vb.net开发的写字程序,打开文件，保存文件，复制，粘贴，剪切等都已具备，同时还实现了字体样式的合并使用，文件的查找与替换等多个比较复杂的功能-vb.net development of the writing process, open file, save the file, copying, pasting, cutting, etc. have all been met, also realized the font styles used in combination with th