出怪endTime可以为0

ActionTowerDefense/Assets/Scripts/EnemyCreater.cs

@@ -139,6 +139,10 @@ public class EnemyCreater : MonoBehaviour
                 return;
             }
             float TimeInterval = (float)(spawnTime.endTime - spawnTime.startTime) / (spawnTime.num - 1);
+            if (TimeInterval <= 0)
+            {
+                return;
+            }
             await Task.Delay((int)(TimeInterval * 1000));
         }
     }