Merge pull request #53 from Timothy-Liuxf/dev

docs: 📝 correct English translation in xml docs

CSharp/FrameRateTask/Exceptions.cs

@@ -14,40 +14,40 @@
 
 namespace Timothy.FrameRateTask
 {
-	/// <summary>
-	/// This exception will be thrown when the user gets the return value without the task finished.
-	/// </summary>
-	public class TaskNotFinishedException : Exception
-	{
-		///
-		public override string Message => "The task has not finished!";
-	}
-
-	/// <summary>
-	/// This exception will be thrown when the time interval specified is invalid.
-	/// </summary>
-	public class IllegalTimeIntervalException : Exception
-	{
-		///
-		public override string Message => "The time interval should be positive and no more than 1000ms!";
-	}
-
-	/// <summary>
-	/// This exception will be thrown when time exceeds but time exceeding is not allowed.
-	/// </summary>
-	public class TimeExceedException : Exception
-	{
-		///
-		public override string Message => "The loop runs too slow that it cannot finish the task in the given time!";
-	}
-
-	/// <summary>
-	/// This exception will be thrown when the user trys to start a task which has started.
-	/// </summary>
-	public class TaskStartedMoreThanOnceException : Exception
-	{
-		///
-		public override string Message => "The task has started more than once!";
-	}
+    /// <summary>
+    /// The exception that is thrown when the user gets the return value while the task has not yet finished.
+    /// </summary>
+    public class TaskNotFinishedException : InvalidOperationException
+    {
+        ///
+        public override string Message => "The task has not yet finished!";
+    }
+
+    /// <summary>
+    /// The exception that is thrown when the specified time interval is invalid.
+    /// </summary>
+    public class IllegalTimeIntervalException : ArgumentOutOfRangeException
+    {
+        ///
+        public override string Message => "The time interval should be a positive number and not exceed 1000ms!";
+    }
+
+    /// <summary>
+    /// The exception that is thrown when the task times out.
+    /// </summary>
+    public class TimeExceedException : TimeoutException
+    {
+        ///
+        public override string Message => "The loop runs so slowly that it cannot complete the task in the given time!";
+    }
+
+    /// <summary>
+    /// The exception that is thrown when the user tries to start a task that has already been started.
+    /// </summary>
+    public class TaskStartedMoreThanOnceException : InvalidOperationException
+    {
+        ///
+        public override string Message => "The task has been started more than once!";
+    }
 
 }