[GitHub] [flink] zhuxiaoshang commented on a change in pull request #13225: [FLINK-18974][docs-zh]Translate the 'User-Defined Functions' page of "Application Development's DataStream API" into Chinese

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zhuxiaoshang commented on a change in pull request #13225:
URL: https://github.com/apache/flink/pull/13225#discussion_r477020865



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File path: docs/dev/user_defined_functions.zh.md
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@@ -147,95 +142,75 @@ data.map (new RichMapFunction[String, Int] {
 
 </div>
 
-Rich functions provide, in addition to the user-defined function (map,
-reduce, etc), four methods: `open`, `close`, `getRuntimeContext`, and
-`setRuntimeContext`. These are useful for parameterizing the function
-(see [Passing Parameters to Functions]({{ site.baseurl }}/dev/batch/index.html#passing-parameters-to-functions)),
-creating and finalizing local state, accessing broadcast variables (see
-[Broadcast Variables]({{ site.baseurl }}/dev/batch/index.html#broadcast-variables)), and for accessing runtime
-information such as accumulators and counters (see
-[Accumulators and Counters](#accumulators--counters)), and information
-on iterations (see [Iterations]({{ site.baseurl }}/dev/batch/iterations.html)).
+除了用户自定义的功能（map，reduce 等），富函数还提供了四个方法：`open`、`close`、`getRuntimeContext` 和
+`setRuntimeContext`。这些对于参数化功能很有用
+(参阅 [给函数传递参数]({{ site.baseurl }}/zh/dev/batch/index.html#passing-parameters-to-functions))，
+创建和最终确定本地状态，访问广播变量(参阅
+[广播变量]({{ site.baseurl }}/zh/dev/batch/index.html#broadcast-variables))，以及访问运行时信息，例如累加器和计数器(参阅

Review comment:
       These link-tags can be linked to correct pages,so i think it's unnecessary to change.




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