diff --git a/day01/pointer/README.md b/day01/pointer/README.md
index ff0c1e7..a843242 100644
--- a/day01/pointer/README.md
+++ b/day01/pointer/README.md
@@ -19,11 +19,12 @@ flag.IntVar(&port, "port", 8080, "server port") // 命令行参数绑定到变
 flag.Parse()
 ```
 
-
 ## 概念
 
 Go里面的参数 都是值传递, 不是引用传递(指针)
 
+![alt text](image.png)
+
 ```go
 import (
 	"fmt"
@@ -63,8 +64,21 @@ func sumWithPointer(a int, b int, c *int) {
 
 ## 获取用户输入
 
-
-
+```go
+// 获取用户输入
+var i int
+fmt.Println("请输入一个整数：")
+fmt.Scan(&i) // 把输入写入 i
+fmt.Println("你输入的整数是：", i)
+```
 
 ## 绑定CLI参数
 
+```go
+// 命令行参数解析
+// --port 9090
+var port int
+flag.IntVar(&port, "port", 8080, "server port") // 命令行参数绑定到变量
+flag.Parse()
+fmt.Println("服务器端口号是：", port)
+```
diff --git a/day01/pointer/image.png b/day01/pointer/image.png
new file mode 100644
index 0000000..e7660f7
Binary files /dev/null and b/day01/pointer/image.png differ