File类别 File实例用作一个档案或目录的抽象表示 Filefile new File(args[o]) if(fi1e.isFi1e())(/是否为档案 System.out. println(args[0]+"檔案"); System. out. print( fi1e. canRead()?"可读":"不可读"); System. out. print( file. canWrite()?"可写":"不可写"); System. out. println fi1e. length()+"位組");File类别 • File实例用作一个档案或目录的抽象表示 File file = new File(args[0]); if(file.isFile()) { //是否为档案 System.out.println(args[0] + "檔案"); System.out.print( file.canRead() ?"可读" :"不可读"); System.out.print( file.canWrite() ?"可写" :"不可写"); System.out.println( file.length() +"位組"); }