Html程序  |  23行  |  595 B

<!--
@MAC-ALLOW:AXRoleDescription=*
-->
<html>
<body>
  <select id="A" name="Select A">
    <option value="">Placeholder option</option>
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
  </select>
  <select id="B" name="Select B">
    <option value="1">Option 1</option>
    <option value="2" selected>Option 2</option>
    <option value="3">Option 3</option>
  </select>
  <select id="B" name="Select C" requried>
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
  </select>
</body>
</html>