diff --git a/docs-en/quick-start/developing-the-second-example-program-running-on-hi3861.md b/docs-en/quick-start/developing-the-second-example-program-running-on-hi3861.md
index c82d96ac64189bb382d1c1b8ad05440e7692c4c8..1f8c729faeaee95d6499f6703b88a9e34ef5a54f 100755
--- a/docs-en/quick-start/developing-the-second-example-program-running-on-hi3861.md
+++ b/docs-en/quick-start/developing-the-second-example-program-running-on-hi3861.md
@@ -31,6 +31,7 @@ The source code needs to be modified when fixing bugs or compiling a new service
     ```
     #include "ohos_init.h"
     #include "ohos_types.h"
+    #include <stdio.h>
     
     void HelloWorld(void)
     {
diff --git "a/quick-start/Hi3861\345\274\200\345\217\221\346\235\277\347\254\254\344\272\214\344\270\252\347\244\272\344\276\213\347\250\213\345\272\217.md" "b/quick-start/Hi3861\345\274\200\345\217\221\346\235\277\347\254\254\344\272\214\344\270\252\347\244\272\344\276\213\347\250\213\345\272\217.md"
index 68b2b68a5ef80c3d80f92f92581eb5b22674d384..d784d2bdd32e74cb498244763319d04b8ee1e198 100755
--- "a/quick-start/Hi3861\345\274\200\345\217\221\346\235\277\347\254\254\344\272\214\344\270\252\347\244\272\344\276\213\347\250\213\345\272\217.md"
+++ "b/quick-start/Hi3861\345\274\200\345\217\221\346\235\277\347\254\254\344\272\214\344\270\252\347\244\272\344\276\213\347\250\213\345\272\217.md"
@@ -31,6 +31,7 @@ bugfix和新增业务两种情况，涉及源码修改。下面以新增业务
     ```
     #include "ohos_init.h"
     #include "ohos_types.h"
+    #include <stdio.h>
     
     void HelloWorld(void)
     {