关于vb:vb编写多文档文本编辑器怎样实现新建

有没有大神能教教我用vb编写多文档文本编辑器，怎么实现新建、关上多个文档啊搞个数组保留门路，每关上/新建文件就映射到内存(固定分页映射，多余舍弃，有余再新映射)，保留就覆写，敞开就勾销文件映射，而后多文档交替则能够思考列表控件、下拉控件或者自绘
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