javaFX - FileChooser

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        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);        }