说明：  在VFP9.0中生成二维码教程，下载QRMaker1.3,并解压，将Qrmaker.ocx、Qrmaker.lic、Qrmaker.tlb、QRmaker.oca 4个文件复制到C:\windows\system32文件夹下，并在C:\windows\system32文件下运行Regsvr32 Qrmaker.ocx进行控件注册。（windows xp系统）
(Generating two dimensional code tutorials in VFP9.0 Download QRMaker1.3 and decompress, copy 4 files of Qrmaker.ocx, Qrmaker.lic, Qrmaker.tlb and QRmaker.oca to C:\windows\system32 folder, and run Regsvr32 Qrmaker.ocx under C:\windows\system32 file to register controls. (Windows XP system))