diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md b/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
index e18f3df6ed6ca0f84c03ca9115f414262590576c..0ee51bdd2a23e05c3d395f58815e518fed9374e7 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
@@ -55,14 +55,14 @@ let preferences = null;
 try {
     data_preferences.getPreferences(context, 'mystore', function (err, val) {
         if (err) {
-	        console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+	        console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
 	        return;
 	    }
 	    preferences = val;
 	    console.info("Succeeded in getting preferences.");
 	})
 } catch (err) {
-    console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -78,14 +78,14 @@ class EntryAbility extends UIAbility {
         try {
             data_preferences.getPreferences(this.context, 'mystore', function (err, val) {
                 if (err) {
-                    console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+                    console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
                     return;
                 }
                 preferences = val;
                 console.info("Succeeded in getting preferences.");
             })
         } catch (err) {
-            console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
         }
     }
 }
@@ -128,10 +128,10 @@ try {
         preferences = object;
         console.info("Succeeded in getting preferences.");
     }).catch((err) => {
-        console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
     })
 } catch(err) {
-    console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -150,10 +150,10 @@ class EntryAbility extends UIAbility {
                 preferences = object;
                 console.info("Succeeded in getting preferences.");
             }).catch((err) => {
-                console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+                console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
             })
         } catch(err) {
-            console.info("Failed to get preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to get preferences. code =" + err.code + ", message =" + err.message);
         }
     }
 }
@@ -199,13 +199,13 @@ let context = featureAbility.getContext();
 try {
     data_preferences.deletePreferences(context, 'mystore', function (err) {
         if (err) {
-            console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
             return;
         }
         console.info("Succeeded in deleting preferences." );
     })
 } catch (err) {
-    console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -218,13 +218,13 @@ class EntryAbility extends UIAbility {
         try {
             data_preferences.deletePreferences(this.context, 'mystore', function (err) {
                 if (err) {
-                    console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+                    console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
                     return;
                 }
                 console.info("Succeeded in deleting preferences." );
             })
         } catch (err) {
-            console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
         }
     }
 }
@@ -277,10 +277,10 @@ try {
     promise.then(() => {
         console.info("Succeeded in deleting preferences.");
     }).catch((err) => {
-        console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
     })
 } catch(err) {
-    console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -295,10 +295,10 @@ class EntryAbility extends UIAbility {
             promise.then(() => {
                 console.info("Succeeded in deleting preferences.");
             }).catch((err) => {
-                console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+                console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
             })
         } catch(err) {
-            console.info("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to delete preferences. code =" + err.code + ", message =" + err.message);
         }
     }
 }
@@ -334,13 +334,13 @@ let context = featureAbility.getContext();
 try {
     data_preferences.removePreferencesFromCache(context, 'mystore', function (err) {
         if (err) {
-            console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
             return;
         }
         console.info("Succeeded in removing preferences.");
     })
 } catch (err) {
-    console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -353,13 +353,13 @@ class EntryAbility extends UIAbility {
         try {
             data_preferences.removePreferencesFromCache(this.context, 'mystore', function (err) {
                 if (err) {
-                    console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+                    console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
                     return;
                 }
                 console.info("Succeeded in removing preferences.");
             })
         } catch (err) {
-            console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
         }
     }
 }
@@ -403,10 +403,10 @@ try {
 	promise.then(() => {
     	console.info("Succeeded in removing preferences.");
     }).catch((err) => {
-        console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
     })
 } catch(err) {
-    console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -422,10 +422,10 @@ class EntryAbility extends UIAbility {
             promise.then(() => {
                 console.info("Succeeded in removing preferences.");
             }).catch((err) => {
-                console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+                console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
             })
         } catch(err) {
-            console.info("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to remove preferences. code =" + err.code + ", message =" + err.message);
         }
     }
 }
@@ -460,13 +460,13 @@ get(key: string, defValue: ValueType, callback: AsyncCallback<ValueType>):
 try {
     preferences.get('startup', 'default', function (err, val) {
         if (err) {
-            console.info("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
             return;
         }
         console.info("Succeeded in getting value of 'startup'. val： " + val);
     })
 } catch (err) {
-    console.info("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -500,10 +500,10 @@ try {
     promise.then((data) => {
         console.info("Succeeded in getting value of 'startup'. Data: " + data);
     }).catch((err) => {
-        console.info("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
     })
 } catch(err) {
-    console.info("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to get value of 'startup'. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -527,7 +527,7 @@ getAll(callback: AsyncCallback<Object>): void;
 try {
     preferences.getAll(function (err, value) {
         if (err) {
-            console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
             return;
         }
     let allKeys = Object.keys(value);
@@ -535,7 +535,7 @@ try {
     console.info("getAll object = " + JSON.stringify(value));
     })
 } catch (err) {
