asp.net 时间循环比较 CompareTo用法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace CodeTest.test8
{
    public partial class WebForm6 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string inputTime = "2014-1-1";
            if (!string.IsNullOrEmpty(inputTime))
            {
                DateTime thisDateNextDay = Convert.ToDateTime(inputTime).AddDays(7);//每天循环7天数据等待被插入，防止一次性抓谷歌数据异常
                DateTime thisEndTime = Convert.ToDateTime("2014-5-17");//结束时间

                if (thisDateNextDay.CompareTo(thisEndTime) <= 0)
                {//限制要插入的数据
                    for (DateTime time = Convert.ToDateTime(inputTime); time < thisEndTime; )
                    {
                        if (time.CompareTo(thisDateNextDay) < 0)
                        {
                            //Response.Write(time.ToShortDateString() + "  " + time.AddDays(1).ToShortDateString() + "</br>");
                            Response.Write(time.ToShortDateString() +"</br>");
                        }
                        else
                        {
                            break;
                        }
                        time = time.AddDays(1);
                    }
                }
            }
        }
    }
}