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private bool IsPicture(string filePath)//filePathÊÇÎļþµÄÍêÕû·¾¶
{
try
{
FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
BinaryReader reader = new BinaryReader(fs);
string fileClass;
byte buffer;
byte[] b=new byte[2];
buffer = reader.ReadByte();
b[0] = buffer;
fileClass = buffer.ToString();
buffer = reader.ReadByte();
b[1]=buffer;
fileClass += buffer.ToString();
reader.Close();
fs.Close();
if (fileClass == "255216 ")//255216ÊÇjpg;7173ÊÇgif;6677ÊÇ
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using System.Security.Cryptography;
using System.IO;
using System.text;
/// <summary>
/// ¼ÓÃÜ
// ......
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using System;
using System.Data;
using System.Configuration;
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.Data.OleDb;
/// <summary>
/// Data ......
protected void Page_Load(object sender, EventArgs e)
{
/*
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create table student(id int,name varchar(50))
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