方法一

<el-date-picker

            clearable

            v-model="newContract.deadline"

            type="daterange"

            value-format="yyyy-MM-dd hh:mm:ss"

            range-separator="至"

            start-placeholder="开始日期"

            end-placeholder="结束日期"

            @input="changeError($event)"

            class="type"

          ></el-date-picker>

methods：{

// 输入框输入问题

    changeError () {

      this.$forceUpdate()

    },

} 

方法二：直接在行内写

  @change="$forceUpdate()"

如下：

<el-select

            v-model="newContract.signedAccountId"

            filterable

            clearable

            placeholder="请选择"

            class="type"

            @change="$forceUpdate()"

          >

            <el-option

              v-for="item in linkManList"

              :key="item.value"

              :label="item.name"

              :value="item.id"

            ></el-option>

          </el-select>