问题：
el-table中实现单选，选中一个其他的取消选中
代码：
<template><div><el-table:data="tableData"@selection-change="handleSelectionChange"ref="singleTable"highlight-current-row><el-table-columntype="selection"width="55"></el-table-column><el-table-columnprop="name"label="姓名"></el-table-column><el-table-columnprop="address"label="地址"></el-table-column></el-table></div>
</template><script>
export default {data() {return {tableData: [{name: '王小虎',address: '上海市普陀区金沙江路 1518 弄'}, {name: '张三',address: '上海市普陀区金沙江路 1517 弄'}],selectedRow: null // 用于存储当前选中的行};},methods: {handleSelectionChange(selection) {if (Array.isArray(selection) && selection.length > 1) {//点击勾选框this.$refs.singleTable.toggleRowSelection(selection[0],false);this.$refs.singleTable.toggleRowSelection(selection[1],true);this.selectedRow = selection[1];}else if (Array.isArray(selection) && selection.length === 1){this.selectedRow = selection[0];}else {this.selectedRow = null;}},}
};
</script>```
