仅选择选择了至少一个选项的选择框？

Question

div不起作用，如果选择了多个选项，这将为我提供同一选择框的多个实例：var $rows = $('select:selected');

var $rows = $('select option:selected');

var $rows = $('select option:selected');
$rows.each(function() {
  console.log($(this).closest('select').attr('id')); // should only return 1 and 2, not 2 twice
});