diff --git a/.gitignore b/.gitignore
index 55f12be..d756665 100755
--- a/.gitignore
+++ b/.gitignore
@@ -5,9 +5,17 @@
 *Listings/
 *OBJ/
 
+example/stm32/qemu
+
 #file
 xcmder
 *.map
+*.bin
+*.elf
+*.list
+*.log
 *.uvoptx
 *.uvguix*
-*fatfs.img
\ No newline at end of file
+*fatfs.img
+example/stm32/qemu/DAC_OUT_PUT1.txt
+example/stm32/qemu/DAC_OUT_PUT2.txt
\ No newline at end of file
diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 0388a4f..a0a1f34 100755
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -9,7 +9,8 @@
             "compilerPath": "/opt/gcc-arm-none-eabi-9-2020-q2-update/bin/arm-none-eabi-gcc",
             "cStandard": "gnu17",
             "cppStandard": "gnu++14",
-            "intelliSenseMode": "linux-gcc-arm"
+            "intelliSenseMode": "linux-gcc-arm",
+            "configurationProvider": "ms-vscode.makefile-tools"
         }
     ],
     "version": 4
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 140e1f9..a5deb6b 100755
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -4,6 +4,27 @@
     // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
+        {
+            "name": "debug qemu",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/example/stm32/qemu/demos/main/main.elf",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${fileDirname}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/arm-none-eabi-gdb",
+            "miDebuggerServerAddress": "localhost:3333",
+            "setupCommands": [
+                {
+                    "description": "为 gdb 启用整齐打印",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ]
+        },
         {
             "name": "(gdb) 启动",
             "type": "cppdbg",
diff --git a/.vscode/settings.json b/.vscode/settings.json
index d115d6b..e64aa1e 100755
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -17,9 +17,18 @@
   "C_Cpp_Runner.enableWarnings": true,
   "C_Cpp_Runner.warningsAsError": false,
   "files.associations": {
-    "*.json": "c",
+    "*.json": "jsonc",
     "cmath": "c",
     "complex": "c",
-    "xcmd_default_keys.h": "c"
+    "xcmd_default_keys.h": "c",
+    "xcmd.h": "c",
+    "xcmd_default_cmds.h": "c",
+    "typeinfo": "c",
+    "xcmd_define.h": "c",
+    "xcmd_default_confg.h": "c",
+    "ex_keys.h": "c",
+    "ex_cmds.h": "c",
+    "test.h": "c",
+    "ctype.h": "c"
   }
 }
\ No newline at end of file
diff --git a/README.md b/README.md
index f249e02..07dd70d 100755
--- a/README.md
+++ b/README.md
@@ -7,50 +7,34 @@
 xcmd是一款单片机命令行工具，移植十分方便，并且对flash与ram占用很小，旨在为单片机提供一个能够快速搭建且占用资源很小的命令行工具，可以大大加快单片机程序调试工作，它有一下几个优点。
 1. **移植十分简单**
 2. **资源占用约8K rom 1K ram**
-1. **支持历史记录** 
-2. **支持命令自动补全**
-3. **支持注册快捷键** 
+3. **支持历史记录** 
+4. **支持命令自动补全**
+5. **支持注册快捷键** 
+5. **支持`xcmd_cmd_register()/xcmd_key_register`方法注册命令或按键** 
+5. **支持`XCMD_EXPORT_CMD()/XCMD_EXPORT_KEY()`方法直接导出命令或按键，不需要额外运行注册函数** 
 #### 支持的平台
 1. linux
 2. arduino
 3. stm32
+4. esp32
+5. qemu-stm32
 #### 测试过的串口软件
+2. （win/linux推荐）putty
+3. （win推荐）MobaXterm
+5. （linux端推荐）cu
 1. SecureCRT：请设置成Xterm模式
-2. （推荐）putty
-3. （推荐）MobaXterm
 4. Xshell
+6. nc(支持性很差)
+7. minicom(支持性很差)
 #### 支持的扩展功能
 1. 类linux风格的快捷键：ctr+left、ctr+right、ctr+a、ctr+e、ctr+u、ctr+k、ctr+l快捷键
 2. 支持字体、背景颜色显示
 3. 支持类linux的文件操作（Fatfs文件系统）：ls、cd、rm、df、mv、mkdir、touch、read、write
 4. 支持基于socket的udp server、udp client测试程序
-5. 
 #### 移植
-- 移植十分简单，只需要在初始化的时候提供字符输入输出函数即可
-```C
-    /* 例如移植到linux平台 */
-    int cmd_get_char(uint8_t *ch)
-    {
-        *ch = getch();
-        return 1;
-    }
-
-    int cmd_put_char(uint8_t ch)
-    {
-        putchar(ch);
-        return 1;
-    }
-
-    int main(void)
-    {
-        /*调用初始化函数的时候传入字符输入输出函数*/
-        xcmd_init(cmd_get_char, cmd_put_char);
-        while(1)
-        {
-            xcmd_task();
-        }
-    }
-```
+- 移植十分简单，可在example中查看各平台移植结果
+1. 在初始化的时候提供字符输入输出函数即可
