private void Button_Click(object sender, RoutedEventArgs e) { string Content = (e.Source as Button).Content.ToString(); if (Content == "管理员界面") { if (adminMainWindow.IsActive == false) { adminMainWindow = new AdminMainWindow(); } adminMainWindow.WindowStartupLocation = WindowStartupLocation.Manual; adminMainWindow.Left = 0; adminMainWindow.Top = 500; adminMainWindow.Show(); } else if (Content == "用户界面") { if (userMainWindow.IsActive == false) { userMainWindow = new UserMainWindow(); } userMainWindow.WindowStartupLocation = WindowStartupLocation.Manual; userMainWindow.Left = 800; userMainWindow.Top = 500; userMainWindow.Show(); } }