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
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