public int copyTo(String toFilePath, long every) {
int c = 0;
FileAdapter fa = new FileAdapter(toFilePath);
fa.createFile();
byte[] bts = null;
long begin = 0;
while ((bts = this.getReader(begin, every).readAll()) != null) {
c += fa.getWriter().write(bts);
begin += bts.length;
}
fa.close();
return c;
}
