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- <html>
- <head>
- <title>Kalkulator</title>
- <style>
- button{
- width : 30px;
- }
- </style>
- <script type = "text/javascript">
- var z;
- var x;
- var y;
- function klik(znak)
- {
- var a = document.getElementById("a");
- x = parseInt(a.value);
- z = znak;
- a.value=0;
- }
- function oblicz()
- {
- var a = document.getElementById("a");
- y = parseInt(a.value);
- var ww;
- switch(z)
- {
- case "+":
- ww = x + y;
- break;
- case "-":
- ww = x - y;
- break;
- case "*":
- ww = x * y;
- break;
- case "/":
- if(bb==0)
- alert("Nie wolno dzielić przez 0");
- else
- ww = x / y;
- break;
- }
- a.value = ww;
- }
- function cyfra(cf)
- {
- var a = document.getElementById("a");
- if (a.value == "0")
- {
- a.value = cf;
- }
- else
- {
- a.value = a.value + cf;
- }
- }
- function czysc()
- {
- document.getElementById("a").value = "0";
- }
- </script>
- </head>
- <body>
- <input id="a" type="text" value ="0"> <br />
- <button onclick = "cyfra('1')"> 1 </button>
- <button onclick = "cyfra('2')"> 2 </button>
- <button onclick = "cyfra('3')"> 3 </button>
- <button onclick = "klik('+')"> + </button></br>
- <button onclick = "cyfra('4')"> 4 </button>
- <button onclick = "cyfra('5')"> 5 </button>
- <button onclick = "cyfra('6')"> 6 </button>
- <button onclick = "klik('-')"> - </button></br>
- <button onclick = "cyfra('7')"> 7 </button>
- <button onclick = "cyfra('8')"> 8 </button>
- <button onclick = "cyfra('9')"> 9 </button>
- <button onclick = "klik('*')"> * </button></br>
- <button onclick = "cyfra('0')"> 0 </button>
- <button onclick = "klik('/')"> / </button>
- <button onclick = "oblicz()" > = </button>
- <button onclick = "czysc()" > C </button></br>
- </body>
- </html>
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