vue前端下拉框设置一个默认值

Question

  <a-col :span="12">
            <a-form-model-item label="事发区域" :labelCol="labelCol" :wrapperCol="wrapperCol" prop="shifaquyu">
              <j-dict-select-tag type="list" v-model="model.shifaquyu" dictCode="AREA" placeholder="请选择事发区域" />
            </a-form-model-item>
          </a-col>

这个下拉框需要设置个默认值，应该怎么设置

Answer 1

<j-dict-select-tag v-decorator="['key', {}]" :triggerChange="true"