+2. 从example中拷贝一个xcmd_confg.h到自己的项目
 ```C
 /* 例如移植到Arduino平台 */
 int cmd_get_char(uint8_t *ch)
@@ -83,14 +67,19 @@ void loop() {
 }
 ```
 #### 配置
-配置文件位于src/xcmd_config.h
+配置xcmd_config.h
+
+**注意**： 如果不知道如何修改连接脚本，建议不要使能ENABLE_XCMD_EXPORT。不使能ENABLE_XCMD_EXPORT的情况下有更好的兼容性移植更加简单
 ```C
-#define XCMD_LINE_MAX_LENGTH    (32) /* 命令行支持的最大字符数 */
-#define XCMD_HISTORY_MAX_NUM    (8)  /* 支持的历史记录个数，0为不支持 */
-#define XCMD_PARAM_MAX_NUM      (4)  /* 支持输入的参数个数 */
+#define XCMD_LINE_MAX_LENGTH          (128)           /* 命令行支持的最大字符数 */
+#define XCMD_HISTORY_MAX_NUM          (16)            /* 支持的历史记录个数, 这个参数对内存的影响很大，建议arduino设置为0，0为不支持 */
+#define XCMD_PARAM_MAX_NUM            (8)             /* 支持输入的参数个数 */
+// #define XCMD_DEFAULT_PROMPT           "->"            /* 提示符 */
+// #define XCMD_DEFAULT_PROMPT_CLOLR     TX_GREEN        /* 提示符颜色 */
+// #define ENABLE_XCMD_EXPORT                            /* 需要修改lds，启用后支持XCMD_EXPORT_CMD和XCMD_EXPORT_KEY方法导出命令 */
 ```
 #### 使用说明
-##### 注册自定义命令
+##### xcmd_register()方法注册自定义命令
 ```C
 static int cmd_echo(int argc, char* argv[])
 {
@@ -101,40 +90,9 @@ static int cmd_echo(int argc, char* argv[])
     return 0;
 }
 
-static int cmd_example(int argc, char* argv[])
-{
-    uint8_t i;
-    if(param_check(1, argc, argv))
-	{
-		if(strcmp(argv[1], "str") == 0)
-		{
-			for(i=2; i<argc; i++)
-		    {
-		    	printf("%s\r\n", argv[i]);
-			}
-		}
-		if(strcmp(argv[1], "int") == 0)
-		{
-			for(i=2; i<argc; i++)
-		    {
-		    	printf("%d\r\n", atoi(argv[i]));
-			}
-		}
-		if(strcmp(argv[1], "float") == 0)
-		{
-			for(i=2; i<argc; i++)
-		    {
-		    	printf("%f\r\n", atof(argv[i]));
-			}
-		}
-	}
-    return 0;
-}
-
 static xcmd_t cmds[] = 
 {
     {"echo", cmd_echo, "print anything", NULL},
-    {"example", cmd_example, "example [-f|-i|-s] [val]", NULL},
 };
 
 void test_cmd_init(void)
@@ -142,22 +100,16 @@ void test_cmd_init(void)
     xcmd_cmd_register(cmds, sizeof(cmds)/sizeof(xcmd_t));
 }
 ```
-##### 注册自定义快捷键
+##### xcmd_key_register() 方法注册自定义快捷键
 ```C
 int cmd_ctr_a(void* pv)
 {
     printf("this is ctr+a\n");
 }
 
-int cmd_ctr_c(void* pv)
-{
-    exit(0);
-}
-
 static xcmd_key_t user_keys[] = 
 {
     {KEY_CTR_A, cmd_ctr_a, "ctr+a", NULL},
-    {KEY_CTR_C, cmd_ctr_c, "ctr+c", NULL},
 };
 
 void test_keys_init(void)
@@ -165,17 +117,25 @@ void test_keys_init(void)
     xcmd_key_register(user_keys, sizeof(user_keys)/sizeof(xcmd_key_t));
 }
 ```
+##### XCMD_EXPORT_CMD()方法注册自定义命令，需要使能宏ENABLE_XCMD_EXPORT并修改lds，见`example/stm32/qemu/demos/main.ld`
+```C
+static int cmd_echo(int argc, char* argv[])
+{
+    if(param_check(1, argc, argv))
+	{
+    	printf("%s\r\n", argv[1]);
+	}
+    return 0;
+}
+XCMD_EXPORT_CMD(echo, cmd_echo, "print anything")
+```
+##### XCMD_EXPORT_KEY() 方法注册自定义快捷键, 需要使能宏ENABLE_XCMD_EXPORT并修改lds，见`example/stm32/qemu/demos/main.ld`
+```C
+int cmd_ctr_a(void* pv)
+{
+    printf("this is ctr+a\n");
+}
+XCMD_EXPORT_KEY(KEY_CTR_A, cmd_ctr_a, "ctr+a")
+```
 #### 其他
 流程图需要使用drawio来打开，可以使用vscode drawio的插件来打开
-
-#### 计划
-##### 增加socket相关扩展
-1. tcp client/service
-2. udp 广播
-3. udp 组播
-
-##### 简化命令和历史记录相关的链表
-
-##### 增加操作系统支持
-1. linux (demo only for linux example)
-2. FreeRTOS (demo only for esp32)
\ No newline at end of file
diff --git a/example/arduino/README.md b/example/arduino/README.md
new file mode 100644
index 0000000..a71d373
--- /dev/null
+++ b/example/arduino/README.md
@@ -0,0 +1,10 @@
+注意先运行init.py初始化项目
+- 初始化项目
+```bash
+python3 init.py
+```
+
+- 清除项目
+```bash
+python3 init.py clean
+```
\ No newline at end of file
diff --git a/example/arduino/arduino.ino b/example/arduino/arduino.ino
old mode 100755
new mode 100644
index 84415ff..3fc6ac8
--- a/example/arduino/arduino.ino
+++ b/example/arduino/arduino.ino
@@ -8,7 +8,6 @@
  */
 #include <Arduino.h>
 #include "xcmd.h"
-#include "test.h"
 
