<textarea name="txt">
</textarea>
<select name="demo" size=1 onchange="txt.value=options[selectedIndex].text;"><option value="aaaaa">1123312</option>
<option value="bbbbb">12312312</option></select>
如果要value就用这样!
<textarea name="txt">
</textarea>
<select name="demo" size=1 onchange="txt.value=options[selectedIndex].value;"><option value="aaaaa">1123312</option>
<option value="bbbbb">12312312</option></select>
</textarea>
<select name="demo" size=1 onchange="txt.value=options[selectedIndex].text;"><option value="aaaaa">1123312</option>
<option value="bbbbb">12312312</option></select>
如果要value就用这样!
<textarea name="txt">
</textarea>
<select name="demo" size=1 onchange="txt.value=options[selectedIndex].value;"><option value="aaaaa">1123312</option>
<option value="bbbbb">12312312</option></select>
把参数传递到一个隐藏框架页面!让那个页面去查!然后再返回给当前页面!
看看MSDN