The html code is as follows:

<select name="repeat-freq">
    <option value="1" selected>每周重复</option>
    <option value="2">两周重复</option>
    <option value="3">每月重复</option>
</select>

This is how the selected value is selected in the controller:

$('select[name="repeat-freq"]').val()

The result is that the value obtained is always "1", and other items in the selected option are still 1. I can't figure out why. Please give me an answer.