 int cmd_get_char(uint8_t *ch)
 {
@@ -32,8 +31,6 @@ int cmd_put_char(uint8_t ch)
 void setup() {
     Serial.begin(115200);
     xcmd_init(cmd_get_char, cmd_put_char);
-    test_cmd_init();
-    test_keys_init();
 }
 
 void loop() {
diff --git a/example/arduino/ex_cmds.c b/example/arduino/ex_cmds.c
deleted file mode 120000
index e05b39a..0000000
--- a/example/arduino/ex_cmds.c
+++ /dev/null
@@ -1 +0,0 @@
-../../extensions/ex_cmds/ex_cmds.c
\ No newline at end of file
diff --git a/example/arduino/ex_cmds.h b/example/arduino/ex_cmds.h
deleted file mode 120000
index 483e0ac..0000000
--- a/example/arduino/ex_cmds.h
+++ /dev/null
@@ -1 +0,0 @@
-../../extensions/ex_cmds/ex_cmds.h
\ No newline at end of file
diff --git a/example/arduino/ex_keys.c b/example/arduino/ex_keys.c
deleted file mode 120000
index ff19f25..0000000
--- a/example/arduino/ex_keys.c
+++ /dev/null
@@ -1 +0,0 @@
-../../extensions/ex_keys/ex_keys.c
\ No newline at end of file
diff --git a/example/arduino/ex_keys.h b/example/arduino/ex_keys.h
deleted file mode 120000
index af567d8..0000000
--- a/example/arduino/ex_keys.h
+++ /dev/null
@@ -1 +0,0 @@
-../../extensions/ex_keys/ex_keys.h
\ No newline at end of file
diff --git a/example/arduino/init.py b/example/arduino/init.py
new file mode 100644
index 0000000..f8532b7
--- /dev/null
+++ b/example/arduino/init.py
@@ -0,0 +1,33 @@
+#! /usr/bin/python3
+from shutil import copy
+import os, sys
+#diw 需拷贝的文件夹，newdir是拷贝的地方
+def copy_dir(dir,newdir):
+    for p in os.listdir(dir):
+        print(p)
+        filepath=newdir+'/'+p
+        oldpath=dir+'/'+p
+        if os.path.isdir(oldpath):
+            print('是目录')
+            os.mkdir(filepath)
+            copy_dir(oldpath,filepath)
+        if os.path.isfile(oldpath):
+            copy(oldpath,filepath)
+
+if __name__ == "__main__":
+    if(len(sys.argv) == 2):
+        if(sys.argv[1] == "clean"):
+            remove_list = ['arduino.ino', 'README.md', 'xcmd_confg.h', 'init.py']
+            files = os.listdir("./")
+            for f in remove_list:
+                files.remove(f)
+            for f in files:
+                os.remove(f)
+        else:
+            print("Usage init project: python3 init.py")
+            print("Usage clean project: python3 init.py clean")
+
+    else:
+        copy_dir("../../src", "./")
+        copy_dir("../../inc", "./")
+
diff --git a/example/arduino/test.c b/example/arduino/test.c
deleted file mode 120000
index e56ede0..0000000
--- a/example/arduino/test.c
+++ /dev/null
@@ -1 +0,0 @@
-../../extensions/test/test.c
\ No newline at end of file
diff --git a/example/arduino/test.h b/example/arduino/test.h
deleted file mode 120000
index 43808b6..0000000
--- a/example/arduino/test.h
+++ /dev/null
@@ -1 +0,0 @@
-../../extensions/test/test.h
\ No newline at end of file
diff --git a/example/arduino/xcmd.c b/example/arduino/xcmd.c
deleted file mode 120000
index 617857c..0000000
--- a/example/arduino/xcmd.c
+++ /dev/null
@@ -1 +0,0 @@
-../../src/xcmd.c
\ No newline at end of file
diff --git a/example/arduino/xcmd.h b/example/arduino/xcmd.h
deleted file mode 120000
index 02e2e49..0000000
--- a/example/arduino/xcmd.h
+++ /dev/null
@@ -1 +0,0 @@
-../../inc/xcmd.h
\ No newline at end of file
diff --git a/example/arduino/xcmd_confg.h b/example/arduino/xcmd_confg.h
deleted file mode 120000
index 0abcc6b..0000000
--- a/example/arduino/xcmd_confg.h
+++ /dev/null
@@ -1 +0,0 @@
-../../inc/xcmd_confg.h
\ No newline at end of file
diff --git a/example/arduino/xcmd_confg.h b/example/arduino/xcmd_confg.h
new file mode 100755
index 0000000..633c34a
--- /dev/null
+++ b/example/arduino/xcmd_confg.h
@@ -0,0 +1,29 @@
+/*
+ * @Author: your name
+ * @Date: 2021-09-17 23:03:06
+ * @LastEditTime: 2021-10-11 21:40:01
+ * @LastEditors: Please set LastEditors
+ * @Description: In User Settings Edit
+ * @FilePath: /xcmd/inc/xcmd_confg.h
+ */
+#ifndef XCMD_CONFG_H
+#define XCMD_CONFG_H
+
+#ifdef __cplusplus
+extern   "C" {
+#endif
+
+#include "xcmd_define.h"
+
+#define XCMD_LINE_MAX_LENGTH            (32)           /* 命令行支持的最大字符数 */
+#define XCMD_HISTORY_MAX_NUM            (0)            /* 支持的历史记录个数, 这个参数对内存的影响很大，建议arduino设置为0，0为不支持 */
+#define XCMD_PARAM_MAX_NUM              (8)             /* 支持输入的参数个数 */
+// #define XCMD_DEFAULT_PROMPT           "->"            /* 提示符 */
+// #define XCMD_DEFAULT_PROMPT_CLOLR     TX_GREEN        /* 提示符颜色 */
+// #define ENABLE_XCMD_EXPORT                            /* 需要修改lds，启用后支持XCMD_EXPORT_CMD和XCMD_EXPORT_KEY方法导出命令 */
+
+#ifdef __cplusplus
+        }
+#endif
+
+#endif /* XCMD_CONFG_H */
diff --git a/example/arduino/xcmd_default_cmds.c b/example/arduino/xcmd_default_cmds.c
deleted file mode 120000
index fe722cd..0000000
--- a/example/arduino/xcmd_default_cmds.c
+++ /dev/null
@@ -1 +0,0 @@
-../../src/xcmd_default_cmds.c
\ No newline at end of file
diff --git a/example/arduino/xcmd_default_cmds.h b/example/arduino/xcmd_default_cmds.h
deleted file mode 120000
index e240ef6..0000000
--- a/example/arduino/xcmd_default_cmds.h
+++ /dev/null
@@ -1 +0,0 @@
-../../inc/xcmd_default_cmds.h
\ No newline at end of file
diff --git a/example/arduino/xcmd_default_keys.c b/example/arduino/xcmd_default_keys.c
deleted file mode 120000
index 8c556f2..0000000
--- a/example/arduino/xcmd_default_keys.c
+++ /dev/null
@@ -1 +0,0 @@
-../../src/xcmd_default_keys.c
\ No newline at end of file
diff --git a/example/arduino/xcmd_default_keys.h b/example/arduino/xcmd_default_keys.h
deleted file mode 120000
index 5947bfc..0000000
--- a/example/arduino/xcmd_default_keys.h
+++ /dev/null
@@ -1 +0,0 @@
-../../inc/xcmd_default_keys.h
\ No newline at end of file
diff --git a/example/arduino/xcmd_define.h b/example/arduino/xcmd_define.h
deleted file mode 120000
index 816af6e..0000000
--- a/example/arduino/xcmd_define.h
+++ /dev/null
@@ -1 +0,0 @@
-../../inc/xcmd_define.h
\ No newline at end of file
diff --git a/example/esp_idf/main/esp_idf.c b/example/esp_idf/main/esp_idf.c
index b77a499..40b2687 100755
--- a/example/esp_idf/main/esp_idf.c
+++ b/example/esp_idf/main/esp_idf.c
@@ -10,8 +10,6 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include "xcmd.h"
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
 #include "test.h"
 
 int cmd_get_char(unsigned char *ch)
diff --git a/example/esp_idf/main/xcmd_confg.h b/example/esp_idf/main/xcmd_confg.h
new file mode 100755
index 0000000..cf3819c
--- /dev/null
+++ b/example/esp_idf/main/xcmd_confg.h
@@ -0,0 +1,29 @@
+/*
+ * @Author: your name
+ * @Date: 2021-09-17 23:03:06
+ * @LastEditTime: 2021-10-11 21:40:01
+ * @LastEditors: Please set LastEditors
+ * @Description: In User Settings Edit
+ * @FilePath: /xcmd/inc/xcmd_confg.h
+ */
+#ifndef XCMD_CONFG_H
+#define XCMD_CONFG_H
+
+#ifdef __cplusplus
+extern   "C" {
+#endif
+
+#include "xcmd_define.h"
+
+#define XCMD_LINE_MAX_LENGTH          (128)           /* 命令行支持的最大字符数 */
+#define XCMD_HISTORY_MAX_NUM          (16)            /* 支持的历史记录个数, 这个参数对内存的影响很大，建议arduino设置为0，0为不支持 */
+#define XCMD_PARAM_MAX_NUM            (8)             /* 支持输入的参数个数 */
+// #define XCMD_DEFAULT_PROMPT           "->"            /* 提示符 */
+// #define XCMD_DEFAULT_PROMPT_CLOLR     TX_GREEN        /* 提示符颜色 */
+// #define ENABLE_XCMD_EXPORT                            /* 需要修改lds，启用后支持XCMD_EXPORT_CMD和XCMD_EXPORT_KEY方法导出命令 */
+
+#ifdef __cplusplus
+        }
+#endif
+
+#endif /* XCMD_CONFG_H */
diff --git a/example/linux/Makefile b/example/linux/Makefile
index 2fba5d9..61fa7f5 100755
--- a/example/linux/Makefile
+++ b/example/linux/Makefile
@@ -40,7 +40,7 @@ all: mkbuilddir $(OBJ_WITH_BUILD_DIR)
 	gcc $(OBJ_WITH_BUILD_DIR) -o $(BIN) -Wl,-Map,$(BIN).map
 
 build/%.o:%.c
-	gcc -g -Wall -c $(INC) -o $@ $<
+	gcc -g -O0 -Wall -c $(INC) -o $@ $<
 
 .PHONY:mkbuilddir
 mkbuilddir:
@@ -48,6 +48,6 @@ mkbuilddir:
 