-    console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -564,10 +564,10 @@ try {
         console.info('getAll keys = ' + allKeys);
         console.info("getAll object = " + JSON.stringify(value));
     }).catch((err) => {
-        console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
     })
 } catch (err) {
-    console.info("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to get all key-values. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -593,13 +593,13 @@ put(key: string, value: ValueType, callback: AsyncCallback<void>): void
 try {
     preferences.put('startup', 'auto', function (err) {
         if (err) {
-            console.info("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
             return;
         }
         console.info("Succeeded in putting value of 'startup'.");
     })
 } catch (err) {
-    console.info("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to put value of 'startup'. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -633,10 +633,10 @@ try {
     promise.then(() => {
         console.info("Succeeded in putting value of 'startup'.");
     }).catch((err) => {
-        console.info("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
+        console.error("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
     })
 } catch(err) {
-    console.info("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
+    console.error("Failed to put value of 'startup'. code =" + err.code +", message =" + err.message);
 }
 ```
 
@@ -662,7 +662,7 @@ has(key: string, callback: AsyncCallback<boolean>): void
 try {
     preferences.has('startup', function (err, val) {
         if (err) {
-            console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
             return;
         }
         if (val) {
@@ -672,7 +672,7 @@ try {
         }
   })
 } catch (err) {
-    console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -709,10 +709,10 @@ try {
             console.info("The key 'startup' dose not contain.");
         }
     }).catch((err) => {
-        console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
   })
 } catch(err) {
-    console.info("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to check the key 'startup'. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -738,13 +738,13 @@ delete(key: string, callback: AsyncCallback<void>): void
 try {
     preferences.delete('startup', function (err) {
         if (err) {
-            console.info("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
             return;
         }
         console.info("Succeeded in deleting the key 'startup'.");
     })
 } catch (err) {
-    console.info("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to delete the key 'startup'. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -777,10 +777,10 @@ try {
 	promise.then(() => {
         console.info("Succeeded in deleting the key 'startup'.");
     }).catch((err) => {
-        console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
+        console.error("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
     })
 } catch(err) {
-    console.info("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
+    console.error("Failed to delete the key 'startup'. code =" + err.code +", message =" + err.message);
 }
 ```
 
@@ -805,13 +805,13 @@ flush(callback: AsyncCallback<void>): void
 try {
     preferences.flush(function (err) {
         if (err) {
-            console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
             return;
         }
         console.info("Succeeded in flushing.");
     })
 } catch (err) {
-    console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -838,10 +838,10 @@ try {
     promise.then(() => {
         console.info("Succeeded in flushing.");
     }).catch((err) => {
-        console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
     })
 } catch (err) {
-    console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -866,13 +866,13 @@ clear(callback: AsyncCallback<void>): void
 try {
 	preferences.clear(function (err) {
         if (err) {
-            console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
+            console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
             return;
         }
         console.info("Succeeded in clearing.");
     })
 } catch (err) {
-    console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -899,10 +899,10 @@ try {
 	promise.then(() => {
     	console.info("Succeeded in clearing.");
     }).catch((err) => {
-        console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
+        console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
     })
 } catch(err) {
-    console.info("Failed to clear. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to clear. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -928,7 +928,7 @@ on(type: 'change', callback: Callback<{ key : string }>): void
 try {
 	data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) {
 		if (err) {
-			console.info("Failed to get preferences.");
+			console.error("Failed to get preferences.");
 			return;
 		}
 		let observer = function (key) {
@@ -937,14 +937,14 @@ try {
 		preferences.on('change', observer);
 		preferences.put('startup', 'manual', function (err) {
 			if (err) {
-				console.info("Failed to put the value of 'startup'. Cause: " + err);
+				console.error("Failed to put the value of 'startup'. Cause: " + err);
 				return;
 			}
 			console.info("Succeeded in putting the value of 'startup'.");
 
 			preferences.flush(function (err) {
 				if (err) {
-					console.info("Failed to flush. Cause: " + err);
+					console.error("Failed to flush. Cause: " + err);
 					return;
 				}
 				console.info("Succeeded in flushing.");
@@ -952,7 +952,7 @@ try {
 		})
 	})
 } catch (err) {
-	console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
+	console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
 }
 ```
 
@@ -978,7 +978,7 @@ off(type: 'change', callback?: Callback<{ key : string }>): void
 try {
     data_preferences.getPreferences(this.context, 'mystore', function (err, preferences) {
         if (err) {
-            console.info("Failed to get preferences.");
+            console.error("Failed to get preferences.");
             return;
         }
         let observer = function (key) {
@@ -987,14 +987,14 @@ try {
         preferences.on('change', observer);
         preferences.put('startup', 'auto', function (err) {
             if (err) {
-                console.info("Failed to put the value of 'startup'. Cause: " + err);
+                console.error("Failed to put the value of 'startup'. Cause: " + err);
                 return;
             }
             console.info("Succeeded in putting the value of 'startup'.");
 
             preferences.flush(function (err) {
                 if (err) {
-                    console.info("Failed to flush. Cause: " + err);
+                    console.error("Failed to flush. Cause: " + err);
                     return;
                 }
                 console.info("Succeeded in flushing.");
@@ -1003,7 +1003,7 @@ try {
         })
     })
 } catch (err) {
-    console.info("Failed to flush. code =" + err.code + ", message =" + err.message);
+    console.error("Failed to flush. code =" + err.code + ", message =" + err.message);
 }
 ```