<select><option value="選項(xiàng)1">選項(xiàng)1</option><option value="選項(xiàng)2">選項(xiàng)2</option><option value="選項(xiàng)3">選項(xiàng)3</option></select>

<select><option value="選項(xiàng)1">選項(xiàng)1</option><option value="選項(xiàng)2" selected>選項(xiàng)2</option><option value="選項(xiàng)3">選項(xiàng)3</option></select>

<select><optgroup label="顏色"><option value="紅色">紅色</option><option value="綠色">綠色</option><option value="藍(lán)色">藍(lán)色</option></optgroup><optgroup label="尺寸"><option value="小號(hào)">小號(hào)</option><option value="中號(hào)">中號(hào)</option><option value="大號(hào)">大號(hào)</option></optgroup></select>