$whichwrong = "The following questions were not answered correctly: \n\n";
$whichwrong .= "Question Number: $questionNum || Your Answer: $userAnswers[$s][$q]\n";
echo $whichwrong;
显示： The followin
我在城市周围做了一个样本，城市有地区，有复合体和公寓。最后，我需要获得某个城市的公寓，指出相关的过滤器（地区，复杂等）。目前我这样做： public function actionIndex()
{
$cities = Cities::find()->where(['id' => Yii::$app->request->get('city_id')])->with([
'd
我很想有let构造与Scala中的Haskell类似。我尝试了几种方法，但没有一个好。下面是一些代码： object CustomLet extends App {
val data = for (i <- 1 to 1024; j <- 1 to 512) yield (i % j) * i * (i + 1) - 1
def heavyCalc() = { println