用C++开发的画贝塞尔曲线的程序，鼠标左键可以随意拖曳节点，右键复原-Using C++ development draw Bezier curves procedures can drag the left mouse button node, right-recovery

操作系统中利用最佳适应算法 最坏适应算法 循环首次适应算法 首次适应算法实现动态内存的分配和回收内存-The operating system using the best-fit algorithm worst-fit algorithm loop first-fit algorithm first-fit algorithm to achieve dynamic memory allocation and recovery of memory