一个简单的C#分页小模块
代码语言：javascript复制using System;
namespace Page
{
class Program
{
//url连接，countdatas表数据总行数，currentpage第几页（0是第一页），everpage每页多少行,beforlaterln前后长度
public String pagestr(String url, int countdatas, int currentpage, int everpage, int beforlaterln)
{
String page = "";
int intpart = countdatas / everpage;//整数
int remainderpart = countdatas % everpage;//余数
int countpage = intpart;//取整数
currentpage = currentpage < 0 ? 0 : currentpage;
if (remainderpart == 0)
{//余数判断
currentpage = currentpage > countpage - 1 ? countpage - 1 : currentpage;
int pp = currentpage 1;
String strbe = "";
int pagebefore = pp - beforlaterln - 1;
for (int i = pp; i > pagebefore; i--)
{
if (i > 0 && i < pp)
{
strbe = "<a class='num' href='" url "&p=" (i - 1) "'>" i "</a>" strbe;
}
}
if (pp <= 1) { strbe = ""; } else { strbe = "<a class='num' href='" url "&p=0'>首页</a>" "<a class='num' href='" url "&p=" (pp - 2) "'>上一页</a>" strbe; }
String strmid = "<span class='current'>" pp "</span>";
String strlater = "";
int pagelater = pp beforlaterln;
for (int i = pp; i < pagelater; i )
{
if (i < countpage)
{
strlater = "<a class='num' href='" url "&p=" (i) "'>" (i 1) "</a>";
}
}
if (pp >= countpage) { } else { strlater = "<a class='num' href='" url "&p=" pp "'>下一页</a>" "<a class='num' href='" url "&p=" (countpage - 1) "'>尾页</a>"; }
page = strbe strmid strlater;
}
else
{
countpage = 1;//总页数
currentpage = currentpage > countpage - 1 ? countpage - 1 : currentpage;
int pp = currentpage 1;
String strbe = "";
int pagebefore = pp - beforlaterln - 1;
for (int i = pp; i > pagebefore; i--)
{
if (i > 0 && i < pp)
{
strbe = "<a class='num' href='" url "&p=" (i - 1) "'>" i "</a>" strbe;
}
}
if (pp <= 1) { strbe = ""; } else { strbe = "<a class='num' href='" url "&p=0'>首页</a>" "<a class='num' href='" url "&p=" (pp - 2) "'>上一页</a>" strbe; }
String strmid = "<span class='current'>" pp "</span>";
String strlater = "";
int pagelater = pp beforlaterln;
for (int i = pp; i < pagelater; i )
{
if (i < countpage)
{
strlater = "<a class='num' href='" url "&p=" (i) "'>" (i 1) "</a>";
}
}
if (pp >= countpage) { } else { strlater = "<a class='num' href='" url "&p=" pp "'>下一页</a>" "<a class='num' href='" url "&p=" (countpage - 1) "'>尾页</a>"; }
page = strbe strmid strlater;
}
return "共" countpage "页" page;
}
static void Main(string[] args)
{
Program pg = new Program();
String str = pg.pagestr("http://www.abc.com?", 195, 11, 10, 8);
Console.WriteLine(str);
}
}
}运行后得到一下字符串
代码语言：javascript复制共20页<a class='num' href='http://www.abc.com?&p=0'>首页</a>
<a class='num' href='http://www.abc.com?&p=10'>上一页</a>
<a class='num' href='http://www.abc.com?&p=3'>4</a>
<a class='num' href='http://www.abc.com?&p=4'>5</a>
<a class='num' href='http://www.abc.com?&p=5'>6</a>
<a class='num' href='http://www.abc.com?&p=6'>7</a>
<a class='num' href='http://www.abc.com?&p=7'>8</a>
<a class='num' href='http://www.abc.com?&p=8'>9</a>
<a class='num' href='http://www.abc.com?&p=9'>10</a>
<a class='num' href='http://www.abc.com?&p=10'>11</a>
<span class='current'>12</span>
<a class='num' href='http://www.abc.com?&p=12'>13</a>
<a class='num' href='http://www.abc.com?&p=13'>14</a>
<a class='num' href='http://www.abc.com?&p=14'>15</a>
<a class='num' href='http://www.abc.com?&p=15'>16</a>
<a class='num' href='http://www.abc.com?&p=16'>17</a>
<a class='num' href='http://www.abc.com?&p=17'>18</a>
<a class='num' href='http://www.abc.com?&p=18'>19</a>
<a class='num' href='http://www.abc.com?&p=19'>20</a>
<a class='num' href='http://www.abc.com?&p=12'>下一页</a>
<a class='num' href='http://www.abc.com?&p=19'>尾页</a>希望对大家有帮助，谢谢！
