checkbox与select结合2.htm

=== === === === JavaScript经典源代码收集

<Script Language="JavaScript">
      function selchg(value){
          self['oSelect'].selectedIndex=value;
      }
</Script>
数字一：<input type="checkbox" value="1" onclick="checked?selchg(value):selchg(0)">
数字二：<input type="checkbox" value="2" onclick="checked?selchg(value):selchg(0)">
数字三：<input type="checkbox" value="3" onclick="checked?selchg(value):selchg(0)">
<br>
<select id="oSelect">
     <option>选项列表</option>
     <option value="1">数字一</option>
     <option value="2">数字二</option>
     <option value="3">数字三</option>
</select>