actionscript-3 - ActionScripts 3 检查当前文件和文件夹是否存在

Question

如何获取已编译的AIR可执行应用程序的当前路径并检查文件和文件夹是否存在于同一位置？

我尝试使用此代码，但它不起作用：

var File1:File = File.applicationDirectory.resolvePath('APPAR-NC.exe');
if (File1.exists) 
{
    trace("The file exists.");
} 
else 
{
    trace("The file does not exists.")
};

Answer 1

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/filesystem/File.html

// The folder where your app is installed to.
File.applicationDirectory:File

// The same result as above.
new File("app://")

// The same folder as a system path string.
File.applicationDirectory.nativePath:String

// Returns true if file/folder, represented by the File object, exists.
File.exists:Boolean

// Returns true if the path, represented by the File object, is a folder rather than a file.
File.isDirectory:Boolean

Answer 2

只是代码中的一个小改动。

        var File1:File = File.applicationDirectory.resolvePath("APPAR-NC.exe");
        if (File1.exists)
        {
            if(File1.isDirectory)
                trace("The folder exists.");
            else
                trace("The file exists.");
        }
        else
        {
            trace("The file does not exists.")
        };