el-select 因类型原因不能正确显示label

<el-select size="medium" placeholder="充值状态" style="width: 90px" v-model="dialogData.chargetype">
    <el-option
      v-for="item in chargeOptions"
      :key="item.value"
      :label="item.label"
      :value="(('' + item.value).trim() == '')?'':parseInt(item.value)">
    </el-option>
</el-select>