diff --git a/zh-cn/application-dev/reference/apis/js-apis-system-parameter.md b/zh-cn/application-dev/reference/apis/js-apis-system-parameter.md
index 813277d8d46ad7f24e20b6e87a5abf3eda0c41ce..f6b9c5573d65e91d54823b2beaec10a224320c3f 100755
--- a/zh-cn/application-dev/reference/apis/js-apis-system-parameter.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-system-parameter.md
@@ -14,7 +14,8 @@
 ## 导入模块
 
 ```ts
-import systemparameter from '@ohos.systemparameter'
+import systemparameter from '@ohos.systemparameter';
+import { BusinessError } from '@ohos.base';
 ```
 
 ## systemparameter.getSync<sup>(deprecated)</sup>
@@ -68,7 +69,7 @@ get(key: string, callback: AsyncCallback&lt;string&gt;): void
 
 ```ts
 try {
-    systemparameter.get("const.ohos.apiversion", function (err, data) {
+    systemparameter.get("const.ohos.apiversion", (err:BusinessError, data:String) => {
     if (err == undefined) {
         console.log("get test.parameter.key value success:" + data)
     } else {
@@ -99,7 +100,7 @@ get(key: string, def: string, callback: AsyncCallback&lt;string&gt;): void
 
 ```ts
 try {
-    systemparameter.get("const.ohos.apiversion", "default", function (err, data) {
+    systemparameter.get("const.ohos.apiversion", "default", (err:BusinessError, data:String) => {
         if (err == undefined) {
             console.log("get test.parameter.key value success:" + data)
         } else {
@@ -136,8 +137,8 @@ get(key: string, def?: string): Promise&lt;string&gt;
 
 ```ts
 try {
-    var p = systemparameter.get("const.ohos.apiversion");
-    p.then(function (value) {
+    let p = systemparameter.get("const.ohos.apiversion");
+    p.then((value:String) => {
         console.log("get test.parameter.key success: " + value);
     }).catch(function (err) {
         console.log("get test.parameter.key error: " + err.code);
@@ -201,7 +202,7 @@ set(key: string, value: string, callback: AsyncCallback&lt;void&gt;): void
 
 ```ts
 try {
-    systemparameter.set("test.parameter.key", "testValue", function (err, data) {
+    systemparameter.set("test.parameter.key", "testValue",  (err:BusinessError, data:String) =>{
     if (err == undefined) {
         console.log("set test.parameter.key value success :" + data)
     } else {
@@ -241,8 +242,8 @@ set(key: string, value: string): Promise&lt;void&gt;
 
 ```ts
 try {
-    var p = systemparameter.set("test.parameter.key", "testValue");
-    p.then(function (value) {
+    let p = systemparameter.set("test.parameter.key", "testValue");
+    p.then((value:String) => {
         console.log("set test.parameter.key success: " + value);
     }).catch(function (err) {
         console.log(" set test.parameter.key error: " + err.code);
diff --git a/zh-cn/application-dev/reference/apis/js-apis-system-parameterEnhance.md b/zh-cn/application-dev/reference/apis/js-apis-system-parameterEnhance.md
index deb3aa478fd82c340b70cc088dda988e38ef1075..90179035677d83299ff23f79916a5f05e1bf265b 100755
--- a/zh-cn/application-dev/reference/apis/js-apis-system-parameterEnhance.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-system-parameterEnhance.md
@@ -13,7 +13,8 @@
 ## 导入模块
 
 ```ts
-import systemparameter from '@ohos.systemParameterEnhance'
+import systemparameter from '@ohos.systemParameterEnhance';
+import { BusinessError } from '@ohos.base';
 ```
 
 ## systemparameter.getSync
@@ -67,7 +68,11 @@ get(key: string, callback: AsyncCallback&lt;string&gt;): void
 
 ```ts
 try {
+<<<<<<< HEAD
+    systemparameter.get("const.ohos.apiversion", (err : BusinessError, data : String) => {
+=======
     systemparameter.get("const.ohos.apiversion", function (err, data) {
+>>>>>>> parent of 6e2bed2e97 (Update)
     if (err == undefined) {
         console.log("get test.parameter.key value success:" + data)
     } else {
@@ -98,7 +103,11 @@ get(key: string, def: string, callback: AsyncCallback&lt;string&gt;): void
 
 ```ts
 try {
+<<<<<<< HEAD
+    systemparameter.get("const.ohos.apiversion", "default", (err:BusinessError, data:String) => {
+=======
     systemparameter.get("const.ohos.apiversion", "default", function (err, data) {
+>>>>>>> parent of 6e2bed2e97 (Update)
         if (err == undefined) {
             console.log("get test.parameter.key value success:" + data)
         } else {
@@ -135,8 +144,13 @@ get(key: string, def?: string): Promise&lt;string&gt;
 
 ```ts
 try {
+<<<<<<< HEAD
+    let p = systemparameter.get("const.ohos.apiversion");
+    p.then((value:String) => {
+=======
     var p = systemparameter.get("const.ohos.apiversion");
     p.then(function (value) {
+>>>>>>> parent of 6e2bed2e97 (Update)
         console.log("get test.parameter.key success: " + value);
     }).catch(function (err) {
         console.log("get test.parameter.key error: " + err.code);
@@ -191,7 +205,11 @@ set(key: string, value: string, callback: AsyncCallback&lt;void&gt;): void
 
 ```ts
 try {
+<<<<<<< HEAD
+    systemparameter.set("test.parameter.key", "testValue", (err:BusinessError, data:String) => {
+=======
     systemparameter.set("test.parameter.key", "testValue", function (err, data) {
+>>>>>>> parent of 6e2bed2e97 (Update)
     if (err == undefined) {
         console.log("set test.parameter.key value success :" + data)
     } else {
@@ -227,8 +245,13 @@ set(key: string, value: string): Promise&lt;void&gt;
 
 ```ts
 try {
+<<<<<<< HEAD
+    let p = systemparameter.set("test.parameter.key", "testValue");
+    p.then((value:String) => {
+=======
     var p = systemparameter.set("test.parameter.key", "testValue");
     p.then(function (value) {
+>>>>>>> parent of 6e2bed2e97 (Update)
         console.log("set test.parameter.key success: " + value);
     }).catch(function (err) {
         console.log(" set test.parameter.key error: " + err.code);