推荐回答（2个）
select * from Book where PublicationDate>='2012-2-19' and PublicationDate<='2012-3-1'
这个语句是查询日期在2012-2-19号到2012-3-1号之间的数据，希望对你有帮助
这个是我给你的日期范围：你应该能看的明白
int weeknow = Convert.ToInt32(DateTime.Now.DayOfWeek);
string today = DateTime.Now.ToString("yyyy-MM-dd");
string befdata = DateTime.Now.AddDays(-weeknow).ToString("yyyy-MM-dd");
string befata1 = DateTime.Now.AddDays(-weeknow - 7).ToString("yyyy-MM-dd");
Response.Write("
本周的时间段：" + befdata + "~" + today);
之后的事情，你只要判断一下就好了
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