数组对象怎么变字符串呀！

以下代码

<template>
  <div class="selector">
    <div class="selector-left">
      <div
        class="selector-left-tag"
        v-for="(tag, index) in tags"
        :key="index"
        @click="rightTransfer(tag, index)"
      >
        {{ tag.label }}
      div>
    div>
    <div class="selector-line">div>
    <div class="selector-right">
      <div
        class="selector-right-tag"
        v-for="(sel, index) in selectedTags"
        :key="index"
        @click="letfTransfer(sel, index)"
      >
        {{ sel.label }}
      div>
    div>
    <div class="selector-line-btn">
      <button @click="sendTags">确认button>
    div>
  div>
template>

<script>
export default {
  name: "tagSelect",
  props: {
    value: () => "",
  },
  data() {
    return {
      tags: [
        { label: "标签1", id: 1 },
        { label: "标签3", id: 3 },
        { label: "标签2", id: 2 },
        { label: "标签5", id: 5 },
        { label: "标签4", id: 4 },
        { label: "标签6", id: 6 },
      ],
      selectedTagIds: [],
      selectedTags: [],
    };
  },
  created() {
    this.tags.forEach((i, index) => {
      i.sortIndex = index;
      console.log(i);
    });
  },
  methods: {
    rightTransfer(val, index) {
      this.selectedTags.push({ ...val });
      this.tags.splice(index, 1);
      this.selectedTagIds.push(val.id);
    },
    letfTransfer(val, index) {
      // this.tags.push({ ...val });
      this.selectedTags.splice(index, 1);
      this.selectedTagIds.splice(index, 1);
      this.tags.splice(val.sortIndex, 0, val);
    },
    sendTags() {
      this.$emit("change", this.selectedTagIds, this.selectedTags);
    },
  },
};
script>

<style lang="scss">
.selector {
  width: 500px;
  height: 300px;
  border: 1px solid #aaa;
  position: relative;
  display: flex;
  justify-content: space-between;
  .selector-left {
    margin-top: 50px;
    margin-left: 30px;
    cursor: pointer;
  }
  .selector-right {
    margin-top: 50px;
    margin-right: 36%;
    cursor: pointer;
  }
  .selector-line {
    position: absolute;
    top: 25px;
    left: 50%;
    width: 1px;
    height: 200px;
    background-color: #aaa;
  }
  .selector-line-btn {
    position: absolute;
    bottom: 50px;
    width: 500px;
    height: 1px;
    background-color: #aaa;
    & button {
      position: absolute;
      top: 10px;
      right: 10px;
      width: 50px;
      height: 30px;
    }
  }
}
style>

选中的标签是数组包含对象的形式，我怎么才能把它变成字符串呀

那你处理 一下呗 sel值 push或者 处理时 。只保留 label值 。
letfTransfer 里 对 selectedTags 。再处理一下 。
let arr=[];
this. selectedTag.map((item)=>{
arr.push(item.label)
})

this.this. selectedTag=arr

你是想要显示成什么样的字符串