我有以下的測試方法 def test() = {
val aa = Future{10} map {
case x if x%2 == 0 => (x,x)
case _ => val kk = Future.failed(BadRequestException("dd")); kk
}
aa
}
如果我刪除case _那麼方法的返回類型是Future[(Int,
我有兩個期貨。我想按順序執行它們。例如: val ec: ExecutionContextExecutor = ExecutionContext.Implicits.global
val first=Future.successful(...)
val second=Future.successful(...)
第一次完成後,應執行第二次。的問題是,第二應返回Future[Object]不
導入Future類時出現錯誤Future is not a member of scala.concurrent。 ~/workspace/experiments $ scala
Welcome to Scala version 2.9.2 (OpenJDK 64-Bit Server VM, Java 1.7.0_151).
Type in expressions to have them
與Release不同,以下代碼在使用MSVC在Debug模式下構建時隨機間隔崩潰。 #include <future>
using namespace std;
int main() {
auto l = [](){};
auto f = async(launch::async, l);
for (int i = 0; i < 1000000; ++i)