diff --git a/02.nicsensor/code_structure.txt b/02.nicsensor/code_structure.txt
index 2e4cc2a..3e9daf7 100644
--- a/02.nicsensor/code_structure.txt
+++ b/02.nicsensor/code_structure.txt
@@ -1,10 +1,10 @@
 On Version V1.2
-    start_get_sensor
+    start_get_sensor //启动读取Sensor的流程
         |--->set_configuration
-        |       |--->set_configuration_5280m7/5468m7/donghu/yichun
-        |--->get_pca9641_controll
-        |--->switch_pca9548_channel
+        |       |--->set_configuration_5280m7/5468m7/donghu/yichun //根据服务器类型设置具体I2C相关参数
+        |--->get_pca9641_controll //如果服务器上有PCA9641,选通它
+        |--->switch_pca9548_channel //切换9548/9546到对应的槽位上
         |--->process_sensor
-                |--->sensor_init
-                |--->read_sensor_value
-                |--->convert_sensor_value
\ No newline at end of file
+                |--->sensor_init //传感器可能需要初始化 
+                |--->read_sensor_value //读取传感器的数值
+                |--->convert_sensor_value //处理传感器的读值并做可视化处理
\ No newline at end of file