简单的C# 图形打印实例_打印图片的源代码，文档不包含任何页，将图像载入到窗体中，程序尝试将图像打印出来，事前请先准备好打印机-Simple C# example _ print graphics printing pictures source code, documentation does not contain any page, the image is loaded into the form, the program tries to print out images, pleas