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#pragma once
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//观察者模式的观察者接口
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class CObserver
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{
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public:
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CObserver(void);
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virtual ~CObserver(void);
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virtual void Update(){};
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void SetVal1(double val){m_Val1 = val;};
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double GetVal1(){return m_Val1;};
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private:
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double m_Val1;//主题可以给观察者传递一些信息
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};
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