diff --git a/cap_read.py b/cap_read.py
index e39a4ed..62034a7 100644
--- a/cap_read.py
+++ b/cap_read.py
@@ -131,6 +131,7 @@ class ClassCapRead:
                 connectedSensorCnt += 1
 
         if self.socketConnected == True:
+            fingerIndex = 0
             _log1 = ""
             # 输出原始通道数值
             for index in range(0, self.fingers[fingerIndex].projectPara.sensor_num):