using System.IO;//读filename到byte[] private byte[] ReadFile(string fileName)
{
FileStream pFileStream = null; byte[] pReadByte = new byte[0]; try
{
pFileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read); BinaryReader r = new BinaryReader(pFileStream); r.BaseStream.Seek(0, SeekOrigin.Begin); //将文件指针设置到文件开 pReadByte = r.ReadBytes((int)r.BaseStream.Length); return pReadByte;
} catch { return pReadByte; } finally { if (pFileStream != null) pFileStream.Close(); }
} //写byte[]到fileName private bool writeFile(byte[] pReadByte, string fileName) { FileStream pFileStream = null; try { pFileStream = new FileStream(fileName, FileMode.OpenOrCreate); pFileStream.Write(pReadByte, 0, pReadByte.Length); } catch { return false; } finally { if (pFileStream != null) pFileStream.Close(); } return true; } 测试 private void button6_Click(object sender, EventArgs e) { //by 闫磊 Email:Landgis@126.com,yanleigis@21cn.com 2007.11.23 byte[] b = ReadFile(@”c:\u.jpg“); if (writeFile(b, @”c:\u1.jpg“)) { MessageBox.Show(“成功“); } else { MessageBox.Show(“失败“); } }
