利用js制作html table分页示例(js实现分页)

<script type="text/javascript">
            var pageSize = 15;    //每页显示的记录条数
             var curPage=0;        //当前页
             var lastPage;        //最后页
             var direct=0;        //方向
            var len;            //总行数
            var page;            //总页数
            var begin;
            var end;

               
            $(document).ready(function display(){  
                len =$("#mytable tr").length - 1;    // 求这个表的总行数，剔除第一行介绍
                page=len % pageSize==0 ? len/pageSize : Math.floor(len/pageSize)+1;//根据记录条数，计算页数
                // alert("page==="+page);
                curPage=1;    // 设置当前为第一页
                displayPage(1);//显示第一页

                document.getElementById("btn0").innerHTML="当前 " + curPage + "/" + page + " 页    每页 ";    // 显示当前多少页
                document.getElementById("sjzl").innerHTML="数据总量 " + len + "";        // 显示数据量
                document.getElementById("pageSize").value = pageSize;

               

                $("#btn1").click(function firstPage(){    // 首页
                    curPage=1;
                    direct = 0;
                    displayPage();
                });
                $("#btn2").click(function frontPage(){    // 上一页
                    direct=-1;
                    displayPage();
                });
                $("#btn3").click(function nextPage(){    // 下一页
                    direct=1;
                    displayPage();
                });
                $("#btn4").click(function lastPage(){    // 尾页
                    curPage=page;
                    direct = 0;
                    displayPage();
                });
                $("#btn5").click(function changePage(){    // 转页
                    curPage=document.getElementById("changePage").value * 1;
                    if (!/^[1-9]\d*$/.test(curPage)) {
                        alert("请输入正整数");
                        return ;
                    }
                    if (curPage > page) {
                        alert("超出数据页面");
                        return ;
                    }
                    direct = 0;
                    displayPage();
                });

               
                $("#pageSizeSet").click(function setPageSize(){    // 设置每页显示多少条记录
                    pageSize = document.getElementById("pageSize").value;    //每页显示的记录条数
                    if (!/^[1-9]\d*$/.test(pageSize)) {
                        alert("请输入正整数");
                        return ;
                    }
                    len =$("#mytable tr").length - 1;
                    page=len % pageSize==0 ? len/pageSize : Math.floor(len/pageSize)+1;//根据记录条数，计算页数
                    curPage=1;        //当前页
                     direct=0;        //方向
                     firstPage();
                });
            });

            function displayPage(){
                if(curPage <=1 && direct==-1){
                    direct=0;
                    alert("已经是第一页了");
                    return;
                } else if (curPage >= page && direct==1) {
                    direct=0;
                    alert("已经是最后一页了");
                    return ;
                }

                lastPage = curPage;

                // 修复当len=1时，curPage计算得0的bug
                if (len > pageSize) {
                    curPage = ((curPage + direct + len) % len);
                } else {
                    curPage = 1;
                }

               
                document.getElementById("btn0").innerHTML="当前 " + curPage + "/" + page + " 页    每页 ";        // 显示当前多少页

                begin=(curPage-1)*pageSize + 1;// 起始记录号
                end = begin + 1*pageSize - 1;    // 末尾记录号

               
                if(end > len ) end=len;
                $("#mytable tr").hide();    // 首先，设置这行为隐藏
                $("#mytable tr").each(function(i){    // 然后，通过条件判断决定本行是否恢复显示
                    if((i>=begin && i<=end) || i==0 )//显示begin<=x<=end的记录
                        $(this).show();
                });

             }
    </script>

<a id="btn0"></a>
<input id="pageSize" type="text" size="1" maxlength="2" value="getDefaultValue()"/><a> 条 </a> <a href="#" id="pageSizeSet">设置</a>&nbsp;
<a id="sjzl"></a>&nbsp;
<a  href="#" id="btn1">首页</a>
<a  href="#" id="btn2">上一页</a>
<a  href="#" id="btn3">下一页</a>
<a  href="#" id="btn4">尾页</a>&nbsp;
<a>转到&nbsp;</a>
<input id="changePage" type="text" size="1" maxlength="4"/>
<a>页&nbsp;</a>
<a  href="#" id="btn5">跳转</a>

<table id="mytable" align="center">
...剩余的table代码