н
async Task<int> DoSampleText() {
var chetyre = 4;
await Task.Delay(1000);
var pyat = await DownloadChislo("yandex.ru");
return chetyre + pyat;
}
как Task<int> DoSampleText() {
var chetyre = 4;
return Task.Delay(1000).FlatMap(_ =>
DownloadChislo("yandex.ru").Map(pyat =>
chetyre + pyat
)
)
}




