memcpy函数测试，在linux和VC编译器下面运行，效果不一样（不能重叠copy）。linux内核memmove函数实现。-memcpy function tests, and VC compiler in linux running below, the effect is the same. linux kernel memmove function implementation.

c++语言中，list库函数的讲解程序，了解内核构造。-Library functions in c++ language, a list of the interpretation process, understand the kernel structure.