浅谈GC ——.NET垃圾回收机制的简单探讨-On the GC--. NET garbage collection mechanism of the simple

draw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h) { Draw *draw = (Draw *)calloc(1, sizeof(Draw)) draw->dpy = dpy draw->screen = screen draw->win = win draw->w = w draw->h = h d