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196 lines
5.6 KiB
Markdown
196 lines
5.6 KiB
Markdown
## Pagination 分页
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当数据量过多时,使用分页分解数据。
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### 基础用法
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:::demo 设置`layout`,表示需要显示的内容,用逗号分隔,布局元素会依次显示。`prev`表示上一页,`next`为上一页,`pager`表示页码列表,除此以外还提供了`jumper`和`total`,`size`和特殊的布局符号`->`,`->`后的元素会靠右显示,`jumper`表示跳页元素,`total`表示显示页码总数,`size`用于设置每页显示的页码数量。
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```html
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<div class="block">
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<span class="demonstration">页数较少时的效果</span>
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<el-pagination
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layout="prev, pager, next"
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:total="50">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">大于 7 页时的效果</span>
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<el-pagination
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layout="prev, pager, next"
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:total="1000">
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</el-pagination>
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</div>
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</div>
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```
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:::
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### 小型分页
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在空间有限的情况下,可以使用简单的小型分页。
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:::demo 只需要一个`small`属性,它接受一个`Boolean`,默认为`false`,设为`true`即可启用。
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```html
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<el-pagination
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small
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layout="prev, pager, next"
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:total="50">
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</el-pagination>
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```
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:::
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### 附加功能
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根据场景需要,可以添加其他功能模块。
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:::demo 此例是一个完整的用例,使用了`sizechange`和`currentchange`事件来处理页码大小和当前页变动时候触发的事件。`page-sizes`接受一个整型数组,数组元素为展示的选择每页显示个数的选项,`[100, 200, 300, 400]`表示四个选项,每页显示 100 个,200 个,300 个或者 400 个。
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```html
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<template>
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<div class="block">
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<span class="demonstration">显示总数</span>
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<el-pagination
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@sizechange="handleSizeChange"
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@currentchange="handleCurrentChange"
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:current-page="5"
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:page-size="100"
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layout="total, prev, pager, next"
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:total="1000">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">调整每页显示条数</span>
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<el-pagination
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@sizechange="handleSizeChange"
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@currentchange="handleCurrentChange"
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:current-page="5"
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:page-sizes="[100, 200, 300, 400]"
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:page-size="100"
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layout="sizes, prev, pager, next"
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:total="1000">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">直接前往</span>
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<el-pagination
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@sizechange="handleSizeChange"
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@currentchange="handleCurrentChange"
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:current-page="5"
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:page-size="100"
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layout="prev, pager, next, jumper"
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:total="1000">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">完整功能</span>
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<el-pagination
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@sizechange="handleSizeChange"
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@currentchange="handleCurrentChange"
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:current-page="5"
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:page-sizes="[100, 200, 300, 400]"
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:page-size="100"
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layout="total, sizes, prev, pager, next, jumper"
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:total="400">
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</el-pagination>
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</div>
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</template>
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<script>
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export default {
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methods: {
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handleSizeChange(val) {
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console.log(`每页 ${val} 条`);
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},
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handleCurrentChange(val) {
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console.log(`当前页: ${val}`);
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}
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}
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}
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</script>
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```
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:::
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<script>
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export default {
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methods: {
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handleSizeChange(val) {
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console.log(`每页 ${val} 条`);
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},
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handleCurrentChange(val) {
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console.log(`当前页: ${val}`);
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}
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},
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mounted() {
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this.$nextTick(() => {
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let demos = document.querySelectorAll('.source');
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let firstDemo = demos[0];
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let lastDemo = demos[demos.length - 1];
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firstDemo.classList.add('first');
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lastDemo.classList.add('last');
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});
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}
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}
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</script>
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<style>
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.demo-pagination .source.first {
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padding: 0;
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display: flex;
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}
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.demo-pagination .first .block {
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display: inline-block;
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padding: 30px 0;
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text-align: center;
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border-right: solid 1px #EFF2F6;
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flex: 1;
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&:last-child {
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border-right: none;
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}
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}
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.demo-pagination .first .demonstration {
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display: block;
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color: #8492a6;
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font-size: 14px;
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margin-bottom: 20px;
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}
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.demo-pagination .source.last {
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padding: 0;
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}
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.demo-pagination .last .block {
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padding: 30px 24px;
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border-bottom: solid 1px #EFF2F6;
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&:last-child {
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border-bottom: none;
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}
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}
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.demo-pagination .last .demonstration {
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font-size: 14px;
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color: #8492a6;
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line-height: 44px;
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}
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.demo-pagination .last .demonstration + .el-pagination {
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float: right;
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width: 70%;
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margin: 5px 20px 0 0;
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}
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</style>
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### Attributes
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| 参数 | 说明 | 类型 | 可选值 | 默认值 |
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|--------------------|----------------------------------------------------------|-------------------|-------------|--------|
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| small | 是否使用小型分页样式 | Boolean | — | false |
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| page-size | 每页显示条目个数 | Number | — | 10 |
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| total | 总条目数 | Number | — | 0 |
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| current-page | 当前页数 | Number | — | 0|
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| layout | 组件布局,子组件名用逗号分隔。| String | `sizes`, `prev`, `pager`, `next`, `jumper`, `->`, `total` | 'prev, pager, next, jumper, ->, total' |
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| page-sizes | 每页显示个数选择器的选项设置 | Number[] | — | [10, 20, 30, 40, 50, 100] |
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### Events
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| 事件名称 | 说明 | 回调参数 |
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|---------|--------|---------|
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| sizechange | pageSize 改变时会触发 | 每页条数`size` |
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| currentchange | currentPage 改变时会触发 | 当前页`currentPage` |
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