关于如何实现右边下拉框中选项的排序一时没有好的解决方法,等想到了回来补充
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Page Title</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <script src="jquery-3.3.1.min.js"></script> <style> #select1 { margin-left: 20px; } #select2{ margin-left: 20px; } span{ display: block; border: 1px solid orange; width: 135px; background-color: coral; color: whitesmoke; box-shadow: 1px 1px 10.1px salmon; margin-bottom: 5px; margin-top: 5px; cursor: pointer; } .container2{ position: absolute; left:200px; top: 8px; } </style> </head> <body> <div class="container1"> <select multiple name="" id="select1" style="100px;height:150px;"> <!-- multiple:使下拉框能够同时拖选多个选项 --> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> </select> <div> <span id="add">选中添加到右边>></span> <span id="addAll">全部添加到右边>></span> </div> </div> <div class="container2"> <select multiple name="" id="select2" style="100px;height:150px;"> </select> <div> <span id="remove">选中删除到左边<<</span> <span id="removeAll">全部删除到左边<<</span> </div> </div> <script> window.onload = function(){ var addBtn = document.getElementById("add"); var addAll = document.getElementById("addAll"); var container = document.getElementsByClassName("container1")[0]; var options = container.getElementsByTagName("option"); var select1 = document.getElementById("select1"); var select2 = document.getElementById("select2"); var optSore = []; var valueStore = []; console.log(options); function addToRight(){ var i = 0; for(i=0;i<options.length;i++){ if(options[i].selected){//别用.getAttrbute("selected") // valueStore.push(options[i].value); // optSore.push(options[i]); console.log(options[i]); var move = select1.removeChild(options[i]); console.log(move); select2.appendChild(move); i = i - 1; //@解决了!options是左边容器中的选项列表,每次移除一个选项后,紧跟在后面的选项就会上移, //所以要将这里的i前移一位 明天补个示意图 } } console.log(optSore,valueStore); } function addAllOpt(){ var i = 0; for(i;i<options.length;i++){ optSore.push(options[i]); valueStore.push(options[i].value); } console.log(optSore,valueStore); } addBtn.addEventListener("click",addToRight,false); addAll.addEventListener("click",addAllOpt,false); } </script> <script> // $(function(){ // $("#add").click(function(){ // var $selectedOpt = $("#select1 option:selected"); // var $remove = $selectedOpt.remove();//我惊了 你呢 原生js有这种操作吗 // $remove.prop("selected",false)//不然添加过去后会停留在被选中的状态 // .appendTo("#select2"); // }); // $("#addAll").click(function(){ // var $removeAll = $("#select1 option").remove(); // $removeAll.appendTo("#select2"); // }) // }); </script> </body> </html>