WillemJiang commented on a change in pull request #77: add saga quick start
URL: https://github.com/apache/servicecomb-docs/pull/77#discussion_r243743677
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File path: saga-reference/zh_CN/quickstart.md
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@@ -0,0 +1,69 @@
+# Apache ServiceComb Pack
+Apache ServiceComb Pack QuickStart
+saga-servicecomb-demo中的Saga代码解读
+
+## 全局事务执行过程
+
+在SagaStartAnnotationProcessor
+Annotation被触发
+1 当Request发送请求
+2 调用preIntercept 发送 SagaStartedEvent 开始事务
+3 调用postIntercept 发送 SagaEndedEvent 事务结束执行
+
+compensableAnnotationProcessor执行补偿
+路径：servicecomb/saga/omega/transaction/
+
+### EnableOmega
+
+ ```
+ //BookingApplication Class
+ @EnableOmega
+ public class BookingApplication {
+ ```
+* 当EnableOmega签注生效时TransactionAspectConfig同时被实例化
+* TransactionAspectConfig中的sagaStartAspect方法，返回初始化的SagaStartAspect对象。
+*
SagaStartAspect在构造函数中初始化SagaStartAnnotationProcessor（参数：OmegaContext及SagaMessagerSende）
参考下面的代码：
+
+ ```
+//SagaStartAspect Class
+@Around("execution(@org.apache.servicecomb.saga.omega.context.annotations.SagaStart
* *(..)) && @annotation(sagaStart)")
Review comment:
这段代码是怎么被执行的？
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