IVIEW中的Select下拉框搜索时没有匹配项时失去焦点清空input框（记得加ref清空input框数据，因为清空v-model无法彻底清空，这是iview中的一个小bug）

<Select ref="vendorId" v-model="formInline.vendorId" @on-open-change="venSelect" filterable style="width: 162px;" clearable>

            <Option v-for="item in vendorList" :value="item.vendorId" :key="item.vendorId">

              {{ item.vendorLevel ? `${item.vendorLevel}-${item.venAbbName}-${item.vendorCode}` : `${item.venAbbName}-${item.vendorCode}` }}

            </Option>

          </Select>

venSelect(type){

        if(type === false){

          // 供应商不选置空

          if(!this.formInline.vendorId){

            this.$refs.vendorId.query = ''

            return

          }

        }

      },