diff --git a/3.x/zh_CN/docs/contract_develop/c++_contract/add_precompiled_impl.md b/3.x/zh_CN/docs/contract_develop/c++_contract/add_precompiled_impl.md
index 908161f77..f97ccd317 100644
--- a/3.x/zh_CN/docs/contract_develop/c++_contract/add_precompiled_impl.md
+++ b/3.x/zh_CN/docs/contract_develop/c++_contract/add_precompiled_impl.md
@@ -167,7 +167,7 @@ get()接口实现
         std::string retValue = "Hello World!";
 
         auto entry = table->getRow(HELLO_WORLD_KEY_FIELD_NAME);
-        if (!entry)
+        if (entry)
         {
             retValue = entry->getField(HELLO_WORLD_VALUE_FIELD);
         }