javaFX - FileChooser

        FileChooser fileChooser = new FileChooser();
        fileChooser.setTitle("打开一个word文档");
        fileChooser.getExtensionFilters().addAll(new ExtensionFilter("Word Files", "*.doc", "*.docx"),
                new ExtensionFilter("All Files", "*.*"));
        fileChooser.setInitialDirectory(new File(lastPath));
        File selectedFile = fileChooser.showOpenDialog(mainApp.primaryStage);
        if (selectedFile != null) {
            loadFile(selectedFile);
        }