效果如图：
表头标题是重复的、为了能看到滚动效果
v-if="lists[0].ispass" 来判断表格列的状态每一列是否显示或隐藏 勾选则展示、取消勾选隐藏、默认勾选
<el-dropdown :hide-on-click="false">
<i class="iconfont icon-shaixuan" ></i>
<el-dropdown-menu slot="dropdown" >
<el-scrollbar style="height: 60vh">//作用是数据过多把表单数据的整体高度固定、多出的区域可以下拉展示
<el-checkbox-group v-model="check">
<el-dropdown-item v-for="(item,index) in checkList" :key="index"><el-checkbox :label="item" :key="item"></el-checkbox>
</el-dropdown-item>
</el-checkbox-group>
</el-scrollbar>
</el-dropdown-menu>
</el-dropdown>
<el-table :data="institutionalTypeList" border align="center" v-loading="listLoading" style="width: 100%;" :header-cell-style="tableBg">
<af-table-column type="index" :index="indexMethod" label="序号" width="90">
</af-table-column>
<af-table-column v-if="lists[0].ispass" prop="id" label="编码" >
</af-table-column>
<af-table-column v-if="lists[1].ispass" prop="name" label="名称" >
</af-table-column>
<af-table-column v-if="lists[2].ispass" prop="updatetime" label="更新时间" >
</af-table-column>
</el-table>
lists是所有表头标题，check是多选框默认全选，checkList也是所有表头标题、跟多选框绑定的
data() {
return {
check:['编码','名称','更新时间'],
checkList:['编码','名称','更新时间'],
lists:[
{label:'编码',ispass:true},
{label:'名称',ispass:true},
{label:'更新时间',ispass:true},
],
}
},
动态监听值选中的选项
watch:{
check(newVal){
if (newVal) {
var arr = this.checkList.filter(i => newVal.indexOf(i) < 0) //未选中
this.lists.map(i => {
if (arr.indexOf(i.label) !== -1) {
i.ispass = false
} else {
i.ispass = true
}
})
}
}
},
