<el-table :data="items" @selection-change="handleSelectionChange">
  <el-table-column type="index"></el-table-column>
  <el-table-column prop="action" label="操作">
    <template slot-scope="scope">
      <el-button v-if="!isLoading[scope.$index]" @click="loadData(scope.$index)" :disabled="isLoading[scope.$index]">加載</el-button>
      <!-- 加載中狀態(tài) -->
      <span v-if="isLoading[scope.$index]">加載中...</span>
    </template>
  </el-table-column>
</el-table>

data() {
  return {
    items: [],
    isLoading: Array.from({ length: this.items.length }, () => false),//此處可以放在接口中
  };
},

methods: {
  loadData(index) {
    this.isLoading[index] = true; // 設置為加載狀態(tài)
    this.fetchData(index).then(() => {
      // 調整狀態(tài)為已完成
      this.isLoading[index] = false;
      //如果沒有響應式用下面的設置
       //this.$set(this.isLoading, index, false);
    }).catch(() => {
      // 處理加載失敗
    });
  },
  fetchData(index) {
    return new Promise((resolve, reject) => {
      // 模擬異步加載
      setTimeout(() => {
        // 假設這里是你獲取數據的邏輯
        this.items[index].dataToLoad = '數據內容';
        resolve();
      }, 2000); // 加載時間
    });
  },
},

handleSelectionChange(selection) {
  selection.forEach((index) => {
    this.loadData(index);
  });
},