private function butClickHandle(e:MouseEvent):void
{
var file:File = File.desktopDirectory;
//打開文件
if (e.target.id=="but_openfile"){
var txtfilter:FileFilter = new FileFilter("Text","*.as;*.css;*.txt;*.java;*.html;*.htm;*.xml");
file.browseForOpen("Open",[txtfilter]);
file.addEventListener(Event.SELECT,function(e:Event):void{
var file:File = new File(e.target.nativePath);
var filestream:FileStream = new FileStream;
filestream.open(file,FileMode.READ);
var bytes:ByteArray = new ByteArray;
filestream.readBytes(bytes,0,file.size);
txtfile.text = transEncodingText(bytes);
});
}
//打開文件夾
if (e.target.id=="but_opendir"){
file.browseForDirectory("打開文件夾");
file.addEventListener(Event.SELECT,function(e:Event):void{
txtfile.text = e.target.nativePath + File.lineEnding;
var contents:Array = File(e.target).getDirectoryListing();
for (var i:int=0;i<contents.length;i++){
txtfile.text += contents[i].name +"\t"+ contents[i].size + File.lineEnding;
}
});
}
}
//var bytes:ByteArray = new ByteArray;
//filestream.readBytes(bytes,0,file.size);
// 讀取不同 編碼的文檔
private function transEncodingText(bytes:ByteArray):String
{
// 1. unicode 文檔 開頭 16進制碼爲 FF FE ,對應 十進制 數 爲 255,254
if (bytes[0]==255 && bytes[1]==254){
return bytes.readMultiByte(bytes.length,"unicode");
}
// 2.unicode big endian 開頭 16進制 爲 FE FF,對應十進制數 爲 254,255
if (bytes[0]==254 && bytes[1]==255){
return bytes.readMultiByte(bytes.length,"UTF-16BE");
}
// 3.utf-8 開頭 16進制 爲 EF BB ,對應 十進制 數 爲 239,187
if (bytes[0]==239 && bytes[1]==187){
return bytes.readMultiByte(bytes.length,"utf-8");
}
// 默認採用系統編碼 讀取
return bytes.readMultiByte(bytes.length,File.systemCharset);
}