我提供两个js函数。setLocalStorageDensity设置本地存储数据，getLocalStorageDensity获取本地存储数据 我希望我自定义的selecl标签的name值可用根据getLocalStorageDensity实时变动 代码如下： <select class="layui-btn layui-btn-sm" id="nailDensity" onchange="setLocalStorageDensity(value)" name=""> <option value="" selected>请选择钉码浓度</option> <option value="0">钉码浓度0</option> <option value="7">钉码浓度7</option> <option value="15">钉码浓度15</option> </select> function setLocalStorageDensity(density) { // 设置本地存储数据 localStorage.setItem("yxgj_printer_density", density); } function getLocalStorageDensity() { // 获取本地存储数据 density = localStorage.getItem("yxgj_printer_density"); }

你可以在页面加载时调用getLocalStorageDensity函数获取本地存储的值，然后将其赋值给select标签的name属性，即可实现实时变动。修改后的代码如下：

<select class="layui-btn layui-btn-sm" id="nailDensity" onchange="setLocalStorageDensity(value)" name="">
    <option value="" selected>请选择钉码浓度</option>
    <option value="0">钉码浓度0</option>
    <option value="7">钉码浓度7</option>
    <option value="15">钉码浓度15</option>
</select>

<script>
    function setLocalStorageDensity(density) {
        // 设置本地存储数据
        localStorage.setItem("yxgj_printer_density", density);
        // 更新select标签的name属性
        document.getElementById("nailDensity").name = density;
    }

    function getLocalStorageDensity() {
        // 获取本地存储数据
        density = localStorage.getItem("yxgj_printer_density");
        // 更新select标签的name属性
        document.getElementById("nailDensity").name = density;
    }

    // 页面加载时调用getLocalStorageDensity函数
    getLocalStorageDensity();
</script>