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fix dataxPluginDev.md

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mingya.wmy 2018-06-07 17:17:31 +08:00
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dataxPluginDev.md
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@ -131,13 +131,13 @@ public class SomeReader extends Reader {
框架按照如下的顺序执行`Job`和`Task`的接口：
![DataXReaderWriter (2)](https://github.com/alibaba/DataX/blob/master/images/plugin_dev_guide_1.jpg)
![DataXReaderWriter (2)](https://github.com/alibaba/DataX/blob/master/images/plugin_dev_guide_1.png)
上图中，黄色表示`Job`部分的执行阶段，蓝色表示`Task`部分的执行阶段，绿色表示框架执行阶段。
相关类关系如下：
![DataX](https://github.com/alibaba/DataX/blob/master/images/plugin_dev_guide_2.jpg)
![DataX](https://github.com/alibaba/DataX/blob/master/images/plugin_dev_guide_2.png)
### 插件定义
@ -397,7 +397,7 @@ public interface Record {
`Column`除了提供数据相关的方法外，还提供一系列以`as`开头的数据类型转换转换方法。
![Columns](https://github.com/alibaba/DataX/blob/master/images/plugin_dev_guide_3.jpg)
![Columns](https://github.com/alibaba/DataX/blob/master/images/plugin_dev_guide_3.png)
DataX的内部类型在实现上会选用不同的java类型：