写JS的时候 获取select对象的value是很常见的事情 例如
<script language="javascript"> function selectInput(choose) { alert(document.getElementById("month").value); } </script> <select name="month" id ="month" onchange="selectInput(this)"> <option value="01">January</option> <option value="02">February</option> <option value="03">March</option> <option value="04">April</option> <option value="05">May</option> <option value="06">June</option> <option value="07">July</option> <option value="08" selected="selected">August</option> <option value="09">September</option> <option value="10">October</option> <option value="11">November</option> <option value="12">December</option> </select>
这样子就可以获得 month的值了 也就是01 02 03… 但是value所指向的text呢? 用一般的方法
function selectInput(choose) { alert(choose.text); }
这样子是获取不到的~ 那我们则需要另一种方法获取
<script language="javascript"> function selectInput(choose) { var selectInput = document.getElementById("month") alert(selectInput .options[selectInput.selectedIndex].text); } </script> <select name="Month" onchange="selectInput(this)"> <option value="01">January</option> <option value="02">February</option> <option value="03">March</option> <option value="04">April</option> <option value="05">May</option> <option value="06">June</option> <option value="07">July</option> <option value="08" selected="selected">August</option> <option value="09">September</option> <option value="10">October</option> <option value="11">November</option> <option value="12">December</option> </select>