 .PHONY:clean 
 clean:
-	rm -rf build xcmder
+	rm -rf build xcmder fatfs.img xcmder.map
 
 
diff --git a/example/linux/xcmd_confg.h b/example/linux/xcmd_confg.h
new file mode 100755
index 0000000..cff342d
--- /dev/null
+++ b/example/linux/xcmd_confg.h
@@ -0,0 +1,29 @@
+/*
+ * @Author: your name
+ * @Date: 2021-09-17 23:03:06
+ * @LastEditTime: 2021-10-11 21:40:01
+ * @LastEditors: Please set LastEditors
+ * @Description: In User Settings Edit
+ * @FilePath: /xcmd/inc/xcmd_confg.h
+ */
+#ifndef XCMD_CONFG_H
+#define XCMD_CONFG_H
+
+#ifdef __cplusplus
+extern   "C" {
+#endif
+
+#include "xcmd_define.h"
+
+#define XCMD_LINE_MAX_LENGTH            (128)           /* 命令行支持的最大字符数 */
+#define XCMD_HISTORY_MAX_NUM            (16)            /* 支持的历史记录个数, 这个参数对内存的影响很大，建议arduino设置为0，0为不支持 */
+#define XCMD_PARAM_MAX_NUM              (8)             /* 支持输入的参数个数 */
+// #define XCMD_DEFAULT_PROMPT           "->"            /* 提示符 */
+// #define XCMD_DEFAULT_PROMPT_CLOLR     TX_GREEN        /* 提示符颜色 */
+// #define ENABLE_XCMD_EXPORT                            /* 需要修改lds，启用后支持XCMD_EXPORT_CMD和XCMD_EXPORT_KEY方法导出命令 */
+
+#ifdef __cplusplus
+        }
+#endif
+
+#endif /* XCMD_CONFG_H */
diff --git a/example/stm32/MDK/stm32f1xx/User/xcmd_confg.h b/example/stm32/MDK/stm32f1xx/User/xcmd_confg.h
new file mode 100755
index 0000000..2c14d2b
--- /dev/null
+++ b/example/stm32/MDK/stm32f1xx/User/xcmd_confg.h
@@ -0,0 +1,29 @@
+/*
+ * @Author: your name
+ * @Date: 2021-09-17 23:03:06
+ * @LastEditTime: 2021-10-11 21:40:01
+ * @LastEditors: Please set LastEditors
+ * @Description: In User Settings Edit
+ * @FilePath: /xcmd/inc/xcmd_confg.h
+ */
+#ifndef XCMD_CONFG_H
+#define XCMD_CONFG_H
+
+#ifdef __cplusplus
+extern   "C" {
+#endif
+
+#include "xcmd_define.h"
+
+#define XCMD_LINE_MAX_LENGTH            (64)           /* 命令行支持的最大字符数 */
+#define XCMD_HISTORY_MAX_NUM            (4)            /* 支持的历史记录个数, 这个参数对内存的影响很大，建议arduino设置为0，0为不支持 */
+#define XCMD_PARAM_MAX_NUM              (8)             /* 支持输入的参数个数 */
+// #define XCMD_DEFAULT_PROMPT           "->"            /* 提示符 */
+// #define XCMD_DEFAULT_PROMPT_CLOLR     TX_GREEN        /* 提示符颜色 */
+// #define ENABLE_XCMD_EXPORT                            /* 需要修改lds，启用后支持XCMD_EXPORT_CMD和XCMD_EXPORT_KEY方法导出命令 */
+
+#ifdef __cplusplus
+        }
+#endif
+
+#endif /* XCMD_CONFG_H */
diff --git a/example/stm32/MDK/stm32f4xx/user/xcmd_confg.h b/example/stm32/MDK/stm32f4xx/user/xcmd_confg.h
new file mode 100755
index 0000000..2c14d2b
--- /dev/null
+++ b/example/stm32/MDK/stm32f4xx/user/xcmd_confg.h
@@ -0,0 +1,29 @@
+/*
+ * @Author: your name
+ * @Date: 2021-09-17 23:03:06
+ * @LastEditTime: 2021-10-11 21:40:01
+ * @LastEditors: Please set LastEditors
+ * @Description: In User Settings Edit
+ * @FilePath: /xcmd/inc/xcmd_confg.h
+ */
+#ifndef XCMD_CONFG_H
+#define XCMD_CONFG_H
+
+#ifdef __cplusplus
+extern   "C" {
+#endif
+
+#include "xcmd_define.h"
+
+#define XCMD_LINE_MAX_LENGTH            (64)           /* 命令行支持的最大字符数 */
+#define XCMD_HISTORY_MAX_NUM            (4)            /* 支持的历史记录个数, 这个参数对内存的影响很大，建议arduino设置为0，0为不支持 */
+#define XCMD_PARAM_MAX_NUM              (8)             /* 支持输入的参数个数 */
+// #define XCMD_DEFAULT_PROMPT           "->"            /* 提示符 */
+// #define XCMD_DEFAULT_PROMPT_CLOLR     TX_GREEN        /* 提示符颜色 */
+// #define ENABLE_XCMD_EXPORT                            /* 需要修改lds，启用后支持XCMD_EXPORT_CMD和XCMD_EXPORT_KEY方法导出命令 */
+
+#ifdef __cplusplus
+        }
+#endif
+
+#endif /* XCMD_CONFG_H */
diff --git a/extensions/ex_cmds/ex_cmds.c b/extensions/ex_cmds/ex_cmds.c
index 118d0a1..6e4d8a6 100644
--- a/extensions/ex_cmds/ex_cmds.c
+++ b/extensions/ex_cmds/ex_cmds.c
@@ -24,9 +24,13 @@ static int cmd_run(int argc, char* argv[])
     return 0;
 }
 
+XCMD_EXPORT_CMD(run, cmd_run, HELP_RUN)
+
 static xcmd_t cmds[] = 
 {
+#ifndef ENABLE_XCMD_EXPORT
     {"run", cmd_run, HELP_RUN, NULL},
+#endif
 };
 
 void ex_cmds_init(void)
diff --git a/extensions/ex_keys/ex_keys.c b/extensions/ex_keys/ex_keys.c
index 49f9609..a5f9a5f 100644
--- a/extensions/ex_keys/ex_keys.c
+++ b/extensions/ex_keys/ex_keys.c
@@ -29,6 +29,7 @@ static int xcmd_ctr_u(void *pv)
     return 0;
 }
 
+
 static int xcmd_ctr_k(void *pv)
 {
     /* 删除光标右边的所有字符 */
@@ -51,6 +52,7 @@ static int xcmd_ctr_l(void *pv)
     return 0;
 }
 
+
 static int xcmd_ctr_left(void *pv)
 {
     char *line = xcmd_display_get();
@@ -76,6 +78,7 @@ static int xcmd_ctr_left(void *pv)
     return 0;
 }
 
+
 static int xcmd_ctr_right(void *pv)
 {
     char *line = xcmd_display_get();
@@ -99,8 +102,17 @@ static int xcmd_ctr_right(void *pv)
     return 0;
 }
 
