diff --git a/notes/installation/Spark单机版本环境搭建.md b/notes/installation/Spark单机版本环境搭建.md
index 184d0ed..bd0c40f 100644
--- a/notes/installation/Spark单机版本环境搭建.md
+++ b/notes/installation/Spark单机版本环境搭建.md
@@ -107,7 +107,7 @@ hadoop,hadoop
 #### 3. 在scala交互式命令行中执行如下命名
 
 ```scala
-val file = spark.sparkContext.textFile("file:///usr/app//wc.txt")
+val file = spark.sparkContext.textFile("file:///usr/app/wc.txt")
 val wordCounts = file.flatMap(line => line.split(",")).map((word => (word, 1))).reduceByKey(_ + _)
 wordCounts.collect
 ```
@@ -118,4 +118,4 @@ wordCounts.collect
 
 通过spark shell web-ui可以查看作业的执行情况，访问端口为4040
 
-<div align="center"> <img  src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/spark-shell-web-ui.png"/> </div>
\ No newline at end of file
+<div align="center"> <img  src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/spark-shell-web-ui.png"/> </div>