wpf ICommand 的用法(一)

1.首先实现接口：

public class MyCommand : ICommand
    {
        public bool CanExecute(object parameter)
        {
            return true;
        }

        public event EventHandler CanExecuteChanged;

        public void Execute(object parameter)
        {
            MessageBox.Show("Hello World");
        }
    }public class MyCommand : ICo