diff --git a/ActionFailureException.java b/ActionFailureException.java
new file mode 100644
index 0000000..bae67eb
--- /dev/null
+++ b/ActionFailureException.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**支持小米便签运行过程中的运行异常处理 */
+package net.micode.notes.gtask.exception;
+
+public class ActionFailureException extends RuntimeException {
+    private static final long serialVersionUID = 4425249765923293627L;
+/**serialVersionUID相当于java类的身份证，主要用于版本控制
+ * serialVersionUID作用是序列化时保持版本的兼容性，即在版本升级时反序列化仍保持对象的唯一性
+ */
+    public ActionFailureException() {
+        super();
+    }
+/**
+ * 在JAVA类中使用super来引用父类的成分，用this来引用当前对象
+ * 如果一个类从另一个类继承，我们new这个子类的实例对象的时候，这个子类对象里面会有一个父类对象，使用super引用父类对象
+ * 此处super（）及super（paramString）可认为是Exception（）和Exception（paramString）
+ */
+    public ActionFailureException(String paramString) {
+        super(paramString);
+    }
+
+    public ActionFailureException(String paramString, Throwable paramThrowable) {
+        super(paramString, paramThrowable);
+    }
+}