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363 lines
8.3 KiB
363 lines
8.3 KiB
4 years ago
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<template>
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<view class="uni-pagination">
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<!-- #ifndef APP-NVUE -->
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<view class="uni-pagination__total is-phone-hide">共 {{ total }} 条</view>
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<!-- #endif -->
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<view class="uni-pagination__btn" :class="currentIndex === 1 ? 'uni-pagination--disabled' : 'uni-pagination--enabled'" :hover-class="currentIndex === 1 ? '' : 'uni-pagination--hover'" :hover-start-time="20" :hover-stay-time="70" @click="clickLeft">
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<template v-if="showIcon === true || showIcon === 'true'">
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<uni-icons color="#666" size="16" type="arrowleft" />
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</template>
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<template v-else>
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<text class="uni-pagination__child-btn">{{ prevText }}</text>
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</template>
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</view>
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<view class="uni-pagination__num uni-pagination__num-flex-none">
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<view class="uni-pagination__num-current">
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<text class="uni-pagination__num-current-text is-pc-hide" style="color:#409EFF">{{ currentIndex }}</text>
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<text class="uni-pagination__num-current-text is-pc-hide">/{{ maxPage || 0 }}</text>
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<!-- #ifndef APP-NVUE -->
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<view v-for="(item, index) in paper" :key="index" :class="{ 'page--active': item === currentIndex }" class="uni-pagination__num-tag tag--active is-phone-hide" @click.top="selectPage(item, index)">
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<text>{{ item }}</text>
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</view>
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<!-- #endif -->
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</view>
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</view>
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<view class="uni-pagination__btn" :class="currentIndex >= maxPage ? 'uni-pagination--disabled' : 'uni-pagination--enabled'" :hover-class="currentIndex === maxPage ? '' : 'uni-pagination--hover'" :hover-start-time="20" :hover-stay-time="70" @click="clickRight">
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<template v-if="showIcon === true || showIcon === 'true'">
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<uni-icons color="#666" size="16" type="arrowright" />
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</template>
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<template v-else>
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<text class="uni-pagination__child-btn">{{ nextText }}</text>
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</template>
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</view>
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</view>
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</template>
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<script>
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/**
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* Pagination 分页器
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* @description 分页器组件，用于展示页码、请求数据等
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* @tutorial https://ext.dcloud.net.cn/plugin?id=32
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* @property {String} prevText 左侧按钮文字
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* @property {String} nextText 右侧按钮文字
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* @property {Number} current 当前页
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* @property {Number} total 数据总量
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* @property {Number} pageSize 每页数据量
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* @property {Number} showIcon = [true|false] 是否以 icon 形式展示按钮
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* @event {Function} change 点击页码按钮时触发 ,e={type,current} current为当前页，type值为：next/prev，表示点击的是上一页还是下一个
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*/
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export default {
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name: 'UniPagination',
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props: {
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value: {
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type: [Number, String],
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default: 1
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},
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prevText: {
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type: String,
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default: '上一页'
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},
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nextText: {
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type: String,
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default: '下一页'
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},
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current: {
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type: [Number, String],
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default: 1
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},
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total: {
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// 数据总量
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type: [Number, String],
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default: 0
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},
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pageSize: {
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// 每页数据量
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type: [Number, String],
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default: 10
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},
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showIcon: {
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// 是否以 icon 形式展示按钮
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type: [Boolean, String],
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default: false
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},
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pagerCount: {
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type: Number,
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default: 7
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}
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},
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data() {
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return {
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currentIndex: 1,
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paperData: []
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}
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},
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computed: {
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maxPage() {
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let maxPage = 1
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let total = Number(this.total)
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let pageSize = Number(this.pageSize)
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if (total && pageSize) {
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maxPage = Math.ceil(total / pageSize)
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}
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return maxPage
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},
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paper() {
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const num = this.currentIndex
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// TODO 最大页数
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const pagerCount = this.pagerCount
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// const total = 181
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const total = this.total
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const pageSize = this.pageSize
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let totalArr = []
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let showPagerArr = []
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let pagerNum = Math.ceil(total / pageSize)
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for (let i = 0; i < pagerNum; i++) {
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totalArr.push(i + 1)
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}
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showPagerArr.push(1)
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const totalNum = totalArr[totalArr.length - (pagerCount + 1) / 2]
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totalArr.forEach((item, index) => {
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if ((pagerCount + 1) / 2 >= num) {
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if (item < pagerCount + 1 && item > 1) {
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showPagerArr.push(item)
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}
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} else if (num + 2 <= totalNum) {
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if (item > num - (pagerCount + 1) / 2 && item < num + (pagerCount + 1) / 2) {
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showPagerArr.push(item)
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}
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} else {
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if ((item > num - (pagerCount + 1) / 2 || pagerNum - pagerCount < item) && item < totalArr[totalArr.length - 1]) {
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showPagerArr.push(item)
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}
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}
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})
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if (pagerNum > pagerCount) {
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if ((pagerCount + 1) / 2 >= num) {
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showPagerArr[showPagerArr.length - 1] = '...'
