ByteArray 写入

import flash.filesystem.*; import flash.display.Sprite; import flash.display.TextField; import flash.utils.ByteArray; public class WriteObjectExample extends Sprite {     public function WriteObjectExample()     {         var bytes:ByteArray = new ByteArray();         var myLabel:TextField = new TextField();         myLabel.x = 150;         myLabel.y = 150;         myLabel.width = 200;         addChild(myLabel);                   var myXML:XML =              <order>                 <item id='1'>                     <menuName>burger</menuName>                     <price>3.95</price>                 </item>                 <item id='2'>                     <menuName>fries</menuName>                     <price>1.45</price>                 </item>             </order>;                   // Write XML object to ByteArray         bytes.writeObject(myXML);         bytes.position = 0;        //reset position to beginning         bytes.compress(CompressionAlgorithm.DEFLATE);    // compress ByteArray         writeBytesToFile("order.xml", bytes);         myLabel.text = "Wrote order file to desktop!";     }          private function writeBytesToFile(fileName:String, data:ByteArray):void     {         var outFile:File = File.desktopDirectory; // dest folder is desktop         outFile = outFile.resolvePath(fileName);  // name of file to write         var outStream:FileStream = new FileStream();         // open output file stream in WRITE mode         outStream.open(outFile, FileMode.WRITE);         // write out the file         outStream.writeBytes(data, 0, data.length);         // close it         outStream.close();     } }