update faq.md

site/src/site/sphinx/en/faq.md

@@ -61,13 +61,13 @@ You can use `-v` to view the condition express result [https://github.com/alibab
 example [math-game](quick-start.md)
 
 ```bash
-watch demo.MathGame primeFactors traceE '{params,returnObj,throwExp}' -v -n 5 -x 3 'params.length >0 && returnObj instanceof java.util.List'
+watch demo.MathGame primeFactors '{params,returnObj,throwExp}' 'params.length >0 && returnObj instanceof java.util.List' -v
 ``` 
 
 ##### How to watch or trace constructor?
 
 ```bash
-watch demo.MathGame <init> '{params,returnObj,throwExp}' -v -n 5 -x 3 '1==1'
+watch demo.MathGame <init> '{params,returnObj,throwExp}' -v
 ```
 
 
@@ -84,4 +84,11 @@ Yes. Just download the full size package and unzip it, refer to: [Download](down
 
 ##### Attach the process with pid 1 in docker/k8s failed
 
-Reference: [https://github.com/alibaba/arthas/issues/362#issuecomment-448185416](https://github.com/alibaba/arthas/issues/362#issuecomment-448185416)
+Reference: [https://github.com/alibaba/arthas/issues/362#issuecomment-448185416](https://github.com/alibaba/arthas/issues/362#issuecomment-448185416)
+
+
+##### Why is the new version of Arthas downloaded, but the old version is connected?
+
+For example, the started version of `as.sh/arthas-boot.jar` is 3.5.*, but after connecting, the printed arthas version is 3.4.*.
+
+It may be that the target process has been diagnosed with the old version of arthas before. You can execute `stop` to stop the old version of arthas, and then reuse the new version to attach.

site/src/site/sphinx/faq.md

@@ -60,13 +60,13 @@ options json-format true
 例子[math-game](quick-start.md)
 
 ```bash
-watch demo.MathGame primeFactors traceE '{params,returnObj,throwExp}' -v -n 5 -x 3 'params.length >0 && returnObj instanceof java.util.List'
+watch demo.MathGame primeFactors '{params,returnObj,throwExp}' 'params.length >0 && returnObj instanceof java.util.List' -v
 ``` 
 
 ##### 怎么watch、trace 构造函数 ？
 
 ```bash
-watch demo.MathGame <init> '{params,returnObj,throwExp}' -v -n 5 -x 3 '1==1'
+watch demo.MathGame <init> '{params,returnObj,throwExp}' -v
 ```
 
 
@@ -83,4 +83,10 @@ watch demo.MathGame <init> '{params,returnObj,throwExp}' -v -n 5 -x 3 '1==1'
 
 ##### Attach docker/k8s 里的 pid 为 1 的进程失败
 
-参考： [https://github.com/alibaba/arthas/issues/362#issuecomment-448185416](https://github.com/alibaba/arthas/issues/362#issuecomment-448185416)
+参考： [https://github.com/alibaba/arthas/issues/362#issuecomment-448185416](https://github.com/alibaba/arthas/issues/362#issuecomment-448185416)
+
+##### 为什么下载了新版本的Arthas，连接的却是旧版本？
+
+比如启动的 `as.sh/arthas-boot.jar` 版本是3.5.* 的，但是连接上之后，打印的arthas版本是 3.4.* 的。
+
+可能是之前使用旧版本的arthas诊断过目标进程。可以先执行`stop`停止掉旧版本的arthas，再重新使用新版本attach。