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

public partial class niunantest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{
string str = FileUpload1.PostedFile.ContentType;
Response.Write("ÎļþÀàÐÍ£º"+str);

string filename = "";

FileExtension[] fe = { FileExtension.GIF, FileExtension.JPG, FileExtension.PNG };
if (FileValidation.IsAllowedExtension(FileUpload1, fe))
{
string fileExt = System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
Response.Write("<br>Ñé֤ͨ¹ý£¡");
//filename = "/Images/" + DateTime.Now.ToString("yyyyMMddHHmmss") + fileExt;
//FileUpload1.PostedFile.SaveAs(Server.MapPath(filename));
}
else
{
Response.Write( "<br>ÑéÖ¤²»Í¨¹ý£¬Ö»Ö§³ÖÒÔϸñʽµÄͼƬ£ºJPG,GIF,PNG");
return;
}

}

public enum FileExtension
{
JPG = 255216,
GIF = 7173,
PNG = 13780,
SWF = 6787,
RAR = 8297,
ZIP = 8075,
_7Z = 55122

// 255216 jpg;

// 7173 gif;

// 6677 bmp,

// 13780 png;

// 6787 swf

// 7790 exe dll,

// 8297 rar

// 8075 zip

// 55122 7z

// 6063 xml


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