diff --git a/README.md b/README.md
index 4b793de..b1af545 100755
--- a/README.md
+++ b/README.md
@@ -86,15 +86,16 @@ void loop() {
 #### 使用说明
 ##### 注册自定义命令
 ```C
-static void cmd_echo(int argc, char* argv[])
+static int cmd_echo(int argc, char* argv[])
 {
     if(param_check(1, argc, argv))
 	{
     	printf("%s\r\n", argv[1]);
 	}
+    return 0;
 }
 
-static void cmd_example(int argc, char* argv[])
+static int cmd_example(int argc, char* argv[])
 {
     uint8_t i;
     if(param_check(1, argc, argv))
@@ -121,6 +122,7 @@ static void cmd_example(int argc, char* argv[])
 			}
 		}
 	}
+    return 0;
 }
 
 static xcmd_t cmds[] = 
diff --git a/extensions/ex_cmds/ex_cmds.c b/extensions/ex_cmds/ex_cmds.c
index 92967cc..5c55401 100644
--- a/extensions/ex_cmds/ex_cmds.c
+++ b/extensions/ex_cmds/ex_cmds.c
@@ -1,7 +1,7 @@
 #include "ex_cmds.h"
 #include "xcmd.h"
 
-static void cmd_run(int argc, char* argv[])
+static int cmd_run(int argc, char* argv[])
 {
     if(argc >= 2)
     {
@@ -11,6 +11,7 @@ static void cmd_run(int argc, char* argv[])
     {
         xcmd_print("usage: run \"cmd\"\n");
     }
+    return 0;
 }
 
 static xcmd_t cmds[] = 
diff --git a/extensions/test/test.c b/extensions/test/test.c
index cdcf888..061940a 100644
--- a/extensions/test/test.c
+++ b/extensions/test/test.c
@@ -53,15 +53,16 @@ static uint8_t param_check(int need, int argc, char*argv[])
     return ret;
 }
 
-static void cmd_echo(int argc, char* argv[])
+static int cmd_echo(int argc, char* argv[])
 {
     if(param_check(1, argc, argv))
 	{
     	xcmd_print("%s\r\n", argv[1]);
 	}
+    return 0;
 }
 
-static void cmd_example(int argc, char* argv[])
+static int cmd_example(int argc, char* argv[])
 {
     uint8_t i;
     if(param_check(1, argc, argv))
@@ -88,9 +89,10 @@ static void cmd_example(int argc, char* argv[])
 			}
 		}
 	}
+    return 0;
 }
 
-static void cmd_history(int argc, char* argv[])
+static int cmd_history(int argc, char* argv[])
 {
     uint16_t len = xcmd_history_len();
 
@@ -111,9 +113,10 @@ static void cmd_history(int argc, char* argv[])
             break;
         }
     }
+    return 0;
 }
 
-static void cmd_delete_cmd(int argc, char* argv[])
+static int cmd_delete_cmd(int argc, char* argv[])
 {
     int res = 0;
     if (argc == 2)
@@ -124,13 +127,13 @@ static void cmd_delete_cmd(int argc, char* argv[])
             goto error;
         }
     }
-    return;
+    return 0;
 error:
     xcmd_print("Too many parameters are entered or there is no command\r\n");
-    return;
+    return -1;
 }
 
-static void cmd_delete_key(int argc, char* argv[])
+static int cmd_delete_key(int argc, char* argv[])
 {
     int res = 0;
     if (argc == 2)
@@ -141,8 +144,10 @@ static void cmd_delete_key(int argc, char* argv[])
             goto error;
         }
     }
+    return 0;
 error:
     xcmd_print("Too many parameters are entered or there is no command\r\n");
+    return -1;
 }
 
 
@@ -152,7 +157,7 @@ static int cmd_ctr_q(void* pv)
     return 0;
 }
 
-static void cmd_print_color(int argc, char* argv[])
+static int cmd_print_color(int argc, char* argv[])
 {
     xcmd_print(TX_DEF      "txt_color = DEF    \r\n"   TX_DEF);
     xcmd_print(TX_RED      "txt_color = RED    \r\n"   TX_DEF);
@@ -170,7 +175,7 @@ static void cmd_print_color(int argc, char* argv[])
     xcmd_print(BK_YELLOW    "background_color = BK_YELLOW" BK_DEF "\r\n");
     xcmd_print(BK_BLUE      "background_color = BK_BLUE"   BK_DEF "\r\n");
     xcmd_print(BK_WHITE     "background_color = BK_WHITE"  BK_DEF "\r\n");
