diff --git a/en-us/api/QuecPythonClasslib.md b/en-us/api/QuecPythonClasslib.md
index d4d798e..ae65c67 100644
--- a/en-us/api/QuecPythonClasslib.md
+++ b/en-us/api/QuecPythonClasslib.md
@@ -1247,7 +1247,7 @@ This function sets the short message center number. And it is not recommended to
 
 | Parameter | Type   | Description                                                  |
 | --------- | ------ | ------------------------------------------------------------ |
-| addr      | string | The short message center number to be set. The maximum length is 30 bytes. |
+| addr      | string | The short message center number to be set.|
 
 * Return Value
 
@@ -1353,6 +1353,10 @@ This function registers the listening callback function. This function will be t
 
 * Example
 
+The new architecture refers to example 1, and the old architecture refers to example 2
+
+example 1:
+
 ```python
 import sms
 
@@ -1364,6 +1368,33 @@ def cb(args):
 sms.setCallback(cb)
 ```
 
+example 2:
+
+```python
+import sms
+
+def cb(args):
+    ind_flag = args[0]
+	if ind_flag == 4097:
+	    mes_buf = args[1]
+		mes_len = args[2]
+		print('New message! ind_flag:{},mes_buf:{},mes_len:{}'.format(ind_flag, mes_buf, mes_len))
+    elif ind_flag == 4099:
+	    mes_type = args[1]
+		storage = args[2]
+        index = args[3]
+        print('New message! ind_flag:{},mes_type:{},storage:{},index:{}'.format(ind_flag, mes_type, storage, index))
+	elif ind_flag == 4100:
+	    mes_buf = args[1]
+        print('New message! ind_flag:{},mes_buf:{}'.format(ind_flag, mes_buf))
+	elif ind_flag == 4101:
+		storage = args[1]
+        index = args[2]
+        print('New message! ind_flag:{},storage:{},index:{}'.format(ind_flag, storage, index))
+    
+sms.setCallback(cb)
+```
+
 
 
 #### net - Network
diff --git a/zh-cn/api/QuecPythonClasslib.md b/zh-cn/api/QuecPythonClasslib.md
index ec99173..190a4a2 100644
--- a/zh-cn/api/QuecPythonClasslib.md
+++ b/zh-cn/api/QuecPythonClasslib.md
@@ -1200,7 +1200,7 @@ if __name__ == '__main__':
 
 | 参数 | 参数类型 | 参数说明                                       |
 | ---- | -------- | ---------------------------------------------- |
-| addr | string   | 需要设置的短信中心号码，最大长度不超过30字节。 |
+| addr | string   | 需要设置的短信中心号码                         |
 
 * 返回值
 
@@ -1296,6 +1296,8 @@ PDU解码
 
 * 示例
 
+示例一：
+
 ```python
 import sms
 
@@ -1307,6 +1309,33 @@ def cb(args):
 sms.setCallback(cb)
 ```
 
+示例二：
+
+```python
+import sms
+
+def cb(args):
+    ind_flag = args[0]
+	if ind_flag == 4097:
+	    mes_buf = args[1]
+		mes_len = args[2]
+		print('New message! ind_flag:{},mes_buf:{},mes_len:{}'.format(ind_flag, mes_buf, mes_len))
+    elif ind_flag == 4099:
+	    mes_type = args[1]
+		storage = args[2]
+        index = args[3]
+        print('New message! ind_flag:{},mes_type:{},storage:{},index:{}'.format(ind_flag, mes_type, storage, index))
+	elif ind_flag == 4100:
+	    mes_buf = args[1]
+        print('New message! ind_flag:{},mes_buf:{}'.format(ind_flag, mes_buf))
+	elif ind_flag == 4101:
+		storage = args[1]
+        index = args[2]
+        print('New message! ind_flag:{},storage:{},index:{}'.format(ind_flag, storage, index))
+    
+sms.setCallback(cb)
+```
+
 
 
 #### net - 网络相关功能