<!DOCTYPE html>
<html>
    <head>
        <meta charset=utf-8>
    </head>
    <body>
    	<ul id="ul">
            
        </ul>
        <script type="text/javascript">
            const _createPage = (allItem, pageItem) => {
                // 补全代码
                let ul = document.getElementById('ul');
                let pageNum = Math.ceil(allItem/pageItem);
                let i = 0;
                for (let i = 0; i < pageNum; i++) {
                    let liEl = document.createElement('li');
                    liEl.innerHTML = i+1;
                    ul.appendChild(liEl)
                }
            }
        </script>
    </body>
</html>