jQuery在选择框中设置选项

Question

我似乎无法让这个工作......

<select id="selectBox">
<option value="A">Number 0</option>
<option value="B">Number 1</option>
<option value="C">Number 2</option>
<option value="D">Number 3</option>
<option value="E">Number 4</option>
<option value="F">Number 5</option>
<option value="G">Number 6</option>
<option value="H">Number 7</option>
</select>

$('#selectBox option[value=C]').attr('selected', 'selected');

Answer 1

除非您尝试执行多选列表框,否则为什么不:

$('#selectBox').val('C');