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} else if (num + 2 <= totalNum) {
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showPagerArr[1] = '...'
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showPagerArr[showPagerArr.length - 1] = '...'
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} else {
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showPagerArr[1] = '...'
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}
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showPagerArr.push(totalArr[totalArr.length - 1])
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} else {
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if ((pagerCount + 1) / 2 >= num) {} else if (num + 2 <= totalNum) {} else {
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showPagerArr.shift()
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showPagerArr.push(totalArr[totalArr.length - 1])
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}
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}
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return showPagerArr
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}
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},
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watch: {
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current(val) {
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this.currentIndex = val
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},
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value(val) {
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if (val < 1) {
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this.currentIndex = 1
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} else {
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this.currentIndex = val
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}
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}
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},
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created() {
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this.currentIndex = +this.value
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},
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methods: {
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// 选择标签
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selectPage(e, index) {
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if (parseInt(e)) {
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this.currentIndex = e
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this.change('current')
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} else {
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let pagerNum = Math.ceil(this.total / this.pageSize)
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// let pagerNum = Math.ceil(181 / this.pageSize)
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// 上一页
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if (index <= 1) {
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if (this.currentIndex - 5 > 1) {
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this.currentIndex -= 5
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} else {
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this.currentIndex = 1
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}
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return
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}
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// 下一页
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if (index >= 6) {
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if (this.currentIndex + 5 > pagerNum) {
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this.currentIndex = pagerNum
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} else {
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this.currentIndex += 5
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}
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return
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}
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}
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},
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clickLeft() {
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if (Number(this.currentIndex) === 1) {
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return
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}
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this.currentIndex -= 1
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this.change('prev')
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},
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clickRight() {
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if (Number(this.currentIndex) >= this.maxPage) {
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return
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}
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this.currentIndex += 1
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this.change('next')
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},
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change(e) {
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this.$emit('input', this.currentIndex)
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this.$emit('change', {
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type: e,
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current: this.currentIndex
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})
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}
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}
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}
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</script>
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<style scoped>
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.uni-pagination {
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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position: relative;
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overflow: hidden;
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flex-direction: row;
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justify-content: center;
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align-items: center;
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}
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.uni-pagination__total {
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font-size: 14px;
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color: #999;
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margin-right: 15px;
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}
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.uni-pagination__btn {
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/* #ifndef APP-NVUE */
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display: flex;
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cursor: pointer;
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/* #endif */
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padding: 0 8px;
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line-height: 30px;
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font-size: 14px;
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position: relative;
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background-color: #f4f4f5;
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flex-direction: row;
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justify-content: center;
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align-items: center;
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text-align: center;
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}
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.uni-pagination__child-btn {
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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font-size: 14px;
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position: relative;
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flex-direction: row;
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justify-content: center;
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align-items: center;
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text-align: center;
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}
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.uni-pagination__num {
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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flex: 1;
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flex-direction: row;
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justify-content: center;
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align-items: center;
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height: 30px;
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line-height: 30px;
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font-size: 14px;
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color: #333;
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margin: 0 5px;
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}
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.uni-pagination__num-tag {
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/* #ifdef H5 */
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cursor: pointer;
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min-width: 30px;
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/* #endif */
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margin: 0 5px;
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height: 30px;
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text-align: center;
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line-height: 30px;
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color: #666;
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}
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.uni-pagination__num-current {
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/* #ifndef APP-NVUE */
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display: flex;
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/* #endif */
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flex-direction: row;
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}
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.uni-pagination__num-current-text {
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font-size: 15px;
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}
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.uni-pagination--enabled {
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color: #333333;
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opacity: 1;
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}
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.uni-pagination--disabled {
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opacity: 0.5;
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/* #ifdef H5 */
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cursor: default;
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/* #endif */
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}
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.uni-pagination--hover {
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color: rgba(0, 0, 0, 0.6);
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background-color: #f1f1f1;
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}
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.tag--active:hover {
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color: #007aff;
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}
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.page--active {
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color: #fff;
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background-color: #007aff;
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}
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.page--active:hover {
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color: #fff;
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}
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/* #ifndef APP-NVUE */
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.is-pc-hide {
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display: block;
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}
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.is-phone-hide {
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display: none;
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}
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@media screen and (min-width: 450px) {
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.is-pc-hide {
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display: none;
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}
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.is-phone-hide {
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display: block;
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}
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.uni-pagination__num-flex-none {
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flex: none;
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}
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}
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/* #endif */
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</style>
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