From 0fae8e7e91cc259d791d86252d4bb3ef0c66f160 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8F=A0=E8=90=9D=E6=9C=89=E7=82=B9=E9=85=B8?=
 <yanxiaoqiang_yewu@cmss.chinamobile.com>
Date: Fri, 13 Sep 2024 02:40:28 +0000
Subject: [PATCH] update src/communicate/Serial.py. fix init
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Signed-off-by: 菠萝有点酸 <yanxiaoqiang_yewu@cmss.chinamobile.com>
---
 src/communicate/Serial.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/communicate/Serial.py b/src/communicate/Serial.py
index 83054d2..12864a4 100644
--- a/src/communicate/Serial.py
+++ b/src/communicate/Serial.py
@@ -17,6 +17,8 @@ def serialInit(port,
                 stopbits=serial.STOPBITS_ONE,
                 timeout=0.5):
     ret=False
+    # 在串口打开失败时，ser 会被设为 None，避免了未定义的引用问题。
+    ser=None
     try:
         # 打开串口，并得到串口对象
         ser = serial.Serial(port,
-- 
Gitee