-
+    return 0;
 }
 
 static xcmd_t cmds[] = 
diff --git a/inc/xcmd.h b/inc/xcmd.h
index 7fac58b..d283365 100755
--- a/inc/xcmd.h
+++ b/inc/xcmd.h
@@ -14,7 +14,7 @@
 extern   "C" {
 #endif
 
-typedef void(*cmd_func_t)(int argv, char* argc[]);
+typedef int(*cmd_func_t)(int argv, char* argc[]);
 typedef int(*cmd_key_func_t)(void *data);
 
 typedef struct __cmd
@@ -98,9 +98,9 @@ int xcmd_unregister_key(char *key);
 /**
  * @description: 手动执行命令
  * @param {char* } str：命令
- * @return {uint8_t}  返回参数的个数
+ * @return {uint8_t}  返回执行结果
  */
-uint8_t xcmd_exec(char *str);
+int xcmd_exec(char *str);
 
 /**
  * @description: 打印字符串
diff --git a/src/xcmd.c b/src/xcmd.c
index bde9f42..a3104a0 100755
--- a/src/xcmd.c
+++ b/src/xcmd.c
@@ -164,10 +164,11 @@ static int xcmd_get_param(char* msg, char*delim, char* get[], int max_num)
 	return ret;
 }
 
-static void xcmd_cmd_match(int argc, char*argv[])
+static int xcmd_cmd_match(int argc, char*argv[])
 {
     xcmd_t *p = g_xcmder.cmd_list.head;
     uint8_t flag = 0;
+    int ret = -1;
     while(p)
     {
         if(strcmp(p->name, argv[0]) == 0)
@@ -182,7 +183,7 @@ static void xcmd_cmd_match(int argc, char*argv[])
                     break;
                 }
             }
-            p->func(argc, argv);
+            ret = p->func(argc, argv);
             break;
         }
         p = p->next;
@@ -195,6 +196,7 @@ static void xcmd_cmd_match(int argc, char*argv[])
     {
         xcmd_print("cmd \"%s\" does not exist\r\n", argv[0]);
     }
+    return ret;
 }
 
 static void xcmd_key_match(char* key)
@@ -522,7 +524,7 @@ void xcmd_history_slider_reset(void)
 #endif
 }
 
-uint8_t xcmd_exec(char* str)
+int xcmd_exec(char* str)
 {
 	int param_num = 0;
 	char *cmd_param_buff[XCMD_PARAM_MAX_NUM];
@@ -531,9 +533,9 @@ uint8_t xcmd_exec(char* str)
 	param_num = xcmd_get_param(temp, " ", cmd_param_buff, XCMD_PARAM_MAX_NUM);
 	if(param_num >0)
 	{
-		xcmd_cmd_match(param_num, cmd_param_buff);
+		return xcmd_cmd_match(param_num, cmd_param_buff);
 	}
-	return param_num;
+	return -1;
 }
 
 int xcmd_key_register(xcmd_key_t *keys, uint16_t number)
diff --git a/src/xcmd_default_cmds.c b/src/xcmd_default_cmds.c
index cd11505..15e8fc8 100755
--- a/src/xcmd_default_cmds.c
+++ b/src/xcmd_default_cmds.c
@@ -11,12 +11,13 @@
 #include "xcmd.h"
 #include <stdlib.h>
 
-static void cmd_clear(int argc, char* argv[])
+static int cmd_clear(int argc, char* argv[])
 {
     xcmd_print("\033c");
+    return 0;
 }
 
-static void cmd_help(int argc, char* argv[])
+static int cmd_help(int argc, char* argv[])
 {
     xcmd_t *p = xcmd_cmdlist_get();
     while(p)
@@ -24,9 +25,10 @@ static void cmd_help(int argc, char* argv[])
         xcmd_print("%-20s %s\r\n",p->name, p->help);
         p = p->next;
     }
+    return 0;
 }
 
-static void cmd_keys(int argc, char* argv[])
+static int cmd_keys(int argc, char* argv[])
 {
     xcmd_key_t *p = xcmd_keylist_get();
     while(p)
@@ -35,9 +37,10 @@ static void cmd_keys(int argc, char* argv[])
         xcmd_print("%s\r\n",p->help);
         p = p->next;
     }
+    return 0;
 }
 
-static void cmd_logo(int argc, char* argv[])
+static int cmd_logo(int argc, char* argv[])
 {
     char *log = "\
  _  _  ___  __  __  ____  \r\n\
@@ -47,6 +50,7 @@ static void cmd_logo(int argc, char* argv[])
     xcmd_print("%s", log);
     xcmd_print("\r\n%-10s %s %s\r\n","Build" ,__DATE__,  __TIME__);
     xcmd_print("%-10s %s\r\n","Version", VERSION);
+    return 0;
 }
 
 static xcmd_t cmds[] =