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9-2 Three Restaurants: Create three instances of the class you wrote to complete Exercise 9-1, and call the method describe_restaurant () on each instance.「或许能力不好，或许财力不够，但我从来没有怀疑过诚品的理念。。。。。。」—吴清友。吴清友广为人知的是在三十九岁时创立诚品，提供阅读与生活的美好体验；但鲜为人知的，是他年少叛逆与充满挫折的求学过程、浪漫与精明背后的心路历程。若他心中无愧，自然对此无反应。Oxygen-free copperI hope I can help you ~State machines also have a wide range of uses in game development, especially the logic writing of game AI. The main characters in the game have various states such as walking, attacking, defending, falling and jumping. These states are both interrelated and constrained. For example, if attacked during walking, it will switch from walking state to falling state. In the state of falling, it can neither attack nor defend. Similarly, you cannot switch to the defensive state during the jump, but you can attack. This kind of scenario is very suitable to be described by state machine. The code is as follows:张老太太将她拉起来，揽在怀里，心疼地说道：你就装没事人。