As the name implies, a memory-mapped file maps a file-like construct to an address in memory.

顾名思义，一个内存映射文件将一个类似文件的结构映射到内存的地址中。

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After reading this article, you should understand NIO, from basic get and put operations to reading a memory-mapped file.

在阅读完本文之后，您应该了解了NIO从基本的get和put操作到读取内存映射文件方面的知识。

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If two applications open the same memory-mapped file, changes made by one application will be immediately visible to the other application.

如果两个应用程序打开了同一个内存映射文件，那么某个应用程序做出的改变会立即反映给另外一个应用程序。

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