+XCMD_EXPORT_KEY(KEY_CTR_A, xcmd_ctr_a, "ctr+a")
+XCMD_EXPORT_KEY(KEY_CTR_E, xcmd_ctr_e, "ctr+e")
+XCMD_EXPORT_KEY(KEY_CTR_U, xcmd_ctr_u, "ctr+u")
+XCMD_EXPORT_KEY(KEY_CTR_K, xcmd_ctr_k, "ctr+k")
+XCMD_EXPORT_KEY(KEY_CTR_L, xcmd_ctr_l, "ctr+l")
+XCMD_EXPORT_KEY(KEY_CTR_LEFT, xcmd_ctr_left, "ctr+lelf")
+XCMD_EXPORT_KEY(KEY_CTR_RIGHT, xcmd_ctr_right, "ctr+lelf")
+
 static xcmd_key_t ex_keys[] = 
 {
+#ifndef ENABLE_XCMD_EXPORT
     {KEY_CTR_A, xcmd_ctr_a, "ctr+a", NULL},
     {KEY_CTR_E, xcmd_ctr_e, "ctr+e", NULL},
     {KEY_CTR_U, xcmd_ctr_u, "ctr+u", NULL},
@@ -108,6 +120,7 @@ static xcmd_key_t ex_keys[] =
     {KEY_CTR_L, xcmd_ctr_l, "ctr+l", NULL},
     {KEY_CTR_LEFT, xcmd_ctr_left, "ctr+lelf", NULL},
     {KEY_CTR_RIGHT, xcmd_ctr_right, "ctr+right", NULL},
+#endif
 };
 
 
diff --git a/extensions/ex_list/ex_list.c b/extensions/ex_list/ex_list.c
index 73655c6..c098dbe 100644
--- a/extensions/ex_list/ex_list.c
+++ b/extensions/ex_list/ex_list.c
@@ -53,7 +53,6 @@ static int list_test(int argc, char* argv[])
     return 0;
 }
 
-
 static int list_note_del(int argc, char* argv[])
 {
     struct student *p;
@@ -268,17 +267,24 @@ static int List_traverse(int argc, char* argv[])
     return 0; 
 }
 
-static xcmd_t cmds[] = 
-{
+XCMD_EXPORT_CMD(list,   list_test, "list test demo")          //链表增加节点
+XCMD_EXPORT_CMD(list1,   list_note_del, "list note del demo")     //链表删除节点
+XCMD_EXPORT_CMD(list2,   list_note_rep, "list note replace demo") //链表替换节点
+XCMD_EXPORT_CMD(list3,   list_note_del_insert, "list note del and insert demo")   //链表删除并插入节点
+XCMD_EXPORT_CMD(list4,   List_to_merge, "List to merge")      //链表的合并
+XCMD_EXPORT_CMD(list5,   List_traverse, "List to merge")      //链表的遍历
+
+static xcmd_t cmds[] = {
+#ifndef ENABLE_XCMD_EXPORT
     {"list",   list_test, "list test demo", NULL},          //链表增加节点
     {"list1",   list_note_del, "list note del demo", NULL},     //链表删除节点
     {"list2",   list_note_rep, "list note replace demo", NULL}, //链表替换节点
     {"list3",   list_note_del_insert, "list note del and insert demo", NULL},   //链表删除并插入节点
     {"list4",   List_to_merge, "List to merge", NULL},      //链表的合并
     {"list5",   List_traverse, "List to merge", NULL},      //链表的遍历
+#endif
 };
 
-
 void ex_list_init(void)
 {
     xcmd_cmd_register(cmds, sizeof(cmds)/sizeof(xcmd_t));
diff --git a/extensions/fs_cmds/fs_cmds.c b/extensions/fs_cmds/fs_cmds.c
index 3ef4d7c..de6de95 100644
--- a/extensions/fs_cmds/fs_cmds.c
+++ b/extensions/fs_cmds/fs_cmds.c
@@ -437,18 +437,33 @@ static int cmd_write(int argc, char *argv[])
     return 0;
 }
 
+ 
+
+XCMD_EXPORT_CMD(ls,  cmd_ls, HELP_LS)
+XCMD_EXPORT_CMD(df,  cmd_df, HELP_DF)
+XCMD_EXPORT_CMD(cd,  cmd_cd, HELP_CD)
+XCMD_EXPORT_CMD(read,  cmd_read, HELP_READ)
+XCMD_EXPORT_CMD(rm,  cmd_rm, HELP_RM)
+XCMD_EXPORT_CMD(mv,  cmd_mv, HELP_MV)
+XCMD_EXPORT_CMD(sync,  cmd_sync, HELP_SYNC)
+XCMD_EXPORT_CMD(mkdir,  cmd_mkdir, HELP_MKDIR)
+XCMD_EXPORT_CMD(touch,  cmd_touch, HELP_TOUCH)
+XCMD_EXPORT_CMD(write,  cmd_write, HELP_WRITE)
+
 static xcmd_t cmds[] =
-    {
-        {"ls", cmd_ls, HELP_LS, NULL},
-        {"df", cmd_df, HELP_DF, NULL},
-        {"cd", cmd_cd, HELP_CD, NULL},
-        {"read", cmd_read, HELP_READ, NULL},
-        {"rm", cmd_rm, HELP_RM, NULL},
-        {"mv", cmd_mv, HELP_MV, NULL},
-        {"sync", cmd_sync, HELP_SYNC, NULL},
-        {"mkdir", cmd_mkdir, HELP_MKDIR, NULL},
-        {"touch", cmd_touch, HELP_TOUCH, NULL},
-        {"write", cmd_write, HELP_WRITE, NULL},
+{
+#ifndef ENABLE_XCMD_EXPORT
+    {"ls", cmd_ls, HELP_LS, NULL},
+    {"df", cmd_df, HELP_DF, NULL},
+    {"cd", cmd_cd, HELP_CD, NULL},
+    {"read", cmd_read, HELP_READ, NULL},
+    {"rm", cmd_rm, HELP_RM, NULL},
+    {"mv", cmd_mv, HELP_MV, NULL},
+    {"sync", cmd_sync, HELP_SYNC, NULL},
+    {"mkdir", cmd_mkdir, HELP_MKDIR, NULL},
+    {"touch", cmd_touch, HELP_TOUCH, NULL},
+    {"write", cmd_write, HELP_WRITE, NULL},
+#endif
 };
 
 void fs_cmds_init(void)
diff --git a/extensions/net_cmds/socket_cmds.c b/extensions/net_cmds/socket_cmds.c
index 16b4d64..1308aab 100644
--- a/extensions/net_cmds/socket_cmds.c
+++ b/extensions/net_cmds/socket_cmds.c
@@ -94,10 +94,14 @@ static int xcmd_udp_service(int argc, char** argv)
     return 0;
 }
 
+XCMD_EXPORT_CMD(udp_client, xcmd_udp_client, "Usage: udp_client ip port msg")
+XCMD_EXPORT_CMD(udp_service, xcmd_udp_service, "Usage: udp_service [ip] [port:default(8080)]")
 static xcmd_t cmds[] = 
 {
+#ifndef ENABLE_XCMD_EXPORT
     {"udp_client", xcmd_udp_client, "Usage: udp_client ip port msg", NULL},
     {"udp_service", xcmd_udp_service, "Usage: udp_service [ip] [port:default(8080)]", NULL},
+#endif
 };
 
 void socket_cmds_init(void)
diff --git a/extensions/test/test.c b/extensions/test/test.c
index 5df3e7e..06dc50c 100644
--- a/extensions/test/test.c
+++ b/extensions/test/test.c
@@ -169,18 +169,26 @@ static int cmd_print_color(int argc, char* argv[])
     return 0;
 }
 
