Java：二进制方式读取文件

package hustspy.encrypt; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; public class FileOperation { public static void main(String[] args) { String src = "111.txt"; String dec = "222.txt"; try { FileInputStream in = new FileInputStream(src); // File file = new File(dec); // if(!file.exists()) // file.createNewFile(); FileOutputStream out = new FileOutputStream(dec); byte buffer[] = new byte[1024]; int count,i; while((count=in.read(buffer))!=-1){ // for循环保证只写入count个byte, 否则会写入1024个byte for(i=0; i