说明：  高级C语言和C++语言demo 1.高级C部分包括二级指针、数组指针、链表，都是企业级使用方法 2.C++部分将C++语法做成demo和配套教学文档，帮助迅速入门C++ 3.里面还包含stl-demo、动态库回调函数demo、智能指针等进阶C++的demo
(Senior C and C++ language demo 1. Senior C section includes two pointers, arrays, pointers, linked lists, are enterprise-level use 2.C++ part of the C++ syntax made demo and documentation supporting teaching, C++ Getting help quickly 3. which also includes stl-demo, dynamic library callback demo, and other advanced smart pointers in C++ demo)