2023年7月19日发(作者：)

WPFCommand使⽤范围和写法##为什么要使⽤Command？主要是在MVVM中 实现业务与UI分离，所以不想在Click事件⾥写东西,换成了⼀个CommandFor example:Click ⽅式⼀个Button,如下 private void Button_Click(object sender, RoutedEventArgs e){ ("Hello World");}Command ⽅式public partial class Window3 : Window{ public Window3() { InitializeComponent(); d = new MyCommand(); } //private void Button_Click(object sender, RoutedEventArgs e) //{ // ("Hello World"); //}}public class MyCommand : ICommand{ public bool CanExecute(object parameter) { return true; } public event EventHandler CanExecuteChanged; public void Execute(object parameter) { ("Hello World"); }}##ICommand最佳使⽤⽅法 public class RelayCommand:ICommand { private Predicate