diff --git a/README.md b/README.md
index f7779f3..7d6fae6 100644
--- a/README.md
+++ b/README.md
@@ -14,8 +14,8 @@ AT+FILTER_TIME_MS?
 ## 调整输入输出是否镜像
 
 ### 设置指令
-AT+IO_MIRROR=0
-AT+IO_MIRROR=1
+AT+IO_MIRROR=0  
+AT+IO_MIRROR=1  
 
 ### 查询指令
 AT+IO_MIRROR?