这是一个打印的类，可以方便的调用执行打印，压缩包内含有DEMO程序-This is a print class, you can easily call the implementation of print, compression package contains the DEMO program

QRCode font package can print QRCode barcode as a font, Win32 DLL encoder and .NET class library encoder are provided, the encoders are different for the trial version package and the full version package, the trial version encoders append "MW6 Demo"

对打印机操作的一个类，对Windows系统函数进行了调用，对"winspool"中的函数进行了封装。-A class for printer operation, carried out on a Windows system function call for " winspool" The function of the package.