怎么给下拉框默认选中
<select id="shipping" name="node_type" class="valid"><option value="1">1</option><option value="2">2</option><option value="3">3</option><option value="4">4</option><option value="5">5</option><option value="6">6</option></select><script>function selectNumber(){var num =1; //获取关联id值var numbers = $("#shipping").find("option"); //获取select下拉框的所有值for (var j = 1; j < numbers.length; j++) {if ($(numbers[j]).val() == num) {//用select所有值进行匹配跟num值进行匹配,默认选中给selected属性$(numbers[j]).attr("selected", "selected");}} }selectNumber();</script>
