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Feb 17th, 2020
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  1. <html>
  2. <script type="text/Javascript">
  3. function oblicz() {
  4. var x=Number(document.getElementById("liczba1").value);
  5. var y=Number(document.getElementById("liczba2").value);
  6. var z=Number(document.getElementById("wybierz").value);
  7. if (z=="d1") document.getElementById("wynik").innerHTML=x+y;
  8. if (z=="d2") document.getElementById("wynik").innerHTML=x-y;
  9. if (z=="d3") document.getElementById("wynik").innerHTML=x*y;
  10. if (z=="d4") document.getElementById("wynik").innerHTML=x/y;
  11. }
  12.  
  13. </script>
  14. <body>
  15. <form method="post">
  16. <input type="text" id="liczba1">
  17. <br>
  18. <input type="text" id="liczba2">
  19. <br>
  20. <select id="wybierz">
  21. <option value="d1">+</option>
  22. <option value="d2">+</option>
  23. <option value="d3">+</option>
  24. <option value="d4">+</option>
  25. </select>
  26. <input type="button" value="oblicz" onClick="oblicz()">
  27. </form>
  28.  
  29.  
  30.  
  31.  
  32.  
  33.  
  34.  
  35. </body>
  36. <html>
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