pb9做的例子， 生成 二维 码功 能，已通过测试！(Qr code is generated)

powerbuild而9.0 开发生成 二维码(PowerBuild and 9 development and generation of two-dimensional code)

pb9.0调用dll文件生成二维码图片，可用于需使用到二维码的场景(PB9.0 calls DLL file to generate two-dimensional code picture, which can be used in scenes requiring two-dimensional code)