+XCMD_EXPORT_CMD(history, cmd_history, "show history list")
+XCMD_EXPORT_CMD(example, cmd_example, "example [-f|-i|-s] [val]")
+XCMD_EXPORT_CMD(color,   cmd_print_color, "printf color text")
+
 static xcmd_t cmds[] = 
 {
+#ifndef ENABLE_XCMD_EXPORT
     {"history", cmd_history, "show history list", NULL},
     {"example", cmd_example, "example [-f|-i|-s] [val]", NULL},
     {"delcmd",  cmd_delete_cmd, "delete cmd [val]", NULL},
     {"delkey",  cmd_delete_key, "delete key [val]", NULL},
     {"color",   cmd_print_color, "printf color text", NULL},
+#endif
 };
 
 static xcmd_key_t keys[] = 
 {
+#ifndef ENABLE_XCMD_EXPORT
     {KEY_CTR_Q, cmd_ctr_q, "ctr+q", NULL},
+#endif
 };
 
 void test_cmd_init(void)
diff --git a/inc/xcmd.h b/inc/xcmd.h
index 215610a..69d0708 100755
--- a/inc/xcmd.h
+++ b/inc/xcmd.h
@@ -9,6 +9,7 @@
 #include <math.h>
 #include <stdarg.h>
 #include "xcmd_define.h"
+#include "xcmd_default_confg.h"
 
 #ifdef __cplusplus
 extern   "C" {
@@ -19,18 +20,22 @@ typedef int(*cmd_key_func_t)(void *);
 
 typedef struct __cmd
 {
-    char* name;
+    const char* name;
     cmd_func_t func;
-    char* help;
+    const char* help;
+#ifndef ENABLE_XCMD_EXPORT
     struct  __cmd *next;
+#endif
 }xcmd_t;
 
 typedef struct __key
 {
-    char* key;
+    const char* key;
     cmd_key_func_t func;
-    char* help;
+    const char* help;
+#ifndef ENABLE_XCMD_EXPORT
     struct __key *next;
+#endif
 }xcmd_key_t;
 
 
@@ -65,22 +70,6 @@ int xcmd_cmd_register(xcmd_t* cmds, uint16_t number);
  */
 int xcmd_key_register(xcmd_key_t* keys, uint16_t number);
 
-/**
- * @description: 获取命令列表，可以通过next指针可以遍历所有指令
- * @param {*} 
- * @param {} 
- * @return {xcmd_t *}：指令链表表头
- */
-xcmd_t *xcmd_cmdlist_get(void);
-
-/**
- * @description: 获取按键列表，可以通过next指针可以遍历所有按键
- * @param {*} 
- * @param {} 
- * @return {xcmd_key_t *}：快捷键链表表头
- */
-xcmd_key_t *xcmd_keylist_get(void);
-
 /**
  * @description: 删除已经注册的cmd
  * @param {char*} cmd：cmd集
@@ -95,6 +84,70 @@ int xcmd_unregister_cmd(char *cmd);
  */
 int xcmd_unregister_key(char *key);
 
+#ifndef XCMD_SECTION
+    #if defined(__CC_ARM) || defined(__CLANG_ARM)
+        #define XCMD_SECTION(x)                __attribute__((section(x)))
+    #elif defined (__IAR_SYSTEMS_ICC__)
+        #define XCMD_SECTION(x)                @ x
+    #elif defined(__GNUC__)
+        #define XCMD_SECTION(x)                __attribute__((section(x)))
+    #else
+        #define XCMD_SECTION(x)
+    #endif
+#endif
+
+#ifndef XCMD_USED
+    #if defined(__CC_ARM) || defined(__CLANG_ARM)
+        #define XCMD_USED                      __attribute__((used))
+    #elif defined (__IAR_SYSTEMS_ICC__)
+        #define XCMD_USED                      __root
+    #elif defined(__GNUC__)
+        #define XCMD_USED                      __attribute__((used))
+    #else
+        #define XCMD_USED
+    #endif
+#endif
+
+#ifdef ENABLE_XCMD_EXPORT
+#define XCMD_EXPORT_CMD(_name, _func, _help)        XCMD_USED const xcmd_t XCMD_SECTION("_xcmd_cmd_list") \
+                                                    xcmd_cmd_##_name={\
+                                                        .name=#_name, \
+                                                        .func=_func, \
+                                                        .help=_help\
+                                                        };
+#define XCMD_EXPORT_KEY(_key, _func, _help)         XCMD_USED const xcmd_key_t XCMD_SECTION("_xcmd_key_list") \
+                                                    xcmd_key_##_key={\
+                                                        .key=_key, \
+                                                        .func=_func, \
+                                                        .help=_help\
+                                                        };
+extern xcmd_t       _xcmd_cmd_list_start;
+extern xcmd_t       _xcmd_cmd_list_end;
+extern xcmd_key_t   _xcmd_key_list_start;
+extern xcmd_key_t   _xcmd_key_list_end;
+#define XCMD_CMD_FOR_EACH(pos)  for ((pos) = &_xcmd_cmd_list_start; (pos)<&_xcmd_cmd_list_end; ++(pos))
+#define XCMD_KEY_FOR_EACH(pos)  for ((pos) = &_xcmd_key_list_start; (pos)<&_xcmd_key_list_end; ++(pos))
+#else
+/**
+ * @description: 获取命令列表，可以通过next指针可以遍历所有指令
+ * @param {*} 
+ * @param {} 
+ * @return {xcmd_t *}：指令链表表头
+ */
+xcmd_t *xcmd_cmdlist_get(void);
+/**
+ * @description: 获取按键列表，可以通过next指针可以遍历所有按键
+ * @param {*} 
+ * @param {} 
+ * @return {xcmd_key_t *}：快捷键链表表头
+ */
+xcmd_key_t *xcmd_keylist_get(void);
+#define XCMD_EXPORT_CMD(name, func, help)
+#define XCMD_EXPORT_KEY(key, func, help)
+#define XCMD_CMD_FOR_EACH(pos)  for ((pos) = xcmd_cmdlist_get(); (pos); (pos) = (pos)->next)
+#define XCMD_KEY_FOR_EACH(pos)  for ((pos) = xcmd_keylist_get(); (pos); (pos) = (pos)->next)
+#endif
+
 /**
  * @description: 手动执行命令
  * @param {char* } str：命令
@@ -223,6 +276,10 @@ void  xcmd_history_slider_reset(void);
  */
 char* xcmd_end_of_input(void);
 
+
+
+
+
 #ifdef __cplusplus
         }
 #endif
diff --git a/inc/xcmd_confg.h b/inc/xcmd_default_confg.h
similarity index 71%
rename from inc/xcmd_confg.h
rename to inc/xcmd_default_confg.h
index 4827797..b93535a 100755
--- a/inc/xcmd_confg.h
+++ b/inc/xcmd_default_confg.h
@@ -4,16 +4,18 @@
  * @LastEditTime: 2021-10-11 21:40:01
  * @LastEditors: Please set LastEditors
  * @Description: In User Settings Edit
- * @FilePath: /xcmd/inc/xcmd_confg.h
+ * @FilePath: /xcmd/inc/xcmd_default_confg.h
  */
-#ifndef XCMD_CONFG_H
-#define XCMD_CONFG_H
+#ifndef XCMD_DEFAULT_CONFG_H
+#define XCMD_DEFAULT_CONFG_H
 
