//--------------------文件，分割与合并---------------------------------------- using System.IO
/// <summary>
/// 单个文件分割函数,
/// 可将任意文件fileIn分割为若干个子文件， 单个子文件最大为 len KB
/// delet标识文件分割完成后是否删除原文件, change为加密密匙
/// fileIn = "D:\\file.rar", 子文件名形如"D:\\file.rar@_1.split"
/// </summary>
public void fileSplit(String fileIn, long KBlen, bool delet, string key)
{
//输入文件校验
if (fileIn == null || !System.IO.File.Exists(fileIn))
{
MessageBox.Show("文件" + fileIn + "不存在！");
return;
}
//从文件创建输入流
FileStream FileIn = new FileStream(fileIn, FileMode.Open);
byte[] data = new byte[KBlen < 1024 ? KBlen : 1024]; //流读取,缓存空间
long len = 0, I = 1; //记录子文件累积读取的KB大小, 分割的子文件序号
FileStream FileOut = null; //输出流
int readLen = 0; //每次实际读取的字节大小
while (readLen > 0 || (readLen = FileIn.Read(data, 0, data.Length)) > 0) //读取数据
{
//创建分割后的子文件，已有则覆盖，子文件"D:\\1.rar@_1.split"
if (len == 0)
{
FileOut = new FileStream(fileIn + "@_" + I++ + ".split", FileMode.Create);
}
len += readLen; //累计读取的文件大小
curLen += readLen; //当前处理进度
if (!key.Equals("【不加密】"))
{
Locker(ref data, key, true); // 数据加密
}
//输出，缓存数据写入子文件
FileOut.Write(data, 0, readLen);
FileOut.Flush();
//预读下一轮缓存数据
readLen = FileIn.Read(data, 0, data.Length);
if (len >= KBlen || readLen == 0) //子文件达到指定大小，或文件已读完
{
FileOut.Close(); //关闭当前输出流
len = 0;
}
//显示处理进度
if (Progress != null)
{
Progress.Value = (int)(curLen / FileLen * Progress.Maximum);
}
}
FileIn.Close(); //关闭输入流
if (delet)
{
System.IO.File.Delete(fileIn); //删除源文件
}
}
static void Main()
{
Tracer.Tracer tracer = new Tracer.Tracer();
Class1 c1 = new Class1(tracer);
Class2 c2 = new Class2(tracer);
c2.f1();
c1.f2();
c1.f1();
c2.f2();
Thread thread = new Thread(new ParameterizedThreadStart(Some));
thread.Start(tracer);
Thread.Sleep(1000);
IOutput iOutput = new ConsoleOut();
iOutput.Serializer = new TraceResultJsonSerialize();
iOutput.Write(tracer.GetTraceResult());
iOutput = new FileOut();
iOutput.Serializer = new TraceResultXMLSerialize();
iOutput.Write(tracer.GetTraceResult());
}
/// <summary>
/// 单个文件分割函数,
/// 可将任意文件fileIn分割为若干个子文件， 单个子文件最大为 len KB
/// delet标识文件分割完成后是否删除原文件, change为加密密匙
/// fileIn = "D:\\file.rar", 子文件名形如"D:\\file.rar@_1.split"
/// </summary>
public void fileSplit(String fileIn, int KBlen, bool delet, int change)
{
//输入文件校验
if (fileIn == null || !System.IO.File.Exists(fileIn))
{
MessageBox.Show("文件" + fileIn + "不存在！");
return;
}
//加密初始化
short sign = 1;
int num = 0, tmp;
if (change < 0)
{
sign = -1; change = -change;
}
//取文件名和后缀, fileIn = "D:\\1.rar"
//从文件创建输入流
FileStream FileIn = new FileStream(fileIn, FileMode.Open);
byte[] data = new byte[1024]; //流读取,缓存空间
int len = 0, I = 1; //记录子文件累积读取的KB大小, 分割的子文件序号
FileStream FileOut = null; //输出流
int readLen = 0; //每次实际读取的字节大小
while (readLen > 0 || (readLen = FileIn.Read(data, 0, data.Length)) > 0) //读取数据
{
//创建分割后的子文件，已有则覆盖，子文件"D:\\1.rar@_1.split"
if (len == 0)
{
String splitFileName = fileIn + "@_" + I++ + ".split";
outputLog("即将拆分文件" + splitFileName);
FileOut = new FileStream(splitFileName, FileMode.Create);
}
//加密逻辑,对data的首字节进行逻辑偏移加密
if (num == 0)
{
num = change;
}
tmp = data[0] + sign * (num % 3 + 3);
if (tmp > 255)
{
tmp -= 255;
}
else if (tmp < 0)
{
tmp += 255;
}
data[0] = (byte)tmp;
num /= 3;
//输出，缓存数据写入子文件
FileOut.Write(data, 0, readLen);
FileOut.Flush();
//预读下一轮缓存数据
readLen = FileIn.Read(data, 0, data.Length);
if (++len >= KBlen || readLen == 0) //子文件达到指定大小，或文件已读完
{
FileOut.Close(); //关闭当前输出流
len = 0;
}
}
FileIn.Close(); //关闭输入流
if (delet)
{
System.IO.File.Delete(fileIn); //删除源文件
}
}