在Vue中进行数据分页的实现方法

<template>
  <div>
    <ul>
      <li v-for="item in displayedItems" :key="item.id">{{ item.name }}</li>
    </ul>
    <button @click="prevPage" :disabled="currentPage === 1">上一页</button>
    <span>{{ currentPage }} / {{ totalPages }}</span>
    <button @click="nextPage" :disabled="currentPage === totalPages">下一页</button>
  </div>
</template>
<script>
export default {
  data() {
    return {
      allItems: [], // 所有数据
      pageSize: 10, // 每页数据量
      currentPage: 1, // 当前页
    };
  },
  computed: {
    // 计算属性：当前页要显示的数据子集
    displayedItems() {
      const start = (this.currentPage - 1) * this.pageSize;
      const end = start + this.pageSize;
      return this.allItems.slice(start, end);
    },
    // 计算属性：总页数
    totalPages() {
      return Math.ceil(this.allItems.length / this.pageSize);
    },
  },
  methods: {
    prevPage() {
      if (this.currentPage > 1) {
        this.currentPage--;
      }
    },
    nextPage() {
      if (this.currentPage < this.totalPages) {
        this.currentPage++;
      }
    },
  },
};
</script>

<template>
  <div>
    <ul>
      <li v-for="item in displayedItems" :key="item.id">{{ item.name }}</li>
    </ul>
    <button @click="prevPage" :disabled="currentPage === 1">上一页</button>
    <span>{{ currentPage }} / {{ totalPages }}</span>
    <button @click="nextPage" :disabled="currentPage === totalPages">下一页</button>
  </div>
</template>
<script>
export default {
  props: {
    items: Array, // 所有数据
    pageSize: Number, // 每页数据量
  },
  data() {
    return {
      currentPage: 1, // 当前页
    };
  },
  computed: {
    // 计算属性：当前页要显示的数据子集
    displayedItems() {
      const start = (this.currentPage - 1) * this.pageSize;
      const end = start + this.pageSize;
      return this.items.slice(start, end);
    },
    // 计算属性：总页数
    totalPages() {
      return Math.ceil(this.items.length / this.pageSize);
    },
  },
  methods: {
    prevPage() {
      if (this.currentPage > 1) {
        this.currentPage--;
      }
    },
    nextPage() {
      if (this.currentPage < this.totalPages) {
        this.currentPage++;
      }
    },
  },
};
</script>

<template>
  <div>
    <!-- 数据列表 -->
    <pagination :items="data" :pageSize="10"></pagination>
  </div>
</template>
<script>
import Pagination from './Pagination.vue';
export default {
  components: {
    Pagination,
  },
  data() {
    return {
      data: [], // 所有数据
    };
  },
  // 获取数据的方法，例如从API请求数据
  methods: {
    fetchData() {
      // 获取数据逻辑
      // 更新 this.data
    },
  },
  created() {
    this.fetchData();
  },
};
</script>