 #ifdef __cplusplus
 extern   "C" {
 #endif
 
-#define VERSION "1.0.0"
+#include "xcmd_confg.h"
+
+#define VERSION "1.1.0"
 
 #ifndef XCMD_LINE_MAX_LENGTH
 #define XCMD_LINE_MAX_LENGTH    (64) /* 命令行支持的最大字符数 */
@@ -37,15 +39,19 @@ extern   "C" {
 #endif 
 
 #ifndef XCMD_DEFAULT_PROMPT
-#define XCMD_DEFAULT_PROMPT     ("->")
+#define XCMD_DEFAULT_PROMPT     "->" /*提示符*/
 #endif
 
 #ifndef XCMD_DEFAULT_PROMPT_CLOLR
-#define XCMD_DEFAULT_PROMPT_CLOLR   TX_GREEN
+#define XCMD_DEFAULT_PROMPT_CLOLR   TX_GREEN /*提示符颜色*/
+#endif
+
+#ifndef ENABLE_XCMD_EXPORT
+//#define ENABLE_XCMD_EXPORT /*使能XCMD_EXPORT_CMD和XCMD_EXPORT_KEY*/
 #endif
 
 #ifdef __cplusplus
         }
 #endif
 
-#endif /* XCMD_CONFG_H */
+#endif /* XCMD_DEFAULT_CONFG_H */
diff --git a/inc/xcmd_define.h b/inc/xcmd_define.h
index 2de84e4..966f2c2 100644
--- a/inc/xcmd_define.h
+++ b/inc/xcmd_define.h
@@ -94,7 +94,7 @@ extern   "C" {
 #define DCH(n)      "\x1B[%dP",n	/* 删除字符	删除当前光标位置的 <n> 个字符，这会从屏幕右边缘以空格字符移动。*/
 #define ECH(n)      "\x1B[%dX",n	/* 擦除字符	擦除当前光标位置的 <n> 个字符，方法是使用空格字符覆盖它们。*/
 #define IL(n)       "\x1B[%dL",n	/* 插入行	将 <n> 行插入光标位置的缓冲区。 光标所在的行及其下方的行将向下移动。*/
-#define DL(n)       "\x1B[%dM",n	/* 删除行	从缓冲区中删除 <n> 行，从光标所在的行开始。*/
+#define DL(n)       "\x1B[%dM\r",n	/* 删除行	从缓冲区中删除 <n> 行，从光标所在的行开始。*/
 
 /* 打印字体颜色设置 */
 #define TX_DEF          "\x1b[0m"
diff --git a/src/xcmd.c b/src/xcmd.c
index 21a6c59..328fb5b 100755
--- a/src/xcmd.c
+++ b/src/xcmd.c
@@ -1,4 +1,3 @@
-#include "xcmd_confg.h"
 #include "xcmd.h"
 #include "xcmd_default_cmds.h"
 #include "xcmd_default_keys.h"
@@ -28,12 +27,12 @@ struct
 
     struct 
     {
-        xcmd_t *head;
+        xcmd_t head;
     }cmd_list;
 
     struct
     {
-        xcmd_key_t *head;
+        xcmd_key_t head;
     }key_list;
 
     struct
@@ -162,10 +161,10 @@ static int xcmd_get_param(char* msg, char*delim, char* get[], int max_num)
 
 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)
+    xcmd_t *p = NULL;
+    XCMD_CMD_FOR_EACH(p)
     {
         if(strcmp(p->name, argv[0]) == 0)
         {
@@ -182,7 +181,6 @@ static int xcmd_cmd_match(int argc, char*argv[])
             ret = p->func(argc, argv);
             break;
         }
-        p = p->next;
     }
     if(flag)
     {
@@ -197,8 +195,8 @@ static int xcmd_cmd_match(int argc, char*argv[])
 
 static void xcmd_key_match(char* key)
 {
-    xcmd_key_t *p = g_xcmder.key_list.head;
-    while(p)
+    xcmd_key_t *p = NULL;
+    XCMD_KEY_FOR_EACH(p)
     {
         if(strcmp(key, p->key) == 0)
         {
@@ -207,7 +205,6 @@ static void xcmd_key_match(char* key)
                 break;
             }
         }
-        p = p->next;
     }
 }
 
@@ -546,48 +543,57 @@ int xcmd_exec(char* str)
 
 int xcmd_key_register(xcmd_key_t *keys, uint16_t number)
 {
+#ifndef ENABLE_XCMD_EXPORT
     uint16_t i=0; 
     xcmd_key_t * temp;
 
     while(i<number)
     {
-        temp = g_xcmder.key_list.head;
-        g_xcmder.key_list.head = &keys[i];
+        temp = g_xcmder.key_list.head.next;
+        g_xcmder.key_list.head.next = &keys[i];
         keys[i].next = temp;
         ++i;
     }
+#endif
     return 0;
 }
 
 int xcmd_cmd_register(xcmd_t *cmds, uint16_t number)
 {
+#ifndef ENABLE_XCMD_EXPORT
     xcmd_t * temp;
     uint16_t i = 0;
     while(i<number)
     {
-        temp = g_xcmder.cmd_list.head;
-        g_xcmder.cmd_list.head = &cmds[i];
+        temp = g_xcmder.cmd_list.head.next;
+        g_xcmder.cmd_list.head.next = &cmds[i];
         cmds[i].next = temp;
         ++i;
     }
+#endif
     return 0;
 }
 
 xcmd_key_t *xcmd_keylist_get(void)
 {
-    return g_xcmder.key_list.head;
+#ifndef ENABLE_XCMD_EXPORT
+    return g_xcmder.key_list.head.next;
+#endif
 }
 
 xcmd_t *xcmd_cmdlist_get(void)
 {
-    return g_xcmder.cmd_list.head;
+#ifndef ENABLE_XCMD_EXPORT
+    return g_xcmder.cmd_list.head.next;
+#endif
 }
 
 int xcmd_unregister_cmd(char *cmd)
 {
-    xcmd_t *p = g_xcmder.cmd_list.head;
-    xcmd_t *bk = p;
-    while(p)
+#ifndef ENABLE_XCMD_EXPORT
+    xcmd_t *bk = &g_xcmder.cmd_list.head;
+    xcmd_t *p = NULL;
+    XCMD_CMD_FOR_EACH(p)
     {
         if(strcmp(cmd, p->name) == 0)
         {
@@ -595,16 +601,17 @@ int xcmd_unregister_cmd(char *cmd)
             return 0;
         }
         bk = p;
-        p = p->next;
     }
+#endif
     return -1;
 }
 
 int xcmd_unregister_key(char *key)
 {
-    xcmd_key_t *p = g_xcmder.key_list.head;
-    xcmd_key_t *bk = p;
-    while(p)
+#ifndef ENABLE_XCMD_EXPORT
+    xcmd_key_t *bk = &g_xcmder.key_list.head;
+    xcmd_key_t *p = NULL;
+    XCMD_KEY_FOR_EACH(p)
     {
         if(strcmp(key, p->key) == 0)
         {
@@ -612,8 +619,8 @@ int xcmd_unregister_key(char *key)
             return 0;
         }
         bk = p;
-        p = p->next;
     }
+#endif
     return -1;
 }
 
