Introduction - If you have any usage issues, please Google them yourself
VC class source code and description of the memory map, memory-mapped files and virtual memory is somewhat similar to a region of the address space through memory-mapped files can be retained, while the physical memory in this area submitted to physical memory from a memory file mapping already exists on the diskon the file, before the file must first file mapping. Use memory-mapped file processing is stored in a file on disk, you will no longer need to run the file I/O operations, so that the memory-mapped file can play a very important role in dealing with the large amount of data file.