一，常规使用

1，实现效果

2，具体代码

 <el-table
    :data="tableData"
    header-row-class-name="header_row_className"
    :header-cell-style="{
    'background-color': '#E5EEFF'
    }"
  @selection-change="handleSelectionChange"
   style="width: 100%">
      <el-table-column
          type="selection"
          label="全选"
          align="center"
          v-if="state==0|| state==8|| state==1"
          width="80">
        </el-table-column>
      <el-table-column
      align="center"
      prop="wx_code"
      label="订单号"
      >
       <template slot-scope="scope">
         <div>
           <span class="redCircle"></span>
            <a class="tab_a" @click="toDetail(scope,'订单详情')">{{scope.row.wx_code}}</a>
            <span>(待打印)</span>
         </div>
       </template>
    </el-table-column>
    <el-table-column
        label="类型"
        align="center"
        >
        <template slot-scope="scope">
          <div>{{scope.row.takeaway=='0'?'到店订单':'外卖点餐'}}</div>
        </template>
    </el-table-column>
    <el-table-column
        prop="small_code"
        label="桌位号/取餐号"
        align="center"
        >
    </el-table-column>
    <el-table-column
      prop="shop_admin_phone"
      label="操作员"
      align="center"
      width="100">
    </el-table-column>
    <el-table-column
        prop="parent_payment"
        label="支付方式"
        align="center"
        >
        <template slot-scope="scope">
          <div class="green" v-if="scope.row.parent_payment==1001">现金支付</div>
          <div class="green" v-if="scope.row.parent_payment==1002">签单记账</div>
          <div class="green" v-if="scope.row.parent_payment==1003">线下刷卡</div>
          <div class="green" v-if="scope.row.parent_payment==1004">线上支付</div>
          <div class="green" v-if="scope.row.parent_payment==1005">龙支付</div>
         </template>
    </el-table-column>
    <el-table-column
        prop="pay_money"
        label="订单支付金额"
        align="center"
        >
    </el-table-column>
    <el-table-column
        prop="grand_total"
        label="总计(结算金额)"
        align="center"
        >
    </el-table-column>
    <el-table-column
        prop="refund_penging_fee"
        label="待退款金额"
        align="center"
        >
    </el-table-column>
    <el-table-column
        prop="refund_fee"
        label="已退款金额"
        align="center"
        >
    </el-table-column>
    <el-table-column
        prop="status"
        label="状态"
        align="center"
        >
        <template slot-scope="scope">
          <div>{{scope.row.closed=='0'?'未关闭':'已关闭'}}</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==0">(未付款)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==1">(已付款)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==2">(配送中)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==5">(退款审核)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==6">(全额退款)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==7">(部分退款)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==8">(已下单)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==9">(已完成)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==2101">配送中(待配送员接单)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==2102">配送中(配送员已接单)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==2103">配送中(配送员配送中)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==2104">配送中(配送员配送完成)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==2105">配送中(配送员取消配送)</div>
          <div class="green" v-if="scope.row.closed=='0' && scope.row.status==2106">配送中(配送员申请取消)</div>
         </template>
    </el-table-column>
    <el-table-column
        prop="create_date"
        label="下单时间"
        align="center"
        >
    </el-table-column>
    <el-table-column
      prop="operation"
      label="操作"
      align="center"
      width="180">
     <template slot-scope="scope">
     <div class="operationVid">
       <span class="operationBef" @click="payList(scope)" v-if="handleMenu_1(scope.row)=='付款'">付款</span>
       <span class="operationBef" @click="operFinish(scope)" v-if="handleMenu_1(scope.row)=='完成'">完成</span>
       <span class="operationBef" @click="operFinish(scope)" v-if="handleMenu_1(scope.row)=='审核'">审核</span>
       <el-dropdown trigger="click" @command="handleCommand">
            <span class="el-dropdown-link">
              更多<i class="el-icon-arrow-down el-icon--right"></i>
            </span>
            <el-dropdown-menu slot="dropdown">
                <el-dropdown-item :command="beforeHandleCommand(scope,'订单详情')" v-if="handleMenu_2(scope.row).has('订单详情')">订单详情</el-dropdown-item>
                <el-dropdown-item :command="beforeHandleCommand(scope,'前台打印')" v-if="handleMenu_2(scope.row).has('前台打印')">前台打印</el-dropdown-item>
                <el-dropdown-item :command="beforeHandleCommand(scope,'后厨打印')" v-if="handleMenu_2(scope.row).has('后厨打印')">后厨打印</el-dropdown-item>
                <el-dropdown-item :command="beforeHandleCommand(scope,'订单退款')"  v-if="handleMenu_2(scope.row).has('订单退款')">订单退款</el-dropdown-item>
                <el-dropdown-item :command="beforeHandleCommand(scope,'关闭订单')" v-if="handleMenu_2(scope.row).has('关闭订单')">关闭订单</el-dropdown-item>
              </el-dropdown-menu>
        </el-dropdown>
    </div>
     </template>
    </el-table-column>
  </el-table>

多选的处理：

    //处理表格多选
    handleSelectionChange(val) {
      this.multipleSelection = val;
      this.selectArray=this.multipleSelection.map((item)=>{
        let id=item.id
        return id
      })
    },

二，某一列的样式表更

具体代码：

//element ui中的一个表格样式修改
        changeCellStyle(row) {
            if (row.column.label === "商品类目") {
                return "background-color: #E5EEFF"; // 修改的样式
            } else {
                return "color: #000000";
            }
        },  

官网资料：

三，某行类型特别多的情况

		<el-table-column prop="source" label="种类" align="center" width="100">
          <template slot-scope="scope">
				<span>{{ source[scope.row.source] }}</span>
			</template>
        </el-table-column>

	data() {
		return {
      source:{
        1:'飞鹅打印机',
        2:'瑞工打印机',
        3:'飞蛾标签打印机',
        4:'斯普瑞标签打印机',
        5:'斯普锐打印机',
        6:'序号为6的打印机'
      },
	}
},

也就是说{{}}里其实可以写js表达式（表达式和语句是有区别的），它的作用域就是当前的vue文件，所以通过js对象的形式，就可以把多个类别比较优雅地写出来。