Adobe Air FileStream将jpg从一个目录复制到另一个目录

import flash.filesystem.File;
import flash.filesystem.FileStream;
import flash.utils.ByteArray;

function copyFile(sourcePath:String, destinationPath:String):void {
    var sourceFile:File = new File(sourcePath);
    var destinationFile:File = new File(destinationPath);
    
    var sourceStream:FileStream = new FileStream();
    var destinationStream:FileStream = new FileStream();
    
    try {
        sourceStream.open(sourceFile, FileMode.READ);
        destinationStream.open(destinationFile, FileMode.WRITE);
        
        var buffer:ByteArray = new ByteArray();
        sourceStream.readBytes(buffer);
        destinationStream.writeBytes(buffer);
    } catch (e:Error) {
        trace("Error copying file: " + e.message);
    } finally {
        sourceStream.close();
        destinationStream.close();
    }
}

// 使用示例
var sourcePath:String = "path/to/source.jpg";
var destinationPath:String = "path/to/destination.jpg";
copyFile(sourcePath, destinationPath);