private void SplitFileBySize(int maxSize)
{
Encoding encoding = FileOperationHelper.GetEncodingType(txbFilePath.Text);
int fileIndex = 1;
int size = (maxSize - 10) * 1024; //10K的Buffer
var inFile = new FileStream(txbFilePath.Text, FileMode.Open, FileAccess.Read);
do
{
string newFile = GetWriteFilePath(fileIndex++);
var outFile = new FileStream(newFile, FileMode.OpenOrCreate,
FileAccess.Write);
if (fileIndex != 2) //不是第一个文件，那么就要写文件头
{
FileOperationHelper.WriteFileHeader(outFile, encoding);
}
int data = 0;
var buffer = new byte[size];
if ((data = inFile.Read(buffer, 0, size)) > 0)
{
outFile.Write(buffer, 0, data);
bool hasContent = true;
do
{
int b = inFile.ReadByte();
if (b == 0xA || b == 0xD)
{
ReadToNextLine(inFile);
hasContent = false;
}
if (b != -1) //文件已经读完
{
outFile.WriteByte((byte)b);
}
else
{
hasContent = false;
}
} while (hasContent);
}
outFile.Close();
rtbLogs.AppendText(newFile + "\r\n");
} while (inFile.Position != inFile.Length);
inFile.Close();
}