jili2/application/admin/view/common/multiselect2.html

<style>

</style>
<div id="{$name}">
    <input type="hidden" id="ele-{$name}" name="{$name}" :value="value.join(',')">
    <el-select
        v-model="value"
        multiple
        filterable
        clearable
        size="small"
        style="width:100%"
        placeholder="请选择"
    >
        <el-option
                v-for="item in options"
                :key="item.id"
                :label="item.title"
                :value="item.id.toString()">
        </el-option>
    </el-select>
</div>
<script>
    new Vue({
        el: '#{$name}',
        data: function() {
            return {
                options: {:json_encode($lists)},
                value: {:json_encode($val)}
            }
        },
        watch: {
            value: function (newVal, oldVal) {
               $('#ele-{$name}').val(newVal.join(','));
            }
        },
        created(){
            const vals = this.value;
            this.value = [];
            vals.forEach((item) => {
                this.value.push(item.toString());
            })
            console.log('11111',this.value,this.options);
        }
    })
</script>