TangXW的博客

byte[] input = {1,2,3,127,5,6,7}; // byte的范围为-128~127 InputStream in = new ByteArrayInputStream(input); for(int i = 0; i < input.length; i++){ // 1，2，3，127，5，6，7

public class Test1 { public static void main(String[] args)throws Exception{ InputStream is = new FileInputStream("d:/test.txt"); OutputStream os = new FileOutputStream(new File("d: