假設下拉框如下:
<select id="ddlViewBy">
<option value="1">test1</option>
<option value="2" selected="selected">test2</option>
<option value="3">test3</option>
</select>
運行下面的代碼:
var e = document.getElementById("ddlViewBy");
var strUser = e.options[e.selectedIndex].value;
strUser的值將會是2;
運行下面的代碼:
var e = document.getElementById("ddlViewBy");
var strUser = e.options[e.selectedIndex].text;