The pointer will have some random value that, with luck, will point into an area of memory that is not available to your program and the kernel will kill your program before it can do any damage.

• 这个指针会有一个随机值，如果运气好的话，它将会指向一个你程序不可用的内存区域，那么内核将会在它造成什么伤害前干掉你的程序。