public File generate() {
        QRCode qrCode = new QRCode();
        File file = qrCode.encode(profile);
        return file;
    }
public File generate() {
        QRCode qrCode = new QRCode();
        File file = qrCode.encode(profile);
        return file;
    }
public File generate ( ) { QRCode qrCode = new QRCode ( ) ; File file = qrCode . encode ( profile ) ; return file ; }
生成文件

@return 返回二维码文件
生成文件