diff --git a/others/query/src/QueryMainStandard.cpp b/others/query/src/QueryMainStandard.cpp
index 8f7387d..6868094 100644
--- a/others/query/src/QueryMainStandard.cpp
+++ b/others/query/src/QueryMainStandard.cpp
@@ -30,46 +30,64 @@ void ObtainProductParms(void)
     int sdkApiVersion = GetSdkApiVersion();
     if (sdkApiVersion != 0) {
         printf("SdkApiVersion = %d\n", sdkApiVersion);
+    } else {
+        printf("SdkApiVersion = 0\n");
     }
 
     int firstApiVersion = GetFirstApiVersion();
     if (firstApiVersion != 0) {
         printf("firstApiVersion = %d\n", firstApiVersion);
+    } else {
+        printf("firstApiVersion = 0\n");
     }
 
     const char *bootloaderVersion = GetBootloaderVersion();
     if (bootloaderVersion != nullptr) {
         printf("bootloaderVersion = %s\n", bootloaderVersion);
+    } else {
+        printf("bootloaderVersion = nullptr\n");
     }
 
     const char *incrementalVersion = GetIncrementalVersion();
     if (incrementalVersion != nullptr) {
         printf("incrementalVersion = %s\n", incrementalVersion);
+    } else {
+        printf("incrementalVersion = nullptr\n");
     }
 
     const char *buildType = GetBuildType();
     if (buildType != nullptr) {
         printf("buildType = %s\n", buildType);
+    } else {
+        printf("buildType = nullptr\n");
     }
 
     const char *buildUser = GetBuildUser();
     if (buildUser != nullptr) {
         printf("buildUser = %s\n", buildUser);
+    } else {
+        printf("buildUser = nullptr\n");
     }
 
     const char *buildHost = GetBuildHost();
     if (buildHost != nullptr) {
         printf("buildHost = %s\n", buildHost);
+    } else {
+        printf("buildHost = nullptr\n");
     }
 
     const char *buildTime = GetBuildTime();
     if (buildTime != nullptr) {
         printf("buildTime = %s\n", buildTime);
+    } else {
+        printf("buildTime = nullptr\n");
     }
 
     const char *abiList = GetAbiList();
     if (abiList != nullptr) {
         printf("AbiList = %s\n", abiList);
+    } else {
+        printf("AbiList = nullptr\n");
     }
 }
 
@@ -79,26 +97,36 @@ int main()
     const char *productType = GetDeviceType();
     if (productType != nullptr) {
         printf("Device Type = %s\n", productType);
+    } else {
+        printf("Device Type = nullptr\n");
     }
 
     const char *securityPatchTag = GetSecurityPatchTag();
     if (securityPatchTag != nullptr) {
         printf("Security Patch = %s\n", securityPatchTag);
+    } else {
+        printf("Security Patch = nullptr\n");
     }
 
     const char *osName = GetOSFullName();
     if (osName != nullptr) {
         printf("OsFullName = %s\n", osName);
+    } else {
+        printf("OsFullName = nullptr\n");
     }
 
     const char *displayVersion = GetDisplayVersion();
     if (displayVersion != nullptr) {
         printf("DisplayVersion = %s\n", displayVersion);
+    } else {
+        printf("DisplayVersion = nullptr\n");
     }
 
     const char *versionId = GetVersionId();
     if (versionId != nullptr) {
         printf("VersionID = %s\n", versionId);
+    } else {
+        printf("VersionID = nullptr\n");
     }
 
     AttestResultInfo attestResultInfo;
@@ -110,51 +138,71 @@ int main()
     int ret = GetDevUdid(udid, UDIDSIZE_LEN + 1);
     if (ret == 0) {
         printf("DevUdid = %s\n", udid);
+    } else {
+        printf("DevUdid = nullptr\n");
     }
 
     const char *manuFacture = GetManufacture();
     if (manuFacture != nullptr) {
         printf("manuFacture = %s\n", manuFacture);
+    } else {
+        printf("manuFacture = nullptr\n");
     }
 
     const char *productModel = GetProductModel();
     if (productModel != nullptr) {
         printf("productModel = %s\n", productModel);
+    } else {
+        printf("productModel = nullptr\n");
     }
 
     const char *serial = GetSerial();
     if (serial != nullptr) {
         printf("serial = %s\n", serial);
+    } else {
+        printf("serial = nullptr\n");
     }
 
     const char *brand = GetBrand();
     if (brand != nullptr) {
         printf("brand = %s\n", brand);
+    } else {
+        printf("brand = nullptr\n");
     }
 
     const char *productSeries = GetProductSeries();
     if (productSeries != nullptr) {
         printf("productSeries = %s\n", productSeries);
+    } else {
+        printf("productSeries = nullptr\n");
     }
 
     const char *softwareModel = GetSoftwareModel();
     if (softwareModel != nullptr) {
         printf("softwareModel = %s\n", softwareModel);
+    } else {
+        printf("softwareModel = nullptr\n");
     }
 
     const char *hardWareModel = GetHardwareModel();
     if (hardWareModel != nullptr) {
         printf("HardwareModel = %s\n", hardWareModel);
+    } else {
+        printf("HardwareModel = nullptr\n");
     }
 
     const char *buildRootHash = GetBuildRootHash();
     if (buildRootHash != nullptr) {
         printf("BuildRootHash = %s\n", buildRootHash);
+    } else {
+        printf("BuildRootHash = nullptr\n");
     }
 
     const char *marketName = GetMarketName();
     if (marketName != nullptr) {
         printf("marketName = %s\n", marketName);
+    } else {
+        printf("marketName = nullptr\n");
     }
 
     ObtainProductParms();