【简答题】试修改下面生产者-消费者问题解法中的错误(重新写出完整的代码): Var mutex,full,empty : semaphore:=1,0,n;//n是缓冲区单元格总数 producer: begin repeat ... producer an item in nextp; wait(mutex); wait(full); buffer(in):=nextp; signal(mutex); u...
【单选题】A(n) ________ consists of the marketing intermediaries that transport and store goods as they move through their path from producer to final user.