指针链表c语言资源操作

有3种资源:Play/Record/Collect 每个资源有3种状态：Unknow/Ready/InUse 针对资源有5种操作：Init/Open/Close/Reset/Release UnKnow状态下可对应的操作：Init/Reset Ready状态下可对应的操作：Init/Open/Release/Reset InUse状态下可对应的操作：Close/Reset