[英]How select multiple dropdown in jquery?
尝试这个
$("select[name=test]").val([1,2,3]);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <select name="test" multiple="multiple"> <option value="1">1 This is first</option> <option value="2">2 This is second</option> <option value="3">3 This is third</option> <option value="4">4 This is fourth</option> </select>
你可以试试:
$('select option[value=' + val + ']').attr('selected', true);
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