第五章习题解答,跳过了大部分题目。
E-5.1: 流程图略。
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/ \ +---+
+--------> | > | <---- | n |
| \ / +---+
| ---
|
+---------+ +---------+
+--->| product | | counter |<--------------------+
| +---------+ +---------+ |
| | | | |
|
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