<template> <div> <el-checkbox v-model="isAllSelected" @change="handleSelectAll" >全选</el-checkbox > <div v-for="(tableData, index) in tableList" :key="index"> <el-checkbox v-model="selectedTables[index]" @change="handleTableSelect(index)" > {{ tableData.tableName }} </el-checkbox> <el-table :data="tableData.list" > <el-table-column type="selection"></el-table-column> <!-- 表格其他列 --> <el-table-column label="名称" align="center" prop="name" /> <el-table-column label="code" align="center" prop="code" /> </el-table> </div> </div> </template> 加勾选事件

在这段代码中，我们可以为每个el-table添加一个选中状态，然后在全选按钮选中时，将所有el-table的选中状态都设置为true，并且将每一行数据的选中状态设置为true；在全选按钮取消选中时，将所有el-table的选中状态都设置为false，并且将每一行数据的选中状态设置为false。具体的实现如下：

<template>
  <div>
    <el-checkbox v-model="isAllSelected" @change="handleSelectAll">全选</el-checkbox>
    <div v-for="(tableData, index) in tableList" :key="index">
      <el-checkbox v-model="tableSelected[index]" @change="handleTableSelect(index)">
        {{ tableData.tableName }}
      </el-checkbox>
      <el-table :data="tableData.list">
        <el-table-column type="selection"></el-table-column>
        <el-table-column label="名称" align="center" prop="name" />
        <el-table-column label="code" align="center" prop="code" />
      </el-table>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isAllSelected: false,
      tableSelected: [],
      tableList: [
        {
          tableName: "Table1",
          list: [
            { name: "A", code: "A1" },
            { name: "B", code: "B1" }
          ]
        },
        {
          tableName: "Table2",
          list: [
            { name: "C", code: "C1" },
            { name: "D", code: "D1" }
          ]
        }
      ]
    };
  },
  methods: {
    handleSelectAll(val) {
      this.isAllSelected = val;
      if (val) {
        this.tableSelected = this.tableList.map(() => true);
        this.tableList.forEach(tableData => {
          tableData.list.forEach(item => {
            item.isSelected = true;
          });
        });
      } else {
        this.tableSelected = this.tableList.map(() => false);
        this.tableList.forEach(tableData => {
          tableData.list.forEach(item => {
            item.isSelected = false;
          });
        });
      }
    },
    handleTableSelect(index) {
      this.tableSelected[index] = !this.tableSelected[index];
      this.tableList[index].list.forEach(item => {
        item.isSelected = this.tableSelected[index];
      });
      this.isAllSelected = this.tableSelected.every(val => val);
    }
  },
  created() {
    this.tableSelected = this.tableList.map(() => false);
    this.tableList.forEach(tableData => {
      tableData.list.forEach(item => {
        item.isSelected = false;
      });
    });
  }
};
</script>

在上面的代码中，我们为每个el-table添加了一个tableSelected选中状态数组，并在handleSelectAll方法中更新了它们的状态。同时，我们也为每一行数据添加了一个isSelected选中状态，并在handleTableSelect方法中更新了它们的状态。最后，我们在created钩子中初始化了所有的选中状态。