文件时间伪造

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using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.IO; using System.Linq; using System.Text; using System.Windows.Forms;   namespace FileTime {     public partial class Form1 : Form     {         public Form1()         {             InitializeComponent();         }           private void Form_DragEnter(object sender, DragEventArgs e)         {             if (e.Data.GetDataPresent(DataFormats.FileDrop))    //判断拖来的是否是文件                 e.Effect = DragDropEffects.Link;                //是则将拖动源中的数据连接到控件             else e.Effect = DragDropEffects.None;         }           private void Form_DragDrop(object sender, DragEventArgs e)         {             string filesName = "";             Array file = (System.Array)e.Data.GetData(DataFormats.FileDrop);//将拖来的数据转化为数组存储               //判断是否为目录，从目录载入文件             if (file.Length == 1)             {                 string str = file.GetValue(0).ToString();                 if (!System.IO.File.Exists(str) && System.IO.Directory.Exists(str)) //拖入的不是文件，是文件夹                 {                     string[] files = System.IO.Directory.GetFiles(str);                     for (int i = 0; i < files.Length; i++)                         filesName += (files[i] + (i == files.Length - 1 ? "" : ";"));                       textBox1.Text = filesName;                 }             }               //拖入的所有文件             int len = file.Length;             for (int i = 0; i < len; i++)             {                 filesName += (file.GetValue(i).ToString() + (i == file.Length - 1 ? "" : ";"));             }               textBox1.Text = filesName;         }           private void Form_DragDrop1(object sender, DragEventArgs e)         {             string filesName1 = "";             Array file = (System.Array)e.Data.GetData(DataFormats.FileDrop);//将拖来的数据转化为数组存储               //判断是否为目录，从目录载入文件             if (file.Length == 1)             {                 string str = file.GetValue(0).ToString();                 if (!System.IO.File.Exists(str) && System.IO.Directory.Exists(str)) //拖入的不是文件，是文件夹                 {                     string[] files = System.IO.Directory.GetFiles(str);                     for (int i = 0; i < files.Length; i++)                         filesName1 += (files[i] + (i == files.Length - 1 ? "" : ";"));                       textBox2.Text = filesName1;                 }             }               //拖入的所有文件             int len = file.Length;             for (int i = 0; i < len; i++)             {                 filesName1 += (file.GetValue(i).ToString() + (i == file.Length - 1 ? "" : ";"));             }               textBox2.Text = filesName1;         }           private void button1_Click(object sender, EventArgs e)         {             FileInfo fi1 = new FileInfo(textBox1.Text);             FileInfo fi2 = new FileInfo(textBox2.Text);               fi2.CreationTime = fi1.CreationTime;             fi2.LastAccessTime = fi1.LastAccessTime;             fi2.LastWriteTime = fi1.LastWriteTime;         }       } }