用vue3和elementPlus写一个下拉多选并且支持可输入的组件

好的，以下是用 Vue3 和 Element Plus 写一个下拉多选并且支持可输入的组件的代码：

<template>
  <el-select
    v-model="selectedOptions"
    multiple
    filterable
    remote
    reserve-keyword
    :remote-method="remoteMethod"
    :loading="loading"
    :popper-append-to-body="false"
    :default-first-option="false"
    :collapse-tags="true"
    placeholder="请选择"
  >
    <el-option
      v-for="item in options"
      :key="item.value"
      :label="item.label"
      :value="item.value"
    ></el-option>
  </el-select>
</template>

<script>
import { ref } from 'vue';
import { ElSelect } from 'element-plus';

export default {
  name: 'MultiSelect',
  components: { ElSelect },
  props: {
    options: {
      type: Array,
      default: () => [],
    },
  },
  setup(props) {
    const selectedOptions = ref([]);
    const loading = ref(false);

    const remoteMethod = (query) => {
      loading.value = true;
      setTimeout(() => {
        loading.value = false;
        const results = props.options.filter((option) =>
          option.label.toLowerCase().includes(query.toLowerCase())
        );
        results.length > 0 ? results : [{ label: query, value: query }];
      }, 200);
    };

    return {
      selectedOptions,
      loading,
      remoteMethod,
    };
  },
};
</script>

希望这个代码能够帮到你！