vue选择下拉框动态变化表单方式

    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="120px" class="demo-ruleForm">
      <el-form-item label="名称" prop="name">
        <el-input v-model="ruleForm.name" maxLength="20" "></el-input>
      </el-form-item>
      <el-form-item label="方式" prop="type">
        <el-select v-model="ruleForm.type" placeholder="请选择方式" style="width:100%;" @change="changeType" >
          <el-option v-for="(item, index) in typeList" :key="index" :label="item.name" :value="item.type"></el-option>
        </el-select>
      </el-form-item>
      <template v-for="(item, index) in Object.keys(ruleForm.info)">
        <el-form-item v-if="getNameByOptions(item)" :label="getNameByKey(item)" :prop="`info.${item}`" :key="index"
          :rules="{ required: true, message: `${getNameByKey(item)}不能为空`, trigger: 'change' }">
          <el-select v-model="ruleForm.info[item]" :placeholder="`请选择${getNameByKey(item)}`" style="width:100%;" >
            <el-option v-for="(ele, key) in getNameByOptions(item)" :key="key" :label="ele.label" :value="ele.value"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item v-else :label="getNameByKey(item)" :prop="`info.${item}`" :key="index"
        :rules="{ required: true, message: `${getNameByKey(item)}不能为空`, trigger: 'blur' }">
          <el-input v-model="ruleForm.info[item]" maxLength="20"></el-input>
        </el-form-item>
      </template>
    </el-form>

  data() {
    return {
      ruleForm: {
        type: '',
        name: '',
        remark: '',
        info: {}
      },
      rules: {
        name: [
          { required: true, message: '请输入名称', trigger: 'blur' }
        ]
      },
      curForm: [],
      typeList: [] // 数据源类型
    }
  },
  methods: {
    // 选择不同的接入方式，输出不同的输入框
    changeType(val) {
      this.ruleForm.info = {}
      this.typeList.forEach(item => {
        if (item.type === val) {
          this.curForm = item.props
        }
      })
      this.curForm.forEach(item => {
        this.$set(this.ruleForm.info, item.field, '')
      })
    },
     // 根据 key 获取 label
    getNameByKey (key) {
      return this.curForm.find(item => item.field === key).label
    },
    // 根据 key 获取 options
    getNameByOptions (key) {
      return this.curForm.find(item => item.field === key).options
    }
  }

<el-form ref="shopArr" :model="shopArr" :rules="shopRules">
        <table v-for="(item,index) in shopArr" :key="index" class="addTableShop">
          <tr>
            <td class="addTable-td1"><div class="table-item"><el-form-item label="1:" prop="settledPlatfoem" label-width="120px" /></div></td>
            <td class="addTable-td2">
              <el-radio-group v-model="item.settledType">
                <el-radio :label="1">淘宝</el-radio>
                <el-radio :label="2">京东</el-radio>
                <el-radio :label="3">天猫</el-radio>
                <el-radio :label="4">拼多多</el-radio>
                <el-radio :label="5">其他
                  <input v-if="item.settledType === 5" v-model="item.settledPlatfoem" placeholder="请输入其他平台" style="width: 105px; margin-left: 10px"/>
                </el-radio>
              </el-radio-group>
            </td>
            <td class="addTable-td1"><div class="table-item"><el-form-item label="2:" prop="shopName" label-width="120px" /></div></td>
            <td class="addTable-td2"><el-input v-model="item.shopName" /></td>
          </tr>
          <tr>
            <td class="addTable-td1"><div class="table-item"><el-form-item label="3:" prop="shopUrl" label-width="120px" /></div></td>
            <td class="addTable-td2"><el-input v-model="item.shopUrl" /></td>
            <td class="addTable-td1"><div class="table-item"><el-form-item label="4:" prop="operatingLicense" label-width="120px" /></div></td>
            <td class="addTable-td2"><el-input v-model="item.operatingLicense" /></td>
          </tr>
        </table>
        <el-button type="text" style="float: right" size="small" @click="addShop">新增</el-button>
        <el-button type="text" style="float: right" size="small" @click="deleteShop">删除</el-button>
      </el-form>

	// 添加表单
    add() {
      const item = {
        settledType: '',
        settledPlatfoem: '',
        shopName: '',
        shopUrl: '',
        operatingLicense: ''
      }
      this.shopArr.push(item)
    }，
    // 删除表单
    deleteShop() {
      this.shopArr.splice(this.shopArr.length - 1, 1)
    },