按钮固定底部

src/xt_pages/dialysis/details/dialog/monitor_dialog.vue

           <el-button round @click="deleteRecordAction">删除监测</el-button>
 
         </div>
-        <el-table :header-cell-style="{ backgroundColor: 'rgb(245, 247, 250)'}" ref="table" :data="monitors" border highlight-current-row max-height="300"
+        <el-table :header-cell-style="{ backgroundColor: 'rgb(245, 247, 250)'}" ref="table" :data="monitors" border highlight-current-row 
                   @current-change="tableCurrentRowChange" style="width: 100%" :class="current_row_class">
           <el-table-column label="时间" align="center" width="144">
             <template slot-scope="scope">
           </el-row>
         </el-form>
 
-        <el-row>
-          <el-col :span="24">
-            <div style="text-align: right;">
+        <div slot="footer" class="dialog-footer">
               <el-button @click="cancelEditAction">取 消</el-button>
               <el-button type="primary" @click="submitAction">保 存</el-button>
-            </div>
-          </el-col>
-        </el-row>
+        </div>
       </div>
     </el-dialog>
   </div>