From 955e2010b58a87965d686881e557db4e465b6a26 Mon Sep 17 00:00:00 2001
From: Zhaoxing Li <601679388@qq.com>
Date: Sat, 20 Mar 2021 09:22:34 +0800
Subject: [PATCH] =?UTF-8?q?=E3=80=90=E8=BD=BB=E9=87=8F=E7=BA=A7=20PR?=
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---
 .../programming-manual/device/pulse_encoder/pulse_encoder.md  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rt-thread-version/rt-thread-standard/programming-manual/device/pulse_encoder/pulse_encoder.md b/rt-thread-version/rt-thread-standard/programming-manual/device/pulse_encoder/pulse_encoder.md
index 286f2a5..e81a84d 100644
--- a/rt-thread-version/rt-thread-standard/programming-manual/device/pulse_encoder/pulse_encoder.md
+++ b/rt-thread-version/rt-thread-standard/programming-manual/device/pulse_encoder/pulse_encoder.md
@@ -185,7 +185,7 @@ static int pulse_encoder_sample(int argc, char *argv[])
 {
     rt_err_t ret = RT_EOK;
     rt_device_t pulse_encoder_dev = RT_NULL;   /* 脉冲编码器设备句柄 */
-
+    rt_uint32_t i = 0;
     rt_int32_t count;
 
     /* 查找脉冲编码器设备 */
@@ -204,7 +204,7 @@ static int pulse_encoder_sample(int argc, char *argv[])
         return ret;
     }
 
-    for(rt_uint32 i; i <= 10; i++)
+    for( i; i <= 10; i++)
     {
         rt_thread_mdelay(500);
         /* 读取脉冲编码器计数值 */
-- 
Gitee