el-table保留勾选的数据(分页、刷新数据)

1.在el-table中添加行标识 :row-key="val => val.id"，这里最好选择能唯一标识每一行的数据作为key的返回值，否则回选失败

<el-table :row-key="val => val.id" :data="tableList" border style="width: 100%" @selection-change="handleSelectionChange">

2.在复选框那列加上这个属性:reserve-selection="true"

<el-table-column :reserve-selection="true" type="selection" width="55"></el-table-column>

完整代码:

#html:
<el-table :row-key="val => val.id" @selection-change="handleSelectionChange" :data="tableList">
	<el-table-column type="selection" :reserve-selection="true" width="55" />
</el-table>
#js:
<script>
export default {
	data() {
		return {
			selExpertList:[],
		};
	},
	methods: {
		handleSelectionChange(selection) {
		this.selExpertList = JSON.parse(JSON.stringify(selection));
		},
	},
};
</script>