diff --git a/__crypto/simple_contract/src/cmd_genkey.rs b/__crypto/simple_contract/src/cmd_genkey.rs
index f762957..aedc7f5 100644
--- a/__crypto/simple_contract/src/cmd_genkey.rs
+++ b/__crypto/simple_contract/src/cmd_genkey.rs
@@ -23,6 +23,7 @@ impl Command for CommandImpl {
         }
         let (pri_key, pub_key) = make_key_pair();
         let json_key_pair = JsonKeyPair::from(pri_key, pub_key, tag.map(|t| t.into()));
+        success!("Write gen key file: {}", output);
         fs::write(output, json_key_pair.to_json()?.as_bytes())?;
         Ok(())
     }
diff --git a/__crypto/simple_contract/src/engine_plugin_credit.rs b/__crypto/simple_contract/src/engine_plugin_credit.rs
index ca9d40c..76ab22a 100644
--- a/__crypto/simple_contract/src/engine_plugin_credit.rs
+++ b/__crypto/simple_contract/src/engine_plugin_credit.rs
@@ -64,14 +64,14 @@ impl ContractEngineCredit {
             "query" => {
                 let params: CreditContractQueryParameters = serde_json::from_str(&tx_body.parameters)?;
                 let c = load_credit_contract(&params.name)?;
-                information!("Query: {}, credit: {}", &params.account, c.query(tx, &params.account));
+                success!("Query: {}, credit: {}", &params.account, c.query(tx, &params.account));
             },
             "query_all" => {
                 let params: CreditContractQueryAllParameters = serde_json::from_str(&tx_body.parameters)?;
                 let c = load_credit_contract(&params.name)?;
                 let map = c.query_all(tx);
                 map.iter().for_each(|(k , v)| {
-                    information!("Query: {}, credit: {}", k, v);
+                    success!("Query: {}, credit: {}", k, v);
                 });
             },
             _ => return simple_error!("Unknown action: {}", action),