再简单不过的问题，请指教

Question

<select onchange="alert('Value='+this.options[this.selectedIndex].value);alert('Text='+this.options[this.selectedIndex].text)">
<option>请选择</a>
<option value="a">aaa</a>
<option value="b">bbb</a>
</select>

Answer 1

<select onchange="alert('Value='+this.options[this.selectedIndex].value);alert('Text='+this.options[this.selectedIndex].text);alert('innerText='+this.options[this.selectedIndex].innerText);alert('innerHTML='+this.options[this.selectedIndex].innerHTML);alert('outerHTML='+this.options[this.selectedIndex].outerHTML)">
<option>请选择</a>
<option value="a">aaa</a>
<option value="b">bbb</a>
</select>