!112 缺少头文件

* 更新文档导入头文件stdio.h

docs-en/quick-start/developing-the-second-example-program-running-on-hi3861.md

@@ -29,6 +29,7 @@ The source code needs to be modified when fixing bugs or compiling a new service
     Create the service entry function  **HelloWorld**  in  **hello\_world.c**  and implement service logic. Use the SYS\_RUN\(\) of the OpenHarmony  **bootstrap**  module to start services. \(**SYS\_RUN**  is defined in the  **ohos\_init.h**  file.\)
 
     ```
+	#include <stdio.h> 
     #include "ohos_init.h"
     #include "ohos_types.h"
     

quick-start/Hi3861开发板第二个示例程序.md

@@ -29,6 +29,7 @@ bugfix和新增业务两种情况，涉及源码修改。下面以新增业务
     在hello\_world.c中新建业务入口函数HelloWorld，并实现业务逻辑。并在代码最下方，使用OpenHarmony启动恢复模块接口SYS\_RUN\(\)启动业务。（SYS\_RUN定义在ohos\_init.h文件中）
 
     ```
+	#include <stdio.h> 
     #include "ohos_init.h"
     #include "ohos_types.h"