elementui下拉框选中值后未显示在下拉框内，页面发生变化（如在输入框输入，页面大小变化）后下拉框的值才会改变

el-select加上@change就好用了

 <el-select
   @change="searchSelectChange"
   v-model="shipName"
   placeholder="请选择">
   <el-option v-for="item in dict[value.dict]" :key="item.value" :label="item.label" :value="item.value">el-option>
 el-select>

 methods: {
     searchSelectChange() {
       this.$forceUpdate();
     },
 }