关于循环的问题
我想实现这么一个效果，我的页面的连接是

index.aspx?page=这里是页码

我想实现的是，当page获得的值是 1-10之内，则在某个地方显示的是1 2 3 4 5 6 7 8 9 10
相同的，如果是11-20之间，则显示是 11 12 13...20
类推
我现在的写法是

int page;
if (page>=1 && page<=10){
string strBody = "1 2 3 4 5 6 7 8 9 10";
}
else if (page>=11 && page<=20){
string strBody = "11 12 13...20";
}
else if()...

这样下去，但是如果页码很大的时候，要不断的家else if，这样做起来就是一个蠢办法了，我想请问下，我想精简下这个，就通过一个 if实现，请问该怎么做呢？

if (page>=变量A && page<=变量B){
string strBody = "变量C";
}

具体该怎么写呢？谢谢


[解决办法]

C# code

using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Text;public partial class _Default : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {        int startnum = 1;        int endnum = 30;        int page = 30;        int offset = 10;        Response.Write(PageNav(startnum,endnum,page, offset));    }    /// <summary>    /// 分页列表    /// </summary>    /// <param name="startnum">页码起始计数</param>    /// <param name="endnum">最大页码</param>    /// <param name="page">当前页码</param>    /// <param name="offset">显示页码范围</param>    /// <returns></returns>    private string PageNav(int startnum, int endnum, int page, int offset)    {        if (page < startnum) page = startnum;        if (page > endnum) page = endnum;        // 取整        int i = page / offset;        if ((page % offset) == 0) i--;        StringBuilder sb = new StringBuilder();        if (i > 0) sb.Append(startnum.ToString() + "...");        sb.Append(loop(i * offset, (i + 1) * offset));        if (i < ((endnum / offset)-1)) sb.Append("..." + endnum.ToString());        return sb.ToString();    }    /// <summary>    /// 页码循环    /// </summary>    /// <param name="startnum">起始循环数</param>    /// <param name="offset">循环次数</param>    /// <returns></returns>    private string loop(int startnum, int offset)    {        StringBuilder sb = new StringBuilder();        for (int i = startnum+1; i <= offset; i++)        {            sb.Append(i.ToString() + " ");        }        return sb.ToString();    }}