diff --git a/README.md b/README.md
index fe95c83..a5550bb 100644
--- a/README.md
+++ b/README.md
@@ -1,23 +1,71 @@
-# 说明
-
-本仓库是将 wiringOP 移植到 [Blueberry](https://git.aixiao.me/aixiao/Blueberry) 上。  
-
-
-
-## 下载
-
-```bash
-apt-get update  
-apt-get install -y git  
-git clone https://git.aixiao.me/aixiao/wiringPi_Blueberry.git  
-```
-
-
-
-## 编译安装
-
-```bash
-cd wiringPi_Blueberry
-bash build clean
-bash build 
-```
+# 说明
+
+本仓库是将 wiringOP 移植到 [Blueberry](https://git.aixiao.me/aixiao/Blueberry) 上。  
+
+
+
+## 下载
+
+```bash
+apt-get update  
+apt-get install -y git  
+git clone https://git.aixiao.me/aixiao/wiringPi_Blueberry.git  
+```
+
+
+
+## 编译安装
+
+```bash
+cd wiringPi_Blueberry
+bash build clean
+bash build 
+```
+
+## 测试
+```c
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+int main(int argc, char *argv[])
+{
+    char* usage = "LED flashing\nUsage: %s [wPi]\r\n";
+    int pin_number = 0;
+    
+    if (argc != 2) {
+        printf(usage, argv[0]);
+        exit(0);
+    } else {
+        if (isdigit(*argv[1])) {
+            pin_number = atoi(argv[1]);
+            // do something with pin_number
+            printf("Pin number is %d\n", pin_number);
+        } else {
+            printf("Invalid input for pin number: %s\n", argv[1]);
+            exit(1);
+        }
+    }
+    
+
+    wiringPiSetup();
+    pinMode(pin_number, OUTPUT);
+    
+    while (1)
+    {
+        digitalWrite(pin_number, HIGH);
+        delay(1000);
+        digitalWrite(pin_number, LOW);
+        delay(1000);
+    }
+    
+    return 0;
+}
+
+
+gcc -Wall -g -Os led_flashing.c -lwiringPi -lpthread
+./a.out 3
+
+```