性能最糟糕的字节拷贝方法，字节拷贝,import java.

性能最糟糕的字节拷贝方法，字节拷贝,import java.

import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;public class CopyBytes {    public static void main(String[] args) throws IOException {        FileInputStream in = null;        FileOutputStream out = null;        try {            in = new FileInputStream("xanadu.txt");            out = new FileOutputStream("outagain.txt");            int c;            while ((c = in.read()) != -1) {                out.write(c);            }        } finally {            if (in != null) {                in.close();            }            if (out != null) {                out.close();            }        }    }}//该片段来自于http://byrx.net