροισμα είναι "+b;
  40. }
  41. function af()
  42. {
  43. a1=Number(myNum1.value);
  44. a2=Number(myNum2.value);
  45. b=a1-a2;
  46. myResult.innerHTML="Το άθροισμα είναι "+b;
  47. }
  48. function pol()
  49. {
  50. a1=Number(myNum1.value);
  51. a2=Number(myNum2.value);
  52. b=a1*a2;
  53. myResult.innerHTML="Το άθροισμα είναι "+b;
  54. }
  55. function die()
  56. {
  57. a1=Number(myNum1.value);
  58. a2=Number(myNum2.value);
  59. b=a1/a2;
  60. myResult.innerHTML="Το άθροισμα είναι "+b;
  61. }
  62. </script>
  63. </body>
  64. </html>
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