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The execution results are consistent with the previous code, but the benefits of using the state mode are obvious. It can localize the relationship between each state and its corresponding behaviors, which are scattered and encapsulated in their corresponding state classes, making it easy to read and manage the code. In addition, the switching between states is distributed within the state class, which makes it unnecessary to write too many if, else conditional branch languages to control the switching between states.In fact, employees, experiences and students describe a role, for example, a person who is a "manager" must be an "employee". In the above design, a person cannot have multiple roles at the same time, and if he is an "employee", he can no longer be a "student". This is obviously unreasonable, because many on-the-job graduate students, even employees, are students.张杨便也拿了本书，半靠在西墙边一张矮榻上观摩。Matt LeBlanc将出演CBS新喜剧#I’m Not meijubar.net Your Friend#，讲述Matt饰演的承包商在妻子重返职场后，他发现养育孩子要比想象中困难得多。Gold Gloves Level 3: When Internal Skill > 80, [Skill Damage] +30%.