<script>function check(){var dd = ""; if($("input[type=‘checkbox‘][name=‘mokedoc‘]:checked").attr("checked")){//选中了   $(‘input:checkbox[name="mokedoc"]:checked‘).each(function()   {        alert($(this).val());    dd += $(this).val()+" ";    $("#dds").val(dd);   }); }else{$("#dds").val("");} }  </script>   <input type="checkbox" name="mokedoc" value="11" onclick="check()"/>1231   <input type="checkbox" name="mokedoc" value="12" onclick="check()"/>2342 <input type="checkbox" name="mokedoc" value="14" onclick="check()"/>3343 <input type="checkbox" name="mokedoc" value="15" onclick="check()"/>5213  <input name="dds" id="dds" value="" type="text" />