Share Code Máy Tính Bỏ Túi Online đẹp -KenhWap

<form class="calc">
    <p class="calc-display">
      <input type="text" name="res" id="res" value="" class="calc-display-input" onfocus="this.blur()">
    </p>
    <p class="calc-row">
      <button type="button" class="calc-button calc-button-gray" onclick="s('Just....')">MRC</button>
      <button type="button" class="calc-button calc-button-gray" onclick="s('....do..')">M-</button>
      <button type="button" class="calc-button calc-button-gray" onclick="s('......it')">M+</button>
      <button type="button" class="calc-button calc-button-red calc-button-big" onclick="a'">÷</button>
    </p>
    <p class="calc-row">
      <button type="button" class="calc-button" onclick="a('7')">7</button>
      <button type="button" class="calc-button" onclick="a('8')">8</button>
      <button type="button" class="calc-button" onclick="a('9')">9</button>
      <button type="button" class="calc-button calc-button-red calc-button-big" onclick="a0">x</button>
    </p>
    <p class="calc-row">
      <button type="button" class="calc-button" onclick="a('4')">4</button>
      <button type="button" class="calc-button" onclick="a('5')">5</button>
      <button type="button" class="calc-button" onclick="a('6')">6</button>
      <button type="button" class="calc-button calc-button-red calc-button-big" onclick="a0">-</button>
    </p>
    <p class="calc-row">
      <button type="button" class="calc-button" onclick="a('1')">1</button>
      <button type="button" class="calc-button" onclick="a('2')">2</button>
      <button type="button" class="calc-button" onclick="a('3')">3</button>
      <button type="button" class="calc-button calc-button-red calc-button-big" onclick="a0">+</button>
    </p>
    <p class="calc-row">
      <button type="button" class="calc-button" onclick="a('0')">0</button>
      <button type="button" class="calc-button" onclick="a('.')">.</button>
      <button type="button" class="calc-button" onclick="s('')">DEL</button>
      <button type="button" class="calc-button calc-button-yellow calc-button-big" onclick="e()">=</button>
    </p>
  </form>
  <script>
    function s(v) { document.getElementById('res').value = v }
    function a(v) { document.getElementById('res').value += v }
    function e() { try { s(eval(document.getElementById('res').value)) } catch(e) { s('Error') } }
  </script>