package 流;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;public class 流 {    /**     * @param args     */    public static void main(String[] args) {        // TODO Auto-generated method stub        delDir("d://MyDrivers");    }    public static void copyFile(String src,String dest){        try {            InputStream inputStream=new FileInputStream(src);            OutputStream outputStream=new FileOutputStream(dest);                        File file=new File(dest);            if(!file.exists())                try {                    file.createNewFile();                } catch (IOException e1) {                    // TODO Auto-generated catch block                    e1.printStackTrace();                }                        int ch;                        try {                while((ch=inputStream.read())!=-1)                {                    outputStream.write(ch);                }            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }        public static void renameFile(String path,String oldname,String newname){                if(!oldname.equals(newname)){            File oldFile=new File(path+"/"+oldname);            File newFile=new File(path+"/"+newname);                        if(newFile.exists())            {                System.out.println("该文件已经存在");            }            else            {                oldFile.renameTo(newFile);            }        }    }        public static void delDir(String path){                File dir=new File(path);                if(dir.exists()){            File[] tmp=dir.listFiles();                        for(int i=0; i<tmp.length; i++)            {                if(tmp[i].isDirectory())                {                    delDir(path+"/"+tmp[i].getName());                }                else                {                    tmp[i].delete();                }            }        }        dir.delete();    }}