Windows Phone 7 开发之Microsoft.Phone.Tasks中的各项Task

//PhoneCallTask ：打电话        private void btnPhoneCall_Click(object sender, RoutedEventArgs e)        {            PhoneCallTask task = new PhoneCallTask();            task.PhoneNumber = "110";            task.DisplayName = "亚";            task.Show();        } //SmsComposeTask:发送短信　        private void btnComposeSms_Click(object sender, RoutedEventArgs e)        {            SmsComposeTask task = new SmsComposeTask();            task.To = "110";            task.Body = "你好！.";            task.Show();        } //EmailComposeTask：发送邮件             EmailComposeTask task = new EmailComposeTask();            task.To = "[e-mail]";            task.Cc = "[e-mail]";            task.Subject = "测试";            task.Body = "Hello world！";            task.Show();   //WebBrowserTask：开启Web浏览器       private void btnLaunchWebBrowser_Click(object sender, RoutedEventArgs e)        {            WebBrowserTask task = new WebBrowserTask();            task.URL = "http://blog.csdn.net/fengyarongaa";            task.Show();        } //SearchTask：搜索功能        private void btnLaunchSearch_Click(object sender, RoutedEventArgs e)        {            SearchTask task = new SearchTask();            task.SearchQuery = "亚";            task.Show();        } //MediaPlayerLauncher：启动媒体播放器   MediaPlayerLauncher task = new MediaPlayerLauncher();   task.Media = new Uri(@"http://ecn.channel9.msdn.com/o9/learn/videos/Silverlight4-SL4BusinessModule1-SL4LOB_01_01_Introduction/Silverlight4-SL4BusinessModule1-SL4LOB_01_01_Introduction_kit.wmv");   task.Show();