[select2] 分组下拉选择
<html> <header> <link href="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css" rel="stylesheet" /> </header> <body> <select id="selectBuildingCell"></select> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.3/jquery.js"></script> <script src="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js"></script> <script> let building = []; for (var i = 0; i < 3; i++) { let cell = []; for (var j = 0; j < 5; j++) { cell.push({ id: j, text: `Cell${j}` }); } if (cell.length > 0) { building.push({ text: `Building${i}`, children: cell }); } } $("#selectBuildingCell").select2({ data: building, width: '100%', sorter: opt => opt.sort((a, b) => a.text.localeCompare(b.text)) }); </script> </body> </html>