[AIR] 读写数据

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

const TEXT:int = 2;
var valueStr:String = "hello!"
var bytes:ByteArray = new ByteArray();
bytes.writeInt(TEXT);
bytes.writeInt(16 + valueStr.length);
bytes.writeInt(100);
bytes.writeInt(150);
bytes.writeUTFBytes(valueStr);

var file:File = File.desktopDirectory.resolvePath("test.abc");
var fs:FileStream = new FileStream();
fs.open(file, flash.filesystem.FileMode.WRITE);
fs.writeBytes(bytes, 0, bytes.length);
fs.close();

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

const TEXT:int = 2;
var bytes:ByteArray = new ByteArray();

var file:File = File.desktopDirectory.resolvePath("test.abc");
var fs:FileStream = new FileStream();
fs.open(file, flash.filesystem.FileMode.READ);
fs.readBytes(bytes);
fs.close();

if (bytes.readInt() == TEXT)
{
    var length:int = bytes.readInt();
    var tx:int = bytes.readInt();
    var ty:int = bytes.readInt();
    var str:String = bytes.readUTFBytes(length - 16);
    var t:TextField = new TextField();
    t.x = tx;
    t.y = ty;
    t.text = str;
    addChild(t);
}