vue用于webstorm分页器封装

Pagination.vue

<template>
    <div class="pagination">
        <!-- 上 -->
        <button :disabled="pageNo == 1" @click="getPageNo(pageNo - 1)">
            上一页
        </button>
        <button
            v-if="startNumAndEndNum.start > 1"
            @click="getPageNo(1)"
            :class="{ active: pageNo == 1 }"
        >1
        </button>
        <button
            v-if="startNumAndEndNum.start > 2"
            @click="getPageNo(pageNo - continues)"
        >···
        </button>
        <!-- 中间部分 -->
        <button
            v-for="(page, index) in generateMiddlePage"
            :key="index"
            @click="getPageNo(page)"
            :class="{ active: pageNo == page }">
            {{ page }}
        </button>

        <!-- 下 -->
        <button
            v-if="startNumAndEndNum.end < totalPage - 1"
            @click="getPageNo(pageNo +continues)"
        >···
        </button>
        <button
            v-if="startNumAndEndNum.end < totalPage"
            @click="getPageNo(totalPage)"
            :class="{active:pageNo==totalPage}">
            {{ totalPage }}
        </button>

        <button
            :disabled="pageNo == totalPage"
            @click="getPageNo(pageNo + 1)">
            下一页
        </button>

        <button style="margin-left: 30px">共 {{ total }} 条</button>
    </div>
</template>

<script>

export default {
    // eslint-disable-next-line vue/multi-word-component-names
    name: "Pagination",
    props: ["pageNo", "pageSize", "total", "continues"],
    computed: {
        //计算出总页数
        totalPage() {
            //向上取整
            return Math.ceil(this.total / this.pageSize);
        },
        //计算出页码的起始和结束数字
        startNumAndEndNum() {
            const {continues, pageNo, totalPage} = this;
            //先定义两个变量存储起始数字与结束数字
            let start = 0,
                end = 0;

            if (continues > totalPage) {
                start = 1;
                end = totalPage;
            } else {
                //起始数字
                start = pageNo - parseInt(continues / 2);
                //结束数字
                end = pageNo + parseInt(continues / 2);

                if (start < 1) {
                    start = 1;
                    end = continues;
                }

                if (end > totalPage) {
                    end = totalPage;
                    start = totalPage - continues + 1;
                }
            }
            return {start, end};
        },
        //过滤掉小于起始页的页码
        generateMiddlePage() {
            let arr = [];
            //避免页面中同时使用 v-for和v-if
            for (let i = 0; i <= this.startNumAndEndNum.end; i++) {
                arr.push(i)
            }
            let temp = arr.filter(item => {
                return item >= this.startNumAndEndNum.start
            })
            return temp

        }
    },

        methods: {
            getPageNo(val) {
                //自定义事件子页面向父页面传参，计算属性值
                this.$emit('getPageNo', val)
            },

        }
};
</script>

<style lang="less" scoped>
.pagination {
    text-align: center;

    button {
        margin: 0 5px;
        background-color: #f4f4f5;
        color: #606266;
        outline: none;
        border-radius: 2px;
        padding: 0 4px;
        vertical-align: top;
        display: inline-block;
        font-size: 13px;
        min-width: 35.5px;
        height: 28px;
        line-height: 28px;
        cursor: pointer;
        box-sizing: border-box;
        text-align: center;
        border: 0;

        &[disabled] {
            color: #c0c4cc;
            cursor: not-allowed;
        }

        &.active {
            cursor: not-allowed;
            background-color: #409eff;
            color: #fff;
        }
    }
}

.active {
    background: skyblue;
}
</style>

在需要的页面内引入

import pagination from "@/components/Pagination.vue";

    components: {
        pagination
    },

最后在代码中加入

 <pagination 
 :page-no="page" 
 :page-size="pagesize"
 :total="total" 
 :continues="5" 
 @getPageNo="getPageNo"></pagination>