public static ExportDialog getInstance() {
        if (exportDialog == null) {
            exportDialog = new ExportDialog();
        }
        return exportDialog;
    }
<pre>
ExportDialog
</pre>

@author <a href="https://github.com/rememberber">RememBerBer</a>
@since 2019/7/20.
src/main/java/com/fangxuele/tool/push/ui/dialog/ExportDialog.java