该资料是初学者学习指针用的，内容很多，其中包含指针中应注意的事项，希望大家能从中摆脱你对指针的阴影，学好指针这一知识点。-The information is used by beginners to learn pointer, which many, including the pointer in the matters they should pay attention in the hope that we can shake off the shadow of your pointe