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3. Code Encapsulation of Publish-Subscribe Mode(2) Resource consumption. Memory: A large number of idle threads will take up a lot of memory, putting pressure on the garbage collector. ; CPU: If you already have enough threads to keep all CPUs busy, creating more threads will reduce performance.The wines of Chateau La Tour Carnet are medium to heavy-bodied, with strong tannins, rich and sweet fruit aroma and jam-like taste. The quality of the wine produced every year is relatively stable, and because the manor is not well known, the price will not be too high, and it will often be worth it. In recent years, Carrie Fort has performed quite well. In some good years, it has successively achieved remarkable results in international competitions.如雪的态度骤然间发生了变化，下人们全都看在心里，心中那叫一个嫉妒啊。Deletes all rules in the specified table, and think twice when executing.The Original class is the original class, which contains the attribute value to be saved and creates a memo class to save the value value. The Memento class is a memo class, and the Storage class is a class that stores memos and holds an instance of the Memento class. This pattern is well understood. Look directly at the source code:13