fix hub serving doc

doc/doc_ch/serving.md

@@ -28,21 +28,37 @@ deploy/hubserving/ocr_system/
 # 安装paddlehub  
 pip3 install paddlehub --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple
 
-# 设置环境变量  
+# 在Linux下设置环境变量
 export PYTHONPATH=.
-```   
+# 在Windows下设置环境变量
+SET PYTHONPATH=.
+```
 
 ### 2. 安装服务模块
-PaddleOCR提供3种服务模块，根据需要安装所需模块。如： 
+PaddleOCR提供3种服务模块，根据需要安装所需模块。
+
+* 在Linux环境下，安装示例如下：
 
 安装检测服务模块：  
 ```hub install deploy/hubserving/ocr_det/```  
 
-或，安装识别服务模块：    
+或，安装识别服务模块：  
 ```hub install deploy/hubserving/ocr_rec/```  
 
 或，安装检测+识别串联服务模块：  
-```hub install deploy/hubserving/ocr_system/```  
+```hub install deploy/hubserving/ocr_system/```
+
+* 在Windows环境下(文件夹的分隔符为`\`)，安装示例如下：
+
+安装检测服务模块：  
+```hub install deploy\hubserving\ocr_det\```  
+
+或，安装识别服务模块：  
+```hub install deploy\hubserving\ocr_rec\```  
+
+或，安装检测+识别串联服务模块：  
+```hub install deploy\hubserving\ocr_system\```
+
 
 ### 3. 启动服务
 #### 方式1. 命令行命令启动（仅支持CPU）
@@ -71,7 +87,7 @@ $ hub serving start --modules [Module1==Version1, Module2==Version2, ...] \
 **启动命令：**  
 ```hub serving start -c config.json```  
 
-其中，`config.json`格式如下： 
+其中，`config.json`格式如下：
 ```python
 {
     "modules_info": {
@@ -124,7 +140,7 @@ hub serving start -c deploy/hubserving/ocr_system/config.json
 ## 返回结果格式说明
 返回结果为列表（list），列表中的每一项为词典（dict），词典一共可能包含3种字段，信息如下：
 
-|字段名称|数据类型|意义| 
+|字段名称|数据类型|意义|
 |-|-|-|
 |text|str|文本内容|
 |confidence|float| 文本识别置信度|
@@ -134,9 +150,9 @@ hub serving start -c deploy/hubserving/ocr_system/config.json
 
 |字段名/模块名|ocr_det|ocr_rec|ocr_system|
 |-|-|-|-|  
-|text||✔|✔| 
-|confidence||✔|✔| 
-|text_region|✔||✔| 
+|text||✔|✔|
+|confidence||✔|✔|
+|text_region|✔||✔|
 
 **说明：** 如果需要增加、删除、修改返回字段，可在相应模块的`module.py`文件中进行修改，完整流程参考下一节自定义修改服务模块。
 
@@ -157,4 +173,3 @@ hub serving start -c deploy/hubserving/ocr_system/config.json
 
 - 5、重新启动服务  
 ```hub serving start -m ocr_system```  
-

doc/doc_en/serving_en.md

@@ -29,12 +29,16 @@ The following steps take the 2-stage series service as an example. If only the d
 # Install paddlehub  
 pip3 install paddlehub --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple
 
-# Set environment variables  
+# Set environment variables on Linux
 export PYTHONPATH=.
-```   
+# Set environment variables on Windows
+SET PYTHONPATH=.
+```
 
 ### 2. Install Service Module
-PaddleOCR provides 3 kinds of service modules, install the required modules according to your needs. Such as:  
+PaddleOCR provides 3 kinds of service modules, install the required modules according to your needs.
+
+* On Linux platform, the examples are as follows.
 
 Install the detection service module:  
 ```shell
@@ -47,7 +51,22 @@ hub install deploy/hubserving/ocr_rec/
 Or, install the 2-stage series service module:  
 ```shell
 hub install deploy/hubserving/ocr_system/
+```
+
+* On Windows platform, the examples are as follows.
+
+Install the detection service module:  
+```shell
+hub install deploy\hubserving\ocr_det\
 ```  
+Or, install the recognition service module:  
+```shell
+hub install deploy\hubserving\ocr_rec\
+```  
+Or, install the 2-stage series service module:  
+```shell
+hub install deploy\hubserving\ocr_system\
+
 
 ### 3. Start service
 #### Way 1. Start with command line parameters (CPU only)
@@ -119,7 +138,7 @@ python tools/test_hubserving.py server_url image_path
 ```  
 
 Two parameters need to be passed to the script:
-- **server_url**：service address，format of which is 
+- **server_url**：service address，format of which is
 `http://[ip_address]:[port]/predict/[module_name]`  
 For example, if the detection, recognition and 2-stage serial services are started with provided configuration files, the respective `server_url` would be:  
 `http://127.0.0.1:8866/predict/ocr_det`  
@@ -135,7 +154,7 @@ python tools/test_hubserving.py http://127.0.0.1:8868/predict/ocr_system ./doc/i
 ## Returned result format
 The returned result is a list. Each item in the list is a dict. The dict may contain three fields. The information is as follows:
 
-|field name|data type|description| 
+|field name|data type|description|
 |-|-|-|
 |text|str|text content|
 |confidence|float|text recognition confidence|
@@ -145,9 +164,9 @@ The fields returned by different modules are different. For example, the results
 
 |field name/module name|ocr_det|ocr_rec|ocr_system|
 |-|-|-|-|  
-|text||✔|✔| 
-|confidence||✔|✔| 
-|text_region|✔||✔| 
+|text||✔|✔|
+|confidence||✔|✔|
+|text_region|✔||✔|
 
 **Note：** If you need to add, delete or modify the returned fields, you can modify the file `module.py` of the corresponding module. For the complete process, refer to the user-defined modification service module in the next section.