public static void main(String[] args) throws IOException {
File file = getFile(); //获取文件
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file.getName()));
int b;
while((b = bis.read()) != -1) {
bos.write(b);
}
bis.close();
bos.close();
}
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