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package com.lut.ui;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;public class FileCopy {    public static void main(String[] args) {        File sourceDir = new File("C:/Users/DELL/Desktop/12"); // ??????        File targetDir = new File("C:/Users/DELL/Desktop/23"); // ???????                File[] files = sourceDir.listFiles(); // ??????????????                for (File file : files) {            if (file.isFile()) { // ?????                try {                    File targetType = new File(targetDir, file.getName()); // ??????                                        FileInputStream inputStream = new FileInputStream(file);                    FileOutputStream outputStream = new FileOutputStream(targetType);                                        byte[] buffer = new byte[1024];                    int readBytes;                                        while ((readBytes = inputStream.read(buffer)) != -1) {                        outputStream.write(buffer, 0, readBytes);                    }                                        outputStream.flush();                    inputStream.close();                    outputStream.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }                System.out.println("??????");    }}

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