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  • C# 委托

     回调在日常开发中,很常见,区别于非托管C/C++的非成员函数,framework提供了委托这种类型安全的机制,来完成回调.示例如下:

        public class Program
        {
            public static void Start()
            {
                new Machine().Run();
            }
        }
    
        public class Machine
        {
            public delegate void WarnHandler(object obj, MachineWarnEventArgs args);
    
            public  void Run()
            {
                for (var i =0; i < 100; i++)
                {
                    if (i == 66)
                    {
                        new WarnHandler(Machine_Warn).Invoke(this, new MachineWarnEventArgs($"温度达到了{i}度"));
                    }
                }
            }
    
            public static void Machine_Warn(object obj, MachineWarnEventArgs args)
            {
                Console.WriteLine($"警报,{args._param}");
            }
    
            public class MachineWarnEventArgs : EventArgs
            {
                public string _param;
    
                public MachineWarnEventArgs(string param)
                {
                    _param = param;
                }
            }
        }
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  • 原文地址:https://www.cnblogs.com/GreenLeaves/p/14850931.html
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