@@ -646,7 +653,9 @@ void xcmd_init( int (*get_c)(uint8_t*), int (*put_c)(uint8_t))
         g_xcmder.parser.byte_num = 0;
         g_xcmder.parser.cursor = 0;
 		g_xcmder.parser.encode_case_stu = 0;
-        g_xcmder.cmd_list.head = NULL;
+#ifndef ENABLE_XCMD_EXPORT
+        g_xcmder.cmd_list.head.next = NULL;
+#endif
 
         if(g_xcmder._initOK == 0)
         {
diff --git a/src/xcmd_default_cmds.c b/src/xcmd_default_cmds.c
index 835cba7..08d7113 100755
--- a/src/xcmd_default_cmds.c
+++ b/src/xcmd_default_cmds.c
@@ -6,7 +6,7 @@
  * @Description: In User Settings Edit
  * @FilePath: /xcmd/src/xcmd_default_cmds.c
  */
-#include "xcmd_confg.h"
+#include "xcmd_default_confg.h"
 #include "xcmd_default_cmds.h"
 #include "xcmd.h"
 #include <stdlib.h>
@@ -19,23 +19,21 @@ static int cmd_clear(int argc, char* argv[])
 
 static int cmd_help(int argc, char* argv[])
 {
-    xcmd_t *p = xcmd_cmdlist_get();
-    while(p)
+    xcmd_t *p = NULL;
+    XCMD_CMD_FOR_EACH(p)
     {
         xcmd_print("%-20s %s\r\n",p->name, p->help);
-        p = p->next;
     }
     return 0;
 }
 
 static int cmd_keys(int argc, char* argv[])
 {
-    xcmd_key_t *p = xcmd_keylist_get();
-    while(p)
+    xcmd_key_t *p = NULL;
+    XCMD_KEY_FOR_EACH(p)
     {
         xcmd_print("0x%08X\t", p->key);
         xcmd_print("%s\r\n",p->help);
-        p = p->next;
     }
     return 0;
 }
@@ -53,12 +51,19 @@ static int cmd_logo(int argc, char* argv[])
     return 0;
 }
 
+XCMD_EXPORT_CMD(clear, cmd_clear, "clear screen")
+XCMD_EXPORT_CMD(help, cmd_help, "show this list")
+XCMD_EXPORT_CMD(keys, cmd_keys, "show keys")
+XCMD_EXPORT_CMD(logo, cmd_logo, "show logo")
+
 static xcmd_t cmds[] = 
 {
+#ifndef ENABLE_XCMD_EXPORT
     {"clear", cmd_clear, "clear screen", NULL},
     {"help", cmd_help, "show this list", NULL},
     {"keys", cmd_keys, "show keys", NULL},
     {"logo", cmd_logo, "show logo", NULL},
+#endif
 };
 
 void default_cmds_init(void)
diff --git a/src/xcmd_default_keys.c b/src/xcmd_default_keys.c
index 671b16c..9e85f43 100755
--- a/src/xcmd_default_keys.c
+++ b/src/xcmd_default_keys.c
@@ -6,7 +6,7 @@
  * @Description: In User Settings Edit
  * @FilePath: /xcmd/src/xcmd_default_keys.c
  */
-#include "xcmd_confg.h"
+#include "xcmd_default_confg.h"
 #include "xcmd.h"
 #include "xcmd_default_keys.h"
 
@@ -23,11 +23,14 @@ static int xcmd_str_match(const char* str1, const char* str2)
     return i;
 }
 
+
 static int xcmd_del_char(void *pv)
 {
 	xcmd_display_delete_char();
     return 0;
 }
+XCMD_EXPORT_KEY(KEY_CTR_H, xcmd_del_char, "backspace")
+XCMD_EXPORT_KEY(KEY_BACKSPACE, xcmd_del_char, "delete")
 
 static int xcmd_enter(void *pv)
 {
@@ -43,9 +46,10 @@ static int xcmd_enter(void *pv)
 #else
         xcmd_print(XCMD_DEFAULT_PROMPT_CLOLR "%s" TX_DEF, xcmd_get_prompt());
 #endif
-    
     return 0;
 }
+XCMD_EXPORT_KEY(KEY_CTR_M, xcmd_enter, "enter")
+XCMD_EXPORT_KEY(KEY_CTR_J, xcmd_enter, "enter")
 
 static int xcmd_cursor_left(void *pv)
 {
@@ -57,6 +61,7 @@ static int xcmd_cursor_left(void *pv)
 	}
     return 0;
 }
+XCMD_EXPORT_KEY(KEY_LEFT, xcmd_cursor_left, "left")
 
 static int xcmd_cursor_right(void *pv)
 {
@@ -65,6 +70,7 @@ static int xcmd_cursor_right(void *pv)
     xcmd_display_cursor_set(pos);
     return 0;
 }
+XCMD_EXPORT_KEY(KEY_RIGHT, xcmd_cursor_right, "right")
 
 #if XCMD_HISTORY_MAX_NUM
 static int xcmd_history_dw(void *pv)
@@ -77,6 +83,7 @@ static int xcmd_history_dw(void *pv)
     }
     return 0;
 }
+XCMD_EXPORT_KEY(KEY_DW, xcmd_history_dw, "down")
 
 static int xcmd_history_up(void *pv)
 {
@@ -88,6 +95,7 @@ static int xcmd_history_up(void *pv)
     }
     return 0;
 }
+XCMD_EXPORT_KEY(KEY_UP, xcmd_history_up, "up")
 #endif
 
 static int xcmd_auto_completion(void *pv)
@@ -95,10 +103,10 @@ static int xcmd_auto_completion(void *pv)
     xcmd_t *match_cmd_first = NULL;
     uint16_t match_num = 0;
     uint16_t match_subscript_min = 0;
-    xcmd_t *p = xcmd_cmdlist_get();
     char *display_line = xcmd_display_get();
     uint16_t cursor_pos = xcmd_display_cursor_get();
-    while(p)
+    xcmd_t *p = NULL;
+    XCMD_CMD_FOR_EACH(p)
     {
         if(strncmp(display_line, p->name, cursor_pos) == 0)
         {
@@ -126,7 +134,6 @@ static int xcmd_auto_completion(void *pv)
             }
             match_num++;
         }
-        p = p->next;
     }
 
     if(match_num == 1)
@@ -142,9 +149,11 @@ static int xcmd_auto_completion(void *pv)
     }
     return 0;
 }
+XCMD_EXPORT_KEY(KEY_TAB, xcmd_auto_completion, "tab")
 
 static xcmd_key_t default_keys[] = 
 {
+#ifndef ENABLE_XCMD_EXPORT
     {KEY_CTR_M,     xcmd_enter,             "enter", NULL},
     {KEY_CTR_J,     xcmd_enter,             "enter", NULL},
     {KEY_CTR_H,     xcmd_del_char,          "backspace", NULL},
@@ -156,6 +165,7 @@ static xcmd_key_t default_keys[] =
     {KEY_DW,        xcmd_history_dw,        "down", NULL},
     {KEY_UP,        xcmd_history_up,        "up", NULL},
 #endif
+#endif
 };
 
 void default_keys_init(void)