jquery 使用

chencs

$("#select1")[0].options(index).selected = true; //使第index个option选中
$("#select1")[0].options(3).text //取索引为3的option值
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select name="select_test" id="select_test">
option value="11111" selected>aaaaoption>
option value="22222">bbbboption>
option value="33333">ccccoption>
select>
取“cccc”的方法  var a = $("#select_test").children().eq(2).text();
取“33333”的方法  var a = $("#select_test").children().eq(2).val();
eq( pos )
Reduce the set of matched elements to a single element. The position of the element in the set of matched elements starts at 0 and goes to length - 1.
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