elemen-table分页多选

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 1. 在el-table中添加 :row-key="getRowKeys"

  <el-table
          :data="data"
          :row-key="getRowKeys"
        >

 getRowKeys(row) {
      return row.id;
    },

 <el-table
          :data="data"
          :row-key="getRowKeys"
          @selection-change="handleSelectionChange"
        >


  handleSelectionChange(rows) {
      console.log(rows);
    },

2.在表格多选那一栏添加:reserve-selection="true"

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

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