diff --git a/kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_once_test_001.cpp b/kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_once_test_001.cpp
index a779ba3..e9ea056 100644
--- a/kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_once_test_001.cpp
+++ b/kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_once_test_001.cpp
@@ -28,83 +28,96 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include "it_pthread_test.h"
-
-static int g_number = 0;
-static int g_okStatus = 777; // 777, a special number indicate the status is ok.
-static pthread_once_t g_onceCtrl = PTHREAD_ONCE_INIT;
-
+#include "it_pthread_test.h" // 包含测试框架的头文件
+ 
+// 全局变量定义
+static int g_number = 0; // 用于记录 InitRoutine 被调用的次数
+static int g_okStatus = 777; // 定义一个特殊的状态值，表示状态正常
+static pthread_once_t g_onceCtrl = PTHREAD_ONCE_INIT; // pthread_once 的控制变量，初始化为未执行状态
+ 
+// 初始化函数，每次调用都会增加 g_number 的值
 static void InitRoutine(void)
 {
     g_number++;
 }
-
+ 
+// 线程函数，测试 pthread_once 的行为
 static void *Threadfunc(void *parm)
 {
     int err;
+    // 确保 InitRoutine 只被调用一次
     err = pthread_once(&g_onceCtrl, InitRoutine);
-    ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
-    return reinterpret_cast<void *>(g_okStatus);
+    ICUNIT_GOTO_EQUAL(err, 0, err, EXIT); // 使用测试框架的宏检查 pthread_once 的返回值是否为 0
+    return reinterpret_cast<void *>(g_okStatus); // 返回状态值
 EXIT:
-    return NULL;
+    return NULL; // 出错时返回 NULL
 }
-
+ 
+// 测试函数，创建多个线程并检查 pthread_once 的行为
 static void *ThreadFuncTest(void *arg)
 {
-    pthread_t thread[3];
-    int rc = 0;
-    int i = 3;
-    void *status;
-    const int threadsNum = 3;
-
-    g_number = 0;
-
+    pthread_t thread[3]; // 定义线程数组，用于存储线程 ID
+    int rc = 0; // 用于存储线程创建和加入的返回值
+    int i = 3; // 循环变量，但立即被重新赋值，这里可能是代码风格问题
+    void *status; // 用于存储线程函数的返回值
+    const int threadsNum = 3; // 定义线程数量
+ 
+    g_number = 0; // 重置全局计数器
+ 
+    // 创建多个线程
     for (i = 0; i < threadsNum; ++i) {
         rc = pthread_create(&thread[i], NULL, Threadfunc, NULL);
-        ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
+        ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT); // 检查 pthread_create 的返回值
     }
-
+ 
+    // 等待所有线程结束
     for (i = 0; i < threadsNum; ++i) {
         rc = pthread_join(thread[i], &status);
-        ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
-        ICUNIT_GOTO_EQUAL((unsigned int)status, (unsigned int)g_okStatus, status, EXIT);
+        ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT); // 检查 pthread_join 的返回值
+        ICUNIT_GOTO_EQUAL((unsigned int)status, (unsigned int)g_okStatus, status, EXIT); // 检查线程函数的返回值
     }
-
+ 
+    // 检查 InitRoutine 是否只被调用了一次
     ICUNIT_GOTO_EQUAL(g_number, 1, g_number, EXIT);
-
+ 
 EXIT:
-    return NULL;
+    return NULL; // 出错时返回 NULL
 }
-
+ 
+// 测试用例函数，设置线程属性并启动测试线程
 static int Testcase(void)
 {
-    int ret;
-    pthread_t newPthread;
-    int curThreadPri, curThreadPolicy;
-    pthread_attr_t a = { 0 };
-    struct sched_param param = { 0 };
-
-    g_onceCtrl = PTHREAD_ONCE_INIT;
-
+    int ret; // 用于存储函数调用的返回值
+    pthread_t newPthread; // 定义新线程的 ID
+    int curThreadPri, curThreadPolicy; // 用于存储当前线程的调度策略和优先级
+    pthread_attr_t a = { 0 }; // 定义线程属性对象并初始化
+    struct sched_param param = { 0 }; // 定义调度参数对象并初始化
+ 
+    g_onceCtrl = PTHREAD_ONCE_INIT; // 重置 pthread_once 的控制变量
+ 
+    // 获取当前线程的调度策略和优先级
     ret = pthread_getschedparam(pthread_self(), &curThreadPolicy, &param);
-    ICUNIT_ASSERT_EQUAL(ret, 0, -ret);
-
-    curThreadPri = param.sched_priority;
-
-    ret = pthread_attr_init(&a);
-    pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED);
-    param.sched_priority = curThreadPri + 2; // 2, adjust the priority.
-    pthread_attr_setschedparam(&a, &param);
-    ret = pthread_create(&newPthread, &a, ThreadFuncTest, 0);
-    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
-
+    ICUNIT_ASSERT_EQUAL(ret, 0, -ret); // 检查 pthread_getschedparam 的返回值
+ 
+    curThreadPri = param.sched_priority; // 获取当前线程的优先级
+ 
+    // 设置新线程的属性
+    ret = pthread_attr_init(&a); // 初始化线程属性
+    pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED); // 设置线程继承调度策略为显式
+    param.sched_priority = curThreadPri + 2; // 设置新线程的优先级为当前线程优先级加 2
+    pthread_attr_setschedparam(&a, &param); // 设置线程调度参数
+    ret = pthread_create(&newPthread, &a, ThreadFuncTest, 0); // 创建新线程并运行测试函数
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret); // 检查 pthread_create 的返回值
+ 
+    // 等待新线程结束
     ret = pthread_join(newPthread, NULL);
-    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
-
-    return 0;
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret); // 检查 pthread_join 的返回值
+ 
+    return 0; // 测试成功结束
 }
-
+ 
+// 注册测试用例
 void ItTestPthreadOnce001(void)
 {
-    TEST_ADD_CASE("IT_PTHREAD_ONCE_001", Testcase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
+    TEST_ADD_CASE("IT_PTHREAD_ONCE_001", Testcase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION); // 使用测试框架的宏注册测试用例
 }