<el-table :data="tableData.slice((currentPage-1)*pagesize,currentPage*pagesize)" border style="width: 100%"></el-table>

data数据

 tableData: [],
 total: 100, //总条数
pagesize: 3, //每页的数据条数
currentPage: 1 //默认开始页面

分页组件

<el-pagination    
          @current-change="gai"
              :current-page="currentPage"
              :page-sizes="[5, 10, 20, 40]" 
              :page-size="pagesize"    
              layout="total, prev, pager, next, jumper"
              :total="tableData.length">  
    </el-pagination>

js部分

 //分页
    gai(currentPage) {
      this.currentPage = currentPage;
    },
    // 页数
    handleSizeChange: function (size) {
        this.pagesize = size;
    },