我需要下拉选择值会根据两个单选按钮动态变化。例如,在我的html代码中,如果从国家/地区选择国家/地区并从城市中选择city1,则下拉值将设置为1 如果从国家/地区选择国家1并从城市中选择city2,则下拉值将设置为2。 我需要JavaScript或PHP代码。
感谢您的帮助。
<div class='aQuestion' id='div1'>
<STRONG>1. </STRONG>
<STRONG>Country</STRONG></br>
<INPUT TYPE='radio' NAME='grp1' VALUE='Country 0'>Country1</br>
</div>
<div class='aQuestion' id='div2'>
<STRONG>2. </STRONG>
<STRONG>City</STRONG></br>
<INPUT TYPE='radio' NAME='grp2' VALUE='City 0'>City 1</br>
<INPUT TYPE='radio' NAME='grp2' VALUE='City1'>City 2</br>
</div><br/>
<div> set 1
<select name="school">
<option value="school1">school 1</option>;
<option value="school2">school 2</option>;
<option value="school3">school 3</option>;
</select><br/>
</div><br/>
<div>
set 2
<select name="school">
<option value="school4">school 4</option>;
<option value="school5">school 5</option>;
<option value="school6">school 6</option>;
</select>
</div>
答案 0 :(得分:0)
替换
<INPUT TYPE='radio' NAME='grp2' VALUE='City 0'>City 1</br>
<INPUT TYPE='radio' NAME='grp2' VALUE='City1'>City 2</br>
与
<INPUT TYPE='radio' NAME='grp2' VALUE='City 0' onClick="javascript:return yourfunction(1)">City 1</br>
<INPUT TYPE='radio' NAME='grp2' VALUE='City1' onClick="javascript:return yourfunction(2)">City 2</br>
JavaScript代码
function yourfunction(radioid)
{
if(radioid == 1)
{
document.getElementById('one').style.display = '';
document.getElementById('two').style.display = 'none';
}
else if(radioid == 2)
{
document.getElementById('two').style.display = '';
document.getElementById('one').style.display = 'none';
}
}
工作模式,请参阅
希望这会有所帮助