将纯数字导入Excel时数据格式仍保持不变的方法

办法就是利用Excel的特性

查看例子

代码

<%@ Page language="c#" AutoEventWireup="true" %>
<script runat="server">
void Page_Load(object sender, System.EventArgs e)
{
 string data1 = "000000001";
 long data2 = 123456789123456789;
 System.IO.StringWriter sw = new System.IO.StringWriter();
 sw.WriteLine("原数字1\t转换后数字1\t原数字2\t转换数字2");
 for(int i= 0;i<10;i++)
 {
 sw.WriteLine(data1 +"\t" + "=\"" + data1 + "\"\t" + data2 +"\t" + "=\"" + data2.ToString() + "\"");
 }
 sw.Close();
 Response.Buffer= true;
 Response.Charset="";
 Response.AppendHeader("Content-Disposition","attachment;filename=aa.xls");
 Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
 Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
 Response.Write(sw);
 Response.End();
 
}
</script>