diff --git a/rt-thread-version/rt-thread-standard/programming-manual/ipc2/figures/07signal_enable.png b/rt-thread-version/rt-thread-standard/programming-manual/ipc2/figures/07signal_enable.png
new file mode 100644
index 0000000000000000000000000000000000000000..7830aadbd5118f231918044862c3892772f621de
Binary files /dev/null and b/rt-thread-version/rt-thread-standard/programming-manual/ipc2/figures/07signal_enable.png differ
diff --git a/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md b/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md
index 48d223430878b41fa14d31c74d7cba1e9732f5ff..a04ad69779a64b1b58f532ece4bcbdc215ed0a54 100644
--- a/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md
+++ b/rt-thread-version/rt-thread-standard/programming-manual/ipc2/ipc2.md
@@ -595,19 +595,23 @@ rt_ssize_t rt_mq_recv (rt_mq_t mq, void* buffer,
 
  **消息队列的使用例程**
 
-> 注意：RT-Thread 5.0 及更高的版本将 `ALIGN` 关键字改成了 `rt_align`，使用时注意修改。
-
 ```c
 #include <rtthread.h>
 
+#define THREAD1_PRIORITY         25
+#define THREAD1_STACK_SIZE       512
+#define THREAD1_TIMESLICE        5
+
+#define THREAD2_PRIORITY         25
+#define THREAD2_STACK_SIZE       512
+#define THREAD2_TIMESLICE        5
+
 /* 消息队列控制块 */
 static struct rt_messagequeue mq;
 /* 消息队列中用到的放置消息的内存池 */
 static rt_uint8_t msg_pool[2048];
 
-ALIGN(RT_ALIGN_SIZE)
-static char thread1_stack[1024];
-static struct rt_thread thread1;
+static rt_thread_t tid1 = RT_NULL;
 /* 线程 1 入口函数 */
 static void thread1_entry(void *parameter)
 {
@@ -633,9 +637,8 @@ static void thread1_entry(void *parameter)
     rt_mq_detach(&mq);
 }
 
-ALIGN(RT_ALIGN_SIZE)
-static char thread2_stack[1024];
-static struct rt_thread thread2;
+
+static rt_thread_t tid2 = RT_NULL;
 /* 线程 2 入口 */
 static void thread2_entry(void *parameter)
 {
@@ -700,21 +703,23 @@ int msgq_sample(void)
         return -1;
     }
 
-    rt_thread_init(&thread1,
-                   "thread1",
-                   thread1_entry,
-                   RT_NULL,
-                   &thread1_stack[0],
-                   sizeof(thread1_stack), 25, 5);
-    rt_thread_startup(&thread1);
+    /* 动态创建线程1 */
+    tid1 = rt_thread_create("thread1",
+                   thread1_entry, RT_NULL,
+                   THREAD1_STACK_SIZE,
+                   THREAD1_PRIORITY, THREAD1_TIMESLICE);
 
-    rt_thread_init(&thread2,
-                   "thread2",
-                   thread2_entry,
-                   RT_NULL,
-                   &thread2_stack[0],
-                   sizeof(thread2_stack), 25, 5);
-    rt_thread_startup(&thread2);
+    if (tid1 != RT_NULL)
+        rt_thread_startup(tid1);
+
+    /* 动态创建线程2 */
+    tid2 = rt_thread_create("thread2",
+                   thread2_entry, RT_NULL,
+                   THREAD2_STACK_SIZE,
+                   THREAD2_PRIORITY, THREAD2_TIMESLICE);
+
+    if (tid2 != RT_NULL)
+        rt_thread_startup(tid2);
 
     return 0;
 }
@@ -968,6 +973,10 @@ int rt_signal_wait(const rt_sigset_t *set,
 
 这是一个信号的应用例程，如下代码所示。此例程创建了 1 个线程，在安装信号时，信号处理方式设为自定义处理，定义的信号的处理函数为 thread1_signal_handler()。待此线程运行起来安装好信号之后，给此线程发送信号。此线程将接收到信号，并打印信息。
 
+> 注意：使用信号前需要先在menuconfig中使能
+
+![信号量使能](figures/07signal_enable.png)
+
  **信号使用例程**
 
 ```c