<select onChange=showcolor(this.options[this.selectedIndex].value) name=color> <option selected>選擇顏色</option> <option value='#FF0000 ' style='color:#FF0000 ;BACKGROUND-COLOR:#FF0000'>紅色</option> <option value='#00FF00 ' style='color:#00FF00 ;BACKGROUND-COLOR:#00FF00 '>綠色</option>