vue中实现可编辑table及其中加入下拉选项

<template>
    <div>
    
        <el-table :data="tabledatas" border>
            <el-table-column label="姓名">
                <template slot-scope="scope">
                    <el-input placeholder="请输入内容" v-show="scope.row.show" v-model="scope.row.name"></el-input>
                    <span v-show="!scope.row.show">{{scope.row.name}}</span>
                </template>
            </el-table-column>
            
            <el-table-column label="年龄">
                <template slot-scope="scope">
                    <el-input placeholder="请输入内容" v-show="scope.row.show" v-model="scope.row.age"></el-input>
                    <span v-show="!scope.row.show">{{scope.row.age}}</span>
                </template>
            </el-table-column>
            <el-table-column label="地址">
                <template slot-scope="scope">
                    <el-input placeholder="请输入内容" v-show="scope.row.show" v-model="scope.row.address"></el-input>
                    <span v-show="!scope.row.show">{{scope.row.address}}</span>
                </template>
            </el-table-column>
            <el-table-column label="学籍">
              <template slot-scope="scope">
                <span v-show="!scope.row.show">{{scope.row.stu}}</span>
              <el-select v-model="scope.row.stu" placeholder="请选择" v-show="scope.row.show" >
              
                <el-option
                  v-for="item in options"
                  :key="item.stu"
                  :label="item.stu"
                  :value="item.stu">
                </el-option>
              </el-select>
              </template>
            </el-table-column>
            <el-table-column label="操作">
                <template slot-scope="scope">
                    <el-button @click="scope.row.show =true" >编辑</el-button>
                    <el-button @click="scope.row.show =false">保存</el-button>
                </template>
            </el-table-column>
        </el-table>
      </div> 
</template>

<script>
	export default {
		data(){
    	return {
    	options: [{
          	value: '选项1',
          	stu: '初中'
        	}, {
          	value: '选项2',
          	stu: '高中'
        	}, {
	          value: '选项3',
	          stu: '大专'
	        }, {
	          value: '选项4',
	          stu: '本科'
	        }, {
	          value: '选项5',
	          stu: '博士'
	        }],
	        value: '',
	      tabledatas: [
	                    { name: '李一', age: '19',address:"宁波",stu:"本科",show:false},
	                    { name: '郭明', age: '23',address:"四川",stu:"本科",show:false},
	                    { name: '天天', age: '12',address:"海南",stu:"初中",show:false},
	                    { name: '隆', age: '40',address:"上海",stu:"博士",show:false},
	                ],
	    }
	}
</script>

<template slot="header" slot-scope="scope">
  <el-dropdown trigger="click" @command = "handleCommand">
    <span>类型</span>
    <el-dropdown-menu slot="dropdown">
      <el-radio-group v-model="sx">//这里，会出现一个bug，下文有解决办法
        <el-dropdown-item command="属性0"><el-radio label="0">属性0</el-radio> </el-dropdown-item>
        <el-dropdown-item command="属性1"><el-radio label="1">属性1</el-radio> </el-dropdown-item>
        <el-dropdown-item command="属性2"><el-radio label="2">属性2</el-radio> </el-dropdown-item>
        <el-dropdown-item command="属性3"><el-radio label="3">属性3</el-radio> </el-dropdown-item>
        <el-dropdown-item command="属性4"><el-radio label="4">属性4</el-radio> </el-dropdown-item>
        <el-dropdown-item command="属性5"><el-radio label="5">属性5</el-radio> </el-dropdown-item>
        <el-dropdown-item command="属性6"><el-radio label="6">属性6</el-radio> </el-dropdown-item>
      </el-radio-group>
    </el-dropdown-menu>
  </el-dropdown>
</template>
<template slot-scope="scope">（表中元素）</template>

handleCommand(command) {
  if(command == '属性0' ){
    this.sx= '0'
  } else if (command === '属性1') {
    this.sx = '1'
  } else if( command === '属性2') {
    this.sx = '2'
  } else if (command === '属性3') {
    this.sx = '3'
  } else if (command === '属性4') {
    this.sx = '4'
  } else if( command === '属性5') {
    this.sx = '5'
  } else if (command === '属性6') {
    this.sx = '6'
  }
  this.刷新方法;
},

<template slot="header" slot-scope="scope">
  <el-dropdown trigger="click" @command = "handleCommand">
    <span>类型</span>
    <el-dropdown-menu slot="dropdown">
      <el-dropdown-item command="属性0">属性0</el-dropdown-item>
      <el-dropdown-item command="属性1">属性1</el-dropdown-item>
      <el-dropdown-item command="属性2">属性2</el-dropdown-item>
      <el-dropdown-item command="属性3">属性3</el-dropdown-item>
      <el-dropdown-item command="属性4">属性4</el-dropdown-item>
      <el-dropdown-item command="属性5">属性5</el-dropdown-item>
      <el-dropdown-item command="属性6">属性6</el-dropdown-item>
    </el-dropdown-menu>
  </el-dropdown>
</template>
<template slot-scope="scope">（表中元素）</template>