在VC++6.0编译器环境下完成红黑树的删除，基于C++源码的编程 直接新建满足条件的红黑树，然后删除选定的结点-In VC++6.0 compiler environment to complete the removal of red-black tree, based on C++ source code directly to the new programming to meet the conditions of the red-black tree, and then delete