element 設置列

<template>
  <div class="mod">
    <div class="info">
      <ul>
        <li v-for="e,i in cols" @click="del(e,i)">{{e.label}}</li>
      </ul>
    </div>
    <el-table :data="tableData" border style="width: 100%" :row-class-name="tableRowClassName">
      <el-table-column type="selection" width="55"></el-table-column>
      <template v-for="(e,i) in cols" v-if="flag.indexOf(e.prop) == -1">
        <el-table-column :prop="e.prop" :label="e.label"></el-table-column>
      </template>
      <el-table-column fixed="right" label="操作" width="100">
        <template slot-scope="scope">
          <el-button @click="handleClick(scope.row)" type="text" size="small">刪除</el-button>
        </template>
      </el-table-column>
    </el-table>
  </div>
</template>

<script>
export default {
  data() {
    return {
      cols: [
        { label: "姓名", prop: "name", id: 1 },
        { label: "日期", prop: "date", id: 2 },
        { label: "地址", prop: "address", id: 3 }
      ],
      flag: [],
      tableData: [
        {
          date: "2016-05-02",
          name: "王小虎1",
          address: "上海市普陀區金沙江路 1518 弄",
          id: 1,
          fig: true
        },
        {
          date: "2016-05-04",
          name: "王小虎2",
          address: "上海市普陀區金沙江路 1517 弄",
          id: 2,
          fig: true
        },
        {
          date: "2016-05-01",
          name: "王小虎3",
          address: "上海市普陀區金沙江路 1519 弄",
          id: 3,
          fig: true
        },
        {
          date: "2016-05-03",
          name: "王小虎4",
          address: "上海市普陀區金沙江路 1516 弄",
          id: 4,
          fig: true
        }
      ],
      id: ""
    };
  },
  methods: {
    handleSelect(key, keyPath) {
      if (key == 1) {
        this.$router.push({ path: "/demo" });
      }
    },
    tableRowClassName({ row, rowIndex }) {
      if (row.fig == false) {
        return "warning-row";
      } else {
        return "";
      }
    },
    handleClick(row) {
      row.fig = false;
    },
    del(e, i) {
      console.log(e, i);
      this.flag.push(e.prop)
    },
  }
};
</script>

<style scoped>
</style>
<style>
.mod .el-table .warning-row {
  display: none;
}
.info {
  display: flex;
}
</style>