项目中常见的分页显示，第二页从1开始编号，然后在切换分页的过程中，偶现不对，都是小问题，整理记录一下，供参考。
template：
... <el-table-column type="index" label="编号" :index="getIndex"> </el-table-column> ... <Pagination :total="total" :pageSize="pageSize" :currentPage="currentPage" @sizeChange="sizeChange" @currentChange="currentChange"> </Pagination>
script：
getIndex (index) { if (this.currentPage==0){ return (this.currentPage) * this.pageSize + index + 1 } else{ return (this.currentPage-1) * this.pageSize + index + 1 } },
由于后端第一页是从0开始的，而前端是从第一页开始，所以需要在当前页减1。关于分页，本页条数
sizeChange(val){ let that = this; that.currentPage = 1; that.pageSize = val; that.getPageInfo(that.currentPage, val); },
跳转页面
currentChange(val){ let that = this; that.currentPage = val; that.getPageInfo(val, that.pageSize); },
页面加载数据
getUserList(currentPage, pageSize){ let that = this; that.$axios({ method: 'get', url: '***', params: { currentPage: (currentPage || that.currentPage || 1)-1, pageSize: pageSize || that.pageSize || 10 }, needInterceptors: true, showError: true, loader: true }).then(function(result){ let data = result && result.data || []; let page = result && result.pageCont || {}; that.total = page.totalItems || 0; that.tableData = data; }) },
试了几次，这样写应该是没有问题的，也解决了后